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Structure of the Canine Eye

By
Randy Kidd
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KEEP YOUR DOG’S EYES HEALTHY: OVERVIEW

1. Eyes respond well to natural health prevention methods, so keep them healthy with nutrition, exercise, care of the immune system, and avoidance of toxins and stressors.

2. Use alternative therapies – by themselves or in combination with conventional medicine – to treat short- or long-term eye problems.

The dog’s eye is pretty much a garden-variety mammalian eye, with some notable adaptations that have evolved over the millennia. It is a globe with two fluid-filled chambers (anterior and posterior). The chambers are separated by the lens, the structure that helps focus light beams onto the rear part of the eye, the retina. The eye’s outer, clear surface, the cornea, offers protection to the inner eye and helps the lens focus light onto the rear of the eyeball, the retina.

Looking into the healthy dog’s eye, you’ll see a dark center (pupil) surrounded by a colored ring known as the iris, and outside the iris is the white sclera. The iris is some shade of brown in most dogs, but some dogs have one or two blue eyes. Attached to the iris are muscles that function to open or close the lens, letting in more or less light, depending on the available light.

Dogs have a prominent third eyelid (nictitating membrane) located at the bottom of the inner part of the eye, between the lower eyelid and the globe of the eye. The third eyelid is thought to offer protection for the eyeball and to help in removing foreign bodies. Third eyelids are normally concealed beneath the lower eyelids, but one or both may become prominent with certain diseases, for several hours after general anesthetic, and with irritation from a foreign body.

Dogs have upper and lower eyelids, and irritations or scratches may arise when the hairs on these lids project toward the eyeball – a condition either genetic or a result of a wound that scarred the lid. The muscles surrounding the eyeballs (the orbicularis oculi) move the eye’s globe so it can be directed toward what the dog wants to see.

The Function of A Dog’s Eye

While the human has evolved as a diurnal (active in the daytime) species, dogs initially evolved as nocturnal or crepuscular (active at dawn and dusk) predator species. As a result, we humans have great visual acuity, color perception, and depth perception, but we do not see well in the dark.

Dogs, in contrast, have well-developed night vision and their sight is well adapted to detect movement. There is some trade-off between visual acuity (the ability to see detail) and the ability to see in the dark. The dog’s visual acuity has been estimated at six times poorer than an average human; admittedly, this is a bit of a guesstimate (how do you get a dog to read an eye chart?).

Structure of the Canine Eye

Compared to the human eye, the dog has a larger lens and a correspondingly larger corneal surface, enhancing its ability to capture light and thus see in reduced lighting conditions. In addition, behind the dog’s retina is a reflective surface, the tapetum, which further enhances low-light vision. The eerie glow you see when a beam of light hits your dog’s eyes at night is the reflection from the tapetal surface of his eye. The tapetum is also easy to see during a routine eye exam using an ophthalmoscope.

Much like the human retina, the dog’s retina is lined with rods (the sensing cells adapted to work best in low light and used for motion detection) and cones (cells that work best in mid to high levels of light, with the ability to detect color). The proportion of rods to cones is much higher in dogs than humans, thus the enhanced night vision in dogs.

In addition, dogs only have two types of cones (dichromat), whereas humans have three types (trichromat). This expansion of cone-cell types allows the human to see a wider spectrum of color; the dog’s world probably consists of yellows, blues, and grays, while the human color range expands into the reds and greens.

A dog’s lateral eye placement allows better wide-angle vision but hinders depth perception and close-up viewing because there is minimal visual overlap between the two eyes (called binocular convergence). Thus, your dog can easily snag a ball moving sideways but may have trouble catching a ball tossed right at his nose.

Specialized eye exams can detect the focal point of the lens – whether it is right on the retina (normal or emmetropia), in front of (myopia or nearsightedness), or behind it (hyperopia or farsightedness). At one time it was assumed all dogs were myopic, but judging from new information on these evaluations, most dogs are likely very near normal (emmetropic). Some breeds, however, are especially prone to being myopic. (Of the examined dogs, the breeds that had a higher incidence of myopia included German Shepherds, Rottweilers, and Schnauzers.)

As a person ages, his lenses “harden” and may eventually develop cataracts. As the lens hardens, its ability to bend (or “refract”) the incoming light to focus it on the retina diminishes, so the person’s visual acuity is diminished over the years and the person typically becomes myopic. Dogs, too, experience this hardening of the lens (see information on cataracts below), and conventional medicine often recommends surgically removing them. However, recent information indicates that after surgery, without the refractive ability of the lens, dogs become terribly hyperopic. Recent advances have produced intraocular prosthetic lenses that help correct for this loss of focusing ability.

The Other Senses in Dogs

Dogs “see” with much more than their eyes; in fact, in comparison to humans, dogs rely far less on their vision. While the dog’s visual perceptions are relatively fuzzy and less colorful compared to ours, the canine nose and ears provide him with profoundly more sensation than do ours. Dogs may smell us long before they see us, and they can hear sounds that don’t even touch our zone of hearing. (More about these senses/organs in later articles.)

In addition to these differences between species, though, we have to consider that the dog’s (and our) eyes are backed up with a myriad of body senses that add to what they actually see. Animals “see” with their entire bodies, a sense that is augmented in haired areas of the body – the “feeler” whiskers on the snout, for example.

Watch dogs at play and it is quite apparent they have an incredible sense of balance. We know that diminished vision (or dizziness) adversely affects this ability to orient the body to the horizon. The sense of balance is enhanced by the nerve endings on the pads of the feet, the joints, and the nerves throughout the spine. All these send kinesthetic information back to the brain, which the animal then processes into information that gives him the current balance status.

There are even more, often subtle, ways of “seeing” that we know little about. What is it, for example, that a dog “sees” in an individual that makes him growl in distrust? Do some (or all) dogs see auras? How is it that the pineal gland, located deep inside the brain, “sees” nature’s cyclic differences in light patterns to trigger reproductive and sleep patterns?

An Alternate Look at Canine Eyes

We can describe the eye in terms of anatomy and physiology. But there are other ways of understanding the eye, and in terms of natural health, these ways may be even more important than the mechanistic descriptions.

Traditionally, the eye has been seen as the portal to the animal’s spirit or soul, and in all cultures there is an abundance of folklore about the eyes: about the connections between eyes and the gods, the relationship of the eyes and the sun or moon or other natural phenomena, and about the eyes as they signify the well being of the animal and of the species.

Many holistic health practitioners also consider the eyes to be sentinels – expressing on the outside the current inner health status of the animal. A healthy animal has eyes that literally shine – giving off a radiant vitality that speaks of whole-body health. A common comment I get from clients after we’ve taken their dog’s pain away with chiropractic and acupuncture is, “I’m not sure he’s walking a whole lot better, but his eyes have their old gleam back.” And, I’ve had clients say, “Doc, you’ve given me my dog back. I can see his old self in his eyes.”

In contrast, a sick animal often mirrors his illness through his eyes. Obvious symptoms include eye discharges or color changes. Reddened eyes, for example, can indicate any number of inner diseases, and severe liver disease may change the normally white sclera to a yellowish tinge. An animal who is sick oftentimes has eyes that have simply lost their luster, seem to be darker or greyer, and/or have lost their ability to mirror vital energy.

Chinese medicine gives another perspective on the eyes. In Chinese medicine the Liver organ system opens into the eyes, and the state of all the “organs” is reflected in the eyes because the pure Jing Qi (activated source of life) of all the organs “pours through the eyes.”

The general appearance of the eyes is especially important for perceiving the animal’s spirit (its Shen). Lively eyes indicate that the Jing (source of life) is uninjured. Stiff, “wooden,” inflexible eyes show a condition that is considered “deficient.” If the whites of the eyes are red, it is a sign of an excess (or “heat”) condition, caused by either “external influences” or an “excess of heat” from an organ, usually the liver.

Structure of the Canine Eye

Additionally, some methods use the eyes specifically as an aid to diagnosis. Iridology, for example, claims to be able to diagnose diseases by observing the iris. According to this method, areas of the iris are correlated to organs and areas of the body. When there is a disease within the body, it will be reflected as a change in color or shape in the corresponding area of the iris.

Finally, the time comes at the end of an animal’s life when all vitality seems to be drained, when the eyes seem to be emptied of nearly all of their normal energetics. It’s as if the eyes are telling us it is now time to go on to another life – and veterinarians I know use this eye-sensitive way to help clients decide when it’s time for euthanasia.

Natural Eye Care for Dogs

You can care for your dog’s eyes naturally. As with any organ system, preventing diseases is always much easier than trying to cure them after the fact.

• Exercise and the eyes. Whole-body exercise is a prime component of any program of natural eye care. The eye’s structures are extremely sensitive to oxidative stress and to other toxins. Exercise is our first line of defense and perhaps our most natural antioxidant, helping move oxygen through all the eye’s structures and helping eliminate a buildup of toxins.

For healthy body, mind, spirit, and eyes, walk with your dog for at least 20 minutes a day, and (if your vet has checked him out as basically healthy) occasionally give him some anaerobic exercise by tossing the ball or letting him take a good swim.

• Food for the eyes. Nutrition is equally important as exercise, and there are some general eye-care nutrients as well as some that have specific healing qualities for eyes.

Good food for the eyes includes a healthy dose of antioxidants such as vitamins B, C, and E; beta-carotene (and other carotenes such as lutein); co-enzyme Q10; and alpha-lipoic acid. Antioxidants are abundant in green leafy vegetables and other highly colored foods such corn, squash, and egg yolks, and many herbs (including the common culinary ones) are high in antioxidant activity. Zinc, selenium, and magnesium are also important “eye nutrients.” Water is a critical eye nutrient because the membranes of the eye are susceptible to drying when the animal is dehydrated.

Lutein and alpha-lipoic acid have been mentioned in recent human medicine literature as being especially beneficial for eyes, with the usual caveat that results are still preliminary.

• Immune system care. Many holistic practitioners feel there is a connection between many (if not all) chronic eye conditions and an imbalanced immune system. In addition to the antioxidants mentioned above, herbs such as echinacea (Echinacea spp.) and Siberian ginseng (Eleutherococcus senticosus) can enhance and rebalance the immune system.

To improve eye conditions, try to avoid anything that compromises the immune system: excess stress; food additives such as synthetic preservatives and artificial flavors and colorings; environmental toxins such as pesticides and herbicides; and the excess use of vaccines.

Since the liver is a major detoxifying organ and (according to Chinese medicine) directly connected to the eyes, it is important to keep it healthy. Nutrients such as the B-vitamins, choline, and inositol enhance liver function. Herbs that are beneficial to the liver include milk thistle (Silybum marianum), turmeric (Curcuma domestica), and dandelion root (Taraxacum officinale).

Practitioners of Chinese medicine believe that anger and depression adversely affect the liver and these emotions also stress the immune system. If a dog is angry (for constantly being left home alone, for example) or depressed (possibly from the recent loss of one of his companions), consider flower essences or aromatherapy for their remedial effects on the emotions.

• Eye massage. One way to ease eye tensions and to improve circulation to the eye is to give your dog a massage. Use your fingertips to make a circular motion that begins at the corner of the eye and moves clockwise around the bony structures surrounding the eye. Let your fingers gently dip into tissues surrounding the eye; located here is the Orbicularis oculi, the muscle mass responsible for rotating and turning the eyes.

Concentrate on the corners of the eye (both lateral and medial). Do this circular massage several times, first clockwise, then counter-clockwise – as long as your dog enjoys it. Then, gently lay your fingers over the eye and very gently add pressure to the eyelid. (Practice on yourself first to see how much pressure is comfortable.) This very simple massage not only is relaxing and rejuvenating to the eyes, it stimulates several key acupuncture points.

A continuation of the eye massage is to massage areas that contain key eye-related acupuncture points and “trigger points” (areas that are sore when the associated organ is affected). Give your dog a general neck massage along the sides (from the mastoid bone to the sternum) and upper part of the dog’s neck (from the base of the skull to the shoulders); massage deeply around the upper shoulders; and also massage along the muscles where the two jaw bones attach.

Make a Natural Eye Wash for Your Dog

For mild eye irritation caused by dust or other irritants, make a simple, soothing salt solution, or brew this herbal bath made from eyebright (Euphrasia officinalis). Mix ¼ teaspoon of sea salt into a cup of distilled or filtered water. For the herbal eye wash, use one teaspoon of the herb in a cup of water, boil, strain, and add ¼ teaspoon of sea salt into this cup of brew.

Use a clean cloth or gauze soaked in the solution to clean away crusts and secretions from the eyes and lids, or place several drops directly into the eye. This solution can be used frequently as an eye wash and for its soothing properties, and it can be used to remove simple intruders such as dust or airborne irritants. After the eyes are clean, add a drop of soothing, fresh, pure almond oil to each eye. (Make sure the oil used is not essential or aromatherapy oils.)

Holistic Medicines for Dog Eyes

As a general rule holistic medicines function extremely well for treating chronic ocular problems, and western medicines may be more appropriate for some of the acute or traumatic conditions.

Cataracts are an example of a condition that typically arises slowly and gradually, over time. Preventing their occurrence with holistic methods (nutrition, herbs, and food supplements) is the best course of action. Once they have developed, western medicine might recommend cataract surgery to remove them. But I personally would use this only as a last resort, considering holistic options first, whenever possible.

On the other hand, if a dog has just been kicked in the eye by a mule and there is immediate swelling and perhaps blood, I’d make a quick trip to the best eye specialist I could find.

A red eye (conjunctivitis) might be an example of a case that is in the gray zone – whether you should consider western medicine, alternative therapies, or consult a veterinary ophthalmologist will depend on the severity of the case, whether it came about acutely or over time, and your own gut feelings for what you feel would be the right way to proceed.

Conventional Western medicine tends to be fast-acting, but typically addresses conditions only at their surface, palliating symptoms with little concern for the underlying cause, which results in a lack of deep healing. Alternative medicines are, as a general rule, slower to act, perhaps because they tend to delve deeper into the cause of the condition. While adverse side effects can occur with any medicine (or almost any substance, for that matter), they occur far less frequently with alternative medicines. Some of us feel that many of the conventional Western medical methods actually create long-term, chronic problems.

Acupuncture has been successfully used to treat many eye conditions. Keratitis, chronic conjunctivitis, and all sorts of eye irritations typically respond favorably to acupuncture, and cataracts or even blindness may respond.

Structure of the Canine Eye

A typical acupuncture approach to eye conditions might seem strange to a western-trained practitioner. Chinese medicine visualizes the eyes as connected to the Liver (an “organ system” concept that correlates somewhat, but not entirely, to Western medicine’s understanding of the form and function of the liver).

An acupuncturist might therefore diagnose a condition of conjunctivitis as an example of excess/heat of the Liver, and her needling points would be positioned to bring the Liver back into balance and to further bring the whole body back to a state of harmony of Yin and Yang.

Many healing herbs can be applied topically to the eyes and have proved to be successful for treating all kinds of eye conditions. In addition, herbs can be taken internally for their nutrient value – vitamins, minerals, and antioxidants.

Some herbs, notably bilberry (Vaccinium myrtillus) and eyebright (Euphrasia officinalis) are reputed to have a direct effect on the eyes when taken internally. In addition, many herbs enhance liver function and the immune system, the other important components of overall eye care. [Editor’s note: Dr. Kidd’s book, Dr. Kidd’s Guide to Herbal Dog Care, contains much more information on herbs for dogs.]

At first glance it may seem that chiropractic adjustments would have no effect on the eyes. But the eyes are, after all, connected directly to the brain. Trigger points along the neck muscles may refer to conditions occurring in or around the eyes, and these trigger points may be due to underlying misalignments of vertebrae. So, in addition to massage, chiropractic adjustments may alleviate these trigger points and concurrently help eye conditions.

Common eye diseases, diagnoses, and natural treatments Following are brief discussions of the diagnoses and treatment protocol a holistic practitioner might use for the most common eye diseases of dogs: eye irritants, conjunctivitis and keratitis, cataracts, and dry eyes. Remember that every case presents its individual problems and solutions, and that there is no one-treatment/dosage-fits-all in holistic medicine. Remember too that holistic medicine (at least as I define it) includes the possibility that we may use some of conventional Western medicine’s methods as well those normally considered alternative.

All the treatments listed below assume that, along with these treatments, we will also be doing some or all of the above mentioned therapies: periodic cleansing and soothing eye washes; nutrient and herbal support; massage; exercise; enhancing the immune system and avoiding anything that might diminish its abilities; and giving attention to the liver as it is associated with the eyes.

Finally, I absolutely recommend that you immediately see a veterinarian (who may want to refer you to a Board Certified Ophthalmologist) whenever the eye symptoms have a sudden onset; you see blood, either around the eye or within the globe itself; the eyeball itself appears swollen or the eyelids are severely swollen; and the pain or irritation is driving your dog nuts.

• Eye irritations. Intruders into the eye can be almost anything from dust particles, pollen, irritating chemicals (pesticides, herbicides, etc.), and smoke to larger splinters, thorns, or plant awns (such as foxtails). A common, temporary intruder, especially for inquisitive puppies, is a cat’s claw. The extent of the damage caused by these intruders depends on whether they have scratched or ulcerated the cornea and on the amount of pain or irritation they produce.

Signs that your dog has acquired an eye irritant include tearing and redness; whining, scratching at the eye(s), rubbing on the floor; swelling of tissues surrounding the eye(s); prominence of the third eyelid(s); and if the condition has been ongoing for a while, a mucoid (gunky) or purulent (pus-containing) discharge.

If only one eye is affected, the irritant is likely limited to that eye (think foreign body such as a fox tail here, or irritation from a scratch). If both eyes are affected, it is likely from an environmental irritant, but with bilateral involvement we also have to consider the possibility of generalized disease.

Removal of the irritant is, of course, the first step. For dust particles and mild chemical irritants, the eye wash listed earlier will probably suffice. Larger particles may need to be removed mechanically and this often requires anesthesia. It always surprised me the number of seemingly huge foreign bodies (oftentimes foxtails) I removed from behind the third eyelid when I was managing an emergency clinic in California. These are typically hidden from view and require anesthesia to remove.

If the redness and irritation persist after you’ve washed out the irritant, there may be a scratch on the cornea. Have your vet stain it to be sure, and use the follow-up treatment that is appropriate for the extent of the damage.

• Conjunctivitis and keratitis. Conjunctivitis is inflammation of the membrane that lines your dog’s eyelids and the front of the sclera; keratitis is inflammation of the cornea. The presence of either of these diseases may indicate a generalized disease or one limited to the eyes, and their symptoms are much the same as those that occur with irritants (perhaps without the intense pain). Conjunctivitis and/or keratitis can be caused by any number of infectious agents – bacterial, viral, or fungal.

Some herbs have antibiotic activity, and herbal medicines are typically effective against a broad range of potential pathogens. For mild conjunctivitis, a soothing tea with additional antimicrobial activity can be brewed using one or more of the following herbs: chamomile (Matricaria chamomilla), calendula (Calendula officinalis), elder flowers (Sambuscus nigra), or Oregon grape root (Mahonia spp).

Strain the brew and soak a clean cloth or gauze to be used as a compress over the eye, or put several drops directly into the eye several times a day.

In Chinese medicine the most common cause of conjunctivitis is Liver Heat. Acupuncture can be used to “calm” the heat and restore immune system balance.

• Cataracts. A cataract is a spot on the lens (or over the entire lens) that has lost its transparency. When a dog’s pupils appear blue or gray in normal light, he likely has cataracts. (A scar on the cornea – from an old, healed wound, for example – may also appear as a gray or blue spot. Your vet can tell whether you are dealing with an old scar or cataracts.) Cataracts develop gradually, typically over several years.

In humans almost everyone over the age of 65 has some degree of opacity, and after 75, cataracts are common. Cataracts usually occur in both eyes, are painless, and almost never cause total blindness. While they are commonly a factor of old age, cataracts may also be caused (or precipitated) by trauma, chemicals (especially steroids), X-rays, and high blood sugar as observed with diabetes mellitus.

Conventional therapy consists of removing the lens surgically, but cataracts are an example of a condition that may respond very well to alternative therapies.

Nutrition is especially helpful, concentrating on antioxidants: alpha-lipoic acid, Coenzyme Q10, and lutein (the carotenoid that is concentrated in the pupil), have all been mentioned as especially important here. In addition, vitamins A, C, and E are important, as is zinc and the B vitamins. Make sure the dog drinks plenty of water, to prevent the membranes of the eye from dehydration.

Good herbs to add to the diet include eyebright and bilberry, and any others with antioxidant activity. (Almost all the common culinary herbs have significant antioxidant activity, making them a good nutritional supplement for their medicinal quality as well as for their ability to stimulate the aging appetite.)

Acupuncture might be helpful for improving circulation to the head, immune-system function, and to promote healing.

• Dry eyes and arthritis. Tears are not just water. They have three separate components: oil (from the Meibomian glands in the eyelids); mucus (from goblet cells deep inside the eyelids); and watery tears (from the lachrymal glands located in the conjunctiva of the eyelid). Tears wash away intruders and lubricate the eyes and lids.

Dry eyes can be caused by eye diseases or systemic conditions, and evidence is mounting that common causes are related to other chronic and immune-mediated medical conditions such as arthritis, diabetes, and systemic lupus. Many medications, such as antihistamines, antidepressants, diuretics, gastrointestinal medications, and cold remedies, can also cause dry eyes.

Symptoms of dry eyes – the result of corneal drying and possible ulcerations – include redness, pain and itching, and even excessive tearing at times. Diagnosis of dry eyes is confirmed by a test called a Shirmer test which uses a test strip of paper placed on the lower lid to measure the production of tears.

Conventional treatment consists of restoring the tear film with artificial tears. There are three types of artificial tears: preserved (with benzalkonium chloride or EDTA), transiently preserved, and nonpreserved. Preserved tears, while perhaps the safest in avoiding potential contamination, can be irritating to some patients. Transiently preserved tears are more cost-effective while being minimally irritating. Nonpreserved tears are meant for single-dose administration and are the most expensive.

Similasan eyedrops, a homeopathic herbal preparation containing apis, euphrasia, and sabadilla, can be substituted for the other artificial tear preparations.

Nutritional support is especially important for treating dry eyes. Antioxidants are very helpful. Be sure to include vitamin A or other carotenoids (those with a vitamin A deficiency often have dry eyes, skin, and hair); B vitamins; zinc; magnesium (dilates the small blood vessels that bring blood to the tear glands); and calcium. Again, make sure the dog drinks plenty of water.

Since there is good evidence of a connection between dry eye and arthritis, when treating dry eye, many holistic practitioners add supplemental therapies for arthritis from the outset, such as glucosamine and chondroitin sulfate.

Veterinary Ophthalmology

Board Certified Veterinary Ophthalmologists are veterinarians who have taken extra training in the specialty of ophthalmology, and their expertise is invaluable in many instances. They are especially helpful for treating severe emergencies and for providing specific diagnoses of problem cases. They see enough cases that their diagnostic and treatment capabilities far exceed those of the general practitioner veterinarian. (I saw quite a few traumatic eye cases when I ran an emergency clinic, but I still felt more comfortable when the ophthalmologist had re-checked my diagnosis and treatment.)

While most ophthalmologists may have not had training or experience in alternative medicines, their initial input is often invaluable, and I’ve generally found this group to be accepting of alternative methods. If you are concerned about your dog’s progress, or if you have any questions, have your vet refer you to a Board Certified Veterinary Ophthalmologist – they can be found in most large cities and almost all veterinary schools.

Dr. Randy Kidd earned his DVM degree from Ohio State University and his Ph.D. in Pathology/Clinical Pathology from Kansas State University. A past president of the American Holistic Veterinary Medical Association, he’s author of Dr. Kidd’s Guide to Herbal Dog Care and Dr. Kidd’s Guide to Herbal Cat Care.

Help Prevent Tragedies With the Pet Fund

By
Nancy Kerns
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We hear about a lot of amazing people who are doing great deeds for and with dogs – people involved with rescuing and fostering dogs, search and rescue, training service or therapy dogs, etc. We also know that dog lovers are asked, frequently, to donate money to these and many other animal-oriented good causes. But because our primary mission is to provide our readers with information they can use to benefit their own dogs, we don’t often highlight these admirable canine-oriented social services in the pages of Whole Dog Journal.

We’re making an exception for the Pet Fund, largely because it’s possible (but we hope it doesn’t happen) that the organization could provide you or someone you know with a lifesaving service someday.

Saving lives
In its simplest description, the Pet Fund pays for urgent veterinary care for pets whose owners cannot afford it.

The people behind the Pet Fund deplore the fact that dogs (and other pets) are sometimes euthanized, relinquished to shelters, or suffer without medical care because their owners cannot afford expensive surgery or emergency vet visits. Pet insurance programs are available, but often even these programs cannot cover the total cost of necessary medical care. The Pet Fund can, for a limited number of qualified owners, step in and make a huge difference, sometimes with only a modest grant.

Here’s how it works. Either a participating veterinarian or an individual contacts the Pet Fund. The veterinarian discusses her diagnosis, prognosis, and recommended treatment of the animal needing assistance with a Pet Fund staff member. Depending on the level of funding available and the urgency of the needed treatment, the Pet Fund staff decides whether or not to fund the animal’s care, based on several factors.

Pet Fund

The decision is based on the stated financial need of the owner, the opinion of the treating vet as to the medical necessity and urgency of the treatment needed, and the demonstrated capability of the animal owners to be responsible for their animals.

According to Karen Leslie, Executive Director of the Pet Fund, “The owner’s responsibility is crucial, since we will not fund treatment for animals whose owners do not seem to be able to care for the animals’ basic needs now or in the future. One of the greatest benefits of the Pet Fund is keeping animals out of shelters, so giving funds to irresponsible owners would not accomplish this goal. There is a significant difference between pet owners who are responsible but have incurred financial difficulties and irresponsible owners who view their animals as objects and unnecessary expenses.”

If the funding needed for a particular course of treatment is available and approved after the consultation with the veterinarian, the Pet Fund staff informs the vet of the level of funding that will be granted. (Funds are dispersed only to treating veterinarians, never to individuals.) The most urgent cases are funded first, with other less urgent requests put on a waiting list for available funding.

The people behind the Pet Fund are clear that its intent is not to grant funds for any “heroic” lifesaving measures which would cause unnecessary suffering to animals, nor to fund basic medical care, such as vaccinations, spay and neuter surgeries, or routine veterinary care. “We feel it is the responsibility of all pet owners to budget for these expenses,” says Leslie. “The Pet Fund can best serve in urgent situations where serious medical treatment is needed beyond routine care.”

Other goals
Recognizing that preventive care could help many pet owners avoid many future medical problems for their companion animals, the Pet Fund provides information about available products, services, and healthy pet practices on its Web site. Information about pet insurance plans and financial services (such as savings plans and debt counseling agencies) is also made available to interested pet owners.

“If we do not provide a way for the pet owner to develop financial freedom, we have not totally remedied the situation or accomplished our goal,” says Leslie. “It’s a large part of our objective to ensure that our clients provide a more secure future for their companion animals by developing their resources in order to become independent and stable. The Pet Fund therefore truly benefits both animals and people.”

At this point, most of the Pet Fund’s grants fall into the $500 range, making up the difference between the cost of an animal’s treatment and what each client is able to pay. The grants have provided assistance to hundreds of companion animal owners; we think helping the Pet Fund reach its goal of helping thousands of animals is a great idea.

Service Dogs In National Parks

By
Jane Cox
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“Is he something special, or just a mutt?” the man asked, as I passed him on the trail. Trigger, my 65-pound Australian Shepherd mix stood beside me with tail wagging, ready, as always, to meet this inquisitive stranger with the blunt question of parentage.

As one of the first people to hike in a national park with a service dog, I was very aware that Trigger and I had the responsibility to set a good example and to educate people about service dogs in national parks. Often when we stepped off the trail for a break or to let people pass, we got questions and I always took the time to answer them as accurately as possible. A lot of questions were about service dogs:

• What kind of service does he perform? (This, as he stands there wearing a pack!)

• Did he go to service dog school?

• Where do you get a pack dog?

While many dogs are trained by professionals and there are schools for the most common functions that dogs perform (such as guide and sound alert), many more dogs are trained by owners to perform the services necessary to meet their own specific needs. When I adopted Trigger I didn’t know he was to become my service/pack dog. But as our relationship developed and his training progressed, I also learned that I qualified under the Americans With Disabilities Act to declare him as my service/pack dog. This made it possible for me to take him into national parks and other places where dogs as pets are not allowed.

Defining Disabled

If you hike with a service dog, one personal question that you should be prepared to deal with is obvious: Why do you need a service dog? The details and nature of your response may depend on who is asking and why.

Many people do not understand how an individual can hike five or six miles over mountainous terrain and be disabled. When I meet people in high mountain camps or on the trail, I tell them about the ADA, which mandates a much more user-friendly (though relatively untested) definition of disability than that of the federal government for a Social Security disability grant. The ADA uses the terms “restriction,” “limitation,” and “impairment” all interchangeably with the word “disabled.”

I have hiked and backpacked all my life, but I am now substantially limited in what I can carry. The purpose of the ADA is to ensure that people with limitations are not denied full and equal enjoyment of the “goods, services, facilities, privileges, advantages, or accommodations” offered by a place of public service. While the ADA does not require you to show proof of your restriction, I inform park superintendents that I qualify under the ADA for pack-carrying assistance, so they can notify their rangers of this policy exception.

Enhancing the Outdoor Experience for You and Your Dog

If you are an experienced outdoor person and you have a sturdy, well-behaved dog, he has the potential to be of substantial help to you. I used to backpack, but now I am retired, and only able to continue hiking with pack-carrying assistance. Now I like to hike between established camps where meals and primitive shelter are provided.

Well before each trip, Trigger and I start to condition ourselves to carry more weight and hike farther. The maximum pack weight recommended for a dog is 25 percent of its body weight, but that doesn’t mean that every dog will carry that much. Trigger weighs a slender 65 to 70 pounds, but he doesn’t want to carry 15 pounds. He willingly carries about 13 pounds after several months of gradual conditioning. Most of the time, Trigger only carries about seven or eight pounds on a day trip in the winter, and less in the summer. Trigger carries all the water we drink in a day, so his load lightens as we travel.

Some people think that dogs should be banned from public land because they may jump on people, bark at or chase animals, and are generally disruptive or incompatible with nature. I have to agree that I have seen my share of dogs who are out of bounds and out of control, but contrary to what people may think, a well-trained dog is neither disruptive nor incompatible with nature. Animals aren’t any more afraid of a dog than they are of a person, unless they are being stalked or chased.

Trail training would not be complete without careful desensitization to lots of distractions – people, other dogs, bicycles, horses, and mules. I attended canine agility meets and horse shows at fairgrounds, to give him exposure and training to reinforce his steady behavior around livestock and in distracting environments.

Early in his training, when Trigger was tempted to chase a squirrel, I used a long distance “sit” in place rather than a recall to keep him from chasing anything that he saw. Better to use an immobilizing command, such as “sit” or “down” than an active behavior such as “come!” when his predatory reflexes are tempted. I used a dragline for backup to have him sit in place. Then he could be rewarded for a steady response.

One afternoon in the campground on the North Rim of the Grand Canyon Trigger appeared to be asleep. Then all of a sudden he was on his feet with his eyes riveted on a tree. Clinging to the opposite side of the tree was a Kaibab squirrel peeking around the tree trunk at him.

The squirrel could certainly have run away or climbed the tree if he wanted to. Trigger could have barked and scared him away. But it was as if time was suspended as two very alert and curious animals contemplated each other. The squirrel was focusing all of his attention on Trigger; and I had the extended opportunity to observe a friendly natural encounter. Trigger is always pointing things out to me, and it’s fun to see nature through the eyes of a dog.

There was one animal that we were instructed to avoid: the pack mule.

Over the years, mules have become a part of the wilderness experience. Visitors have come to depend on them as a means of transportation, and park staff depend on them as beasts of burden. They are essential for getting food and supplies up to the high camps. The mules are steady and dependable for what they do. The problem is, most of them have never seen dogs.

When hiking in the Grand Canyon, I was instructed to get Trigger off the trail and hide him when I saw mules coming. Once, when we saw the mules coming there was no place for both of us to get off the trail. The only possible place for him to go was down into a steep ravine between two legs of a tight switchback. I couldn’t go down there with him, but I tied his leash to his pack and sent him down, putting him on a “down stay” with a hand signal. The mules, not more than 10 feet above, surrounded him as they made their way around the switchback. He didn’t move until I called him up.

Future of Dog Packing

Is there a future for dog packing in the national parks? There could be, if people traveling with dogs in national parks show consideration and respect for other visitors. At this time, only dogs performing a needed function to compensate for a physical (or mental) limitation of its handler can accompany its person on trails in national parks.

If there were an organization to promote dog packing, could the members reach consensus on what they want? What is their part of the bargain? What kind of privileges would they like to earn? Hiking with a dog (as a pet) in a national park should definitely be an earned privilege, not a right. Dog owners need to take more responsibility for their dogs’ supervision and control, especially in high-use areas.

A lot of people would like to see some kind of special permit for those of us who hike with our dogs. But even so, dog packing under the ADA is a very controversial and contentious subject. Understandably, there is a serious concern that the open nature of the ADA will encourage abuse within it. Along with every right, there is the responsibility to act with respect and consideration for those we meet, and for those who are likely to be most impacted by one’s actions.

If dog owners want to access the back country of national parks, we have to actively educate ourselves and others about canine trail manners, and regulate dog packing so as to minimize the risk of losing what freedoms we still have. Many other users of public lands have organizations to promote their interests. Dog owners do not have any real national voice, but there are a lot of dog owners who would like to be considered as fair share users of public lands.

What else can service dogs do? Find out on Dogster.com.

Jane Cox is author of Dog Packing in National Parks: How a Pack Dog Became a Service Dog. Cox is retired, and lives in Central Point, Oregon.

Microchipping Your Dog – A Good Idea

By
Nancy Kerns
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We’ve all heard at least one tragic story involving a lost dog and a disconsolate owner. We’ve all seen a lost dog scared witless, running down a street with that classic lost dog expression, almost blind with fear.

A lost dog’s chances of finding his way back to his concerned owner are vastly improved if he’s wearing a collar and identification. People may try harder to catch a stray dog who is wearing a collar and tags; they may feel he’s less likely to be abandoned and more likely to be lost. A collar gives a samaritan something to reach for. And, obviously, the identification makes it ridiculously easy for the owner to be immediately notified and summoned to reclaim his errant friend.

Sadly, there are thousands of dogs lost each year who are not wearing a collar and ID, and too many of them are unable to ever return to their homes. The American Humane Association estimates that only about 15 percent of lost dogs and 2 percent of lost cats ever find their way back from shelters to their original owners. Implanted microchips can improve that sad statistic.

Theoretically near-perfect
A microchip is a tiny transponder, coded to display a unique identification number capable of being read by a hand-held scanner. The transponder is embedded in a sealed glass or bioplastic tube, often described as the size of a grain of rice – long-grain rice, anyway. (The tubes are 2mm x 11mm.)

The chip does not contain a battery or any other technology that can wear out; it draws power from and responds only to a scanner held fairly close to the dog and tuned to the correct frequency. The rest of the time, it is completely inert. The chips are implanted under a dog’s skin above his shoulders, with a pre-loaded, sterile syringe and a large-gauge needle. No anesthetic is required, and dogs generally react little more than to a regular vaccination injection.

The owner of the implanted dog then registers the chip with the manufacturer, linking her name and contact information, including numbers for the dog’s veterinarian and an alternate contact person.

Shelters scan every dog brought to their facilities. The scanner reads the chip, a call to the chip maker’s registry locates the owner’s name and contact information, and within minutes, a call is placed and the owner receives the joyous news, “We have your dog.”

Reality bites, sometimes

Microchipping Your Dog

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That’s exactly the way the system works – sometimes. The companies that provide micro-chips and chipping services toss around high numbers to promote the technology; for example, one company reports more than 200,000 pets reunited with their owners so far. These numbers are cause for celebration, and definitely a reason to embrace and support the practice.

Unfortunately, there are some significant problems that prevent the concept from working perfectly all the time:

• Competing microchip manufacturers have created and promoted incompatible technology – scanners that can’t read every chip, and chips that can be read only by certain scanners.

• Not all shelters have scanners. (And so it follows that not all shelters have all scanners.)

• Not all shelters that have scanners scan every dog who gets brought in. Overworked shelter staff may be ill-equipped or dis-inclined to scan a dog that is defensive, or seems aggressive or dangerous.

• Scanners can sometimes fail to read or even detect the presence of a compatible chip, whether due to a technology malfunction or operator error.

• In the early days of microchipping, the implants sometimes “migrated,” or moved to a place where they couldn’t be detected or weren’t detected because the person scanning the dog didn’t expect the chip’s location to be so far from the norm.

This is actually a former problem. Manufacturers say chips now are made with a special coating that, once in contact with body fluids and subcutaneous tissue, helps the body to form a layer of connective tissue around the chip, holding it in place.

• Owners may fail to register their dog’s microchip, or fail to update the registry with current information after they move.

• There are several competing chip registries, which can potentially delay notification of an owner.

Still worthwhile as a back-up
Despite all the potential problems, the fact remains that thousands upon thousands of dogs do get identified and recovered, thanks to their microchip implants. There have been reports in the media of dogs and cats who were found hundreds and even thousands of miles away from their original owners. There have been pets who were identified and brought back to their original owners as much as a decade after being lost!

These reunions, between collarless, tagless pets and their owners, would simply not be possible without microchip technology, imperfect as it is.

And, fortunately, there are a number of things that a dog owner can do to reduce the number of potential problems that could otherwise hinder the effectiveness of the microchip identification system.

What you must do
First, keep a collar and current ID on your dog. Then, because bizarre things happen, have your dog microchipped, in case he becomes lost and separated from his collar.

Before you have a microchip implanted in your dog, do some research in your community. Call all the veterinary hospitals in your area and ask if they implant microchips, and if so, which type? Then call every animal shelter in your area and ask them the same questions. Don’t settle for ambiguous answers; ask to be transferred to one of the staff members who actually scans incoming pets. Find out whether they check for 125- and/or 134.2-kHz chips (see “A Brief History of the Chip Wars,” previous page), and if so, how? Do they use more than one scanner? Or do they have a forward and backward scanner?

If you are extremely fortunate, the animal shelters in your community have and reliably use either a forward and backward scanner, or both types of scanners. (We suggest a letter-writing campaign to urge your shelter to obtain and use an ISO scanner that can read or at least detect all chips.) The next best scenario is the community in which only one type of chip is sold and its corresponding scanner is used reliably by all the area animal shelters.

If your local shelters do not regularly scan for microchips, or do not scan for all the chips that are distributed by vets, clinics, and other shelters in your area – consider having your dog tattooed in addition to or instead of microchipping. Two lines of defense are always better than one.

When Your Dog Hates Being Touched

By
Pat Miller, CBCC-KA, CPDT-KA
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Last month, author Lexiann Grant discussed the benefits of touching for dogs and humans (“Pet the Dog“). I was graphically reminded of those benefits recently when our beloved 15-year-old Pomeranian, Dusty, succumbed to an ulcerated cornea and eventual rupture of his left eye. This is an extremely painful condition, and given his failing ability to use his hind legs, refusal to eat, and signs of obvious depression, we sadly opted for euthanasia.

We spent our last afternoon together sitting in the sun, on the grass lawn of our new farm in Maryland. As I stroked Dusty’s soft golden fur and massaged his limbs and frame, I could see the tension leave his small, frail body. His pain seemed to fade at my touching; he stretched out on the grass with a sigh, more relaxed than he had been since his eye ruptured three days earlier. I could feel my own tension lessen as well, as I savored what I knew were my last moments with this gallant little boy who had shown me that small dogs could be every bit as big in heart and mind as their larger brothers.

I’m grateful that our dogs enjoy being touched, and that we can share the gifts that such healing contact offers. But not all dogs like – or even tolerate – being touched. Fortunately, a dog’s negative association with touching can often be changed through the use of counter-conditioning and desensitization (CC&D).

Classical v. Operant Conditioning in Dog Training

A negative reaction to being touched is usually a classically conditioned response. With classical conditioning, the environment acts on the dog. That is, the dog’s brain contains a pre-programmed message that says, “Touch is BAD!” – and when the dog feels your touch he reacts, without stopping to think. The negative message could be a result of harsh handling and punishment, pain from a prior injury, or simply a lack of adequate handling and socialization when he was a pup.

This is very different from operant conditioning, where the dog acts on the environment. For example, if you say, “Sit!” the dog thinks, “Ah, I know what that means – if I put my bottom on the ground I might get a cookie!” and so he chooses to sit in order to make a good thing happen. When your dog reacts to your touch with distaste, perhaps even aggression, he’s not choosing to react that way, it just happens, thanks to that pre-programmed message in his brain.

Canines Reaction to Being Touched

The most effective and successful way to change your dog’s response to your touch is through counter-conditioning, which reprograms the message at a low level of stimulus that he can at least tolerate – perhaps briefly and softly touching his head. Then we use desensitization to help him accept the touching at gradually increasing levels of intensity – touching more of his body, or touching with more pressure, or for longer periods of time.

It’s almost magical to watch an effective CC&D program in progress. Some behavior changes I’ve seen as a result of this kind of behavior modification have been nothing short of miraculous, such as one family’s Chow mix and newly adopted Chow who wanted to tear each other to shreds, but became fast friends within three weeks when the owners implemented a CC&D program.

Reprogramming Touch Sensitivity in Dogs

Perhaps your dog will tolerate a light touch on the top of his head, and a gentle scratch under his chin, but he becomes very tense if you do more than that, and any efforts to touch his legs and feet or his hindquarters and tail elicit serious warnings about forthcoming aggression. You believe him, and wisely don’t press the issue, but that means even simple but necessary procedures such as nail trimmings and baths are stressful and potentially dangerous.

The first step in your program is to have a complete and thorough veterinary exam, and an adjunct visit to a chiropractor if indicated. Pain is a huge contributor to aggression – if he’s hurting, all the CC&D in the world won’t change his opinion of being touched – it hurts!

Of course, if the whole point is that your dog doesn’t tolerate being touched, how do make him submit to a vet exam before you work on the problem?

Unfortuntely, it’s a necessary evil, so spend a week (or a few weeks) acclimating your dog to a comfortable cloth muzzle. Lend muzzle-wearing a very positive association by pairing its presence and application with wonderful treats. Then muzzle him before the vet or vet tech begins to examine him, in order to keep everyone safe.

Ask your whether using a sedative would help make the experience less traumatic. You might also consider products such as herbal calming agents, Rescue Remedy, and DAP (Dog Appeasing Pheremones, sold as “Comfort Zone“).

With a clean bill of health, you’re ready to begin. You’ll need a large supply of absolutely scrumptious treats – canned chicken, rinsed and drained, is my favorite for CC&D purposes; most dogs totally love it. Pick a comfortable spot on a bed that your dog loves, or lay down a cushion or a soft thick blanket for the two of you to sit on. Attach a leash to your dog’s collar so you don’t have to grab to keep him with you.

The sequence of the next part is very important. You will touch your dog’s head first, very briefly – say for one second – then feed him a tiny bit of chicken. The touch must come first because you want him to understand that the touch makes the chicken happen. If you feed chicken first, then touch, he won’t make that connection.

Keep repeating this step until your touch causes him to look at you with a smiling face as if he’s saying, “Alright – you touched me. Yay! Where’s My Chicken?” You want the “Where’s My Chicken?” (WMC?) response to happen reliably several times in a row before you proceed to the next step.

Good job! You’ve accomplished the first tiny step on a long road; he thinks being touched softly and briefly on the head is a wonderful thing. Now you must decide whether to stop the session – ending on a high note – or continue on because you both are having a wonderful time and don’t want the session to end. If you’re unsure how much longer he will work with you, it’s better to stop sooner, while you’re ahead, than to push it too far and suffer a setback.

If you proceed, the next step might be to touch him on the head, still very gently, but for two seconds. You may lose the WMC? response at first as he adjusts to the increased time, but it will probably return quickly. Continue to increase the time, very gradually, so you don’t lose the progress you’ve made. As your touches get longer, feed him several treats in rapid succession while you are touching. Remember to stop the treats when the touch stops.

Be sure to end the session before one or both of you gets bored, tired, stressed, or frustrated. You can always do another session later that day or the next. If you sense that he’s getting restless, stop the session, feed him a few extra tidbits for being a wonderful boy, and release him with an “All done!” cue. Next time, stop a little sooner – you don’t even want him to think about getting restless.

Session #2 – Taking the Next Step

Canines Reaction to Being Touched

When you start up again with your next session, back up a little. If you ended with five-second gentle touches on your dog’s head, start with three-second touches. You’ll be able to progress more quickly back up to five seconds, but be sure to start within his comfort level and warm up to the place where you ended.

When he has a positive association with gentle touching up to perhaps 10 seconds, you can increase the intensity of a different stimulus – the amount of pressure. Each time you raise the bar for a new stimulus, lower it for the others – in this case you might go back to two or three seconds, with a slightly stronger pressure when you touch. Work to get that positive “Where’s My Chicken?” response with the new amount of pressure at each length of time before you increase the time again.

When he’s responding happily to a moderate amount of touch pressure at 10-15 seconds, you can increase the intensity of the third stimulus in the touch package – the position of your hand. Up until now you’ve been touching him in his most accepting spot – the top of his head. Now you’re going to begin to move your hand to more sensitive places – again reducing the intensity of the other two stimuli – time and pressure.

Perhaps you’ll try ears first. Returning to a very gentle touch, stroke one ear for one to two seconds, then feed some chicken. Repeat this until you’re getting his WMC? response to the ear-stroking, then do the same with the other ear. Gradually increase the length of time you stroke each ear gently, and when you’re getting positive responses to 10-second ear stroking, it’s time to increase the pressure. Shorten your ear strokes back to one to three seconds, but stroke the ear a bit more firmly.

Remember to be very generous with your chicken bits, feeding a morsel or two every time you stroke the ear, and several morsels as the touches get longer. When he’s happy to have you stroke both ears firmly for 10-15 seconds or longer, you can move to a new spot.

Don’t forget to reduce the other stimuli each time you move to a new touching place. After the ears, you might run your hand down the back of his neck, gently and briefly. Treat! You should find that as you work toward various new spots around your dog’s legs and body, he’ll accept new touches more quickly in many places. Adjust your pace to his behavior. If he’s giving you WMC? responses very quickly, you can progress more rapidly in your program. If he seems slower to respond, you’re probably working on or near a very sensitive place, and you need to slow the program down. He’ll tell you how slowly or quickly you can progress. Listen to him. Attempts to force him to accept your touching will backfire, big-time.

Petting Sensitive Spots

Many dogs, even those who are comfortable being touched elsewhere, are tense about having their feet handled. Take extra care as you begin to move down his legs. A few extra days – or weeks – now will pay you jackpots in the long run, when you can finally clip his nails without a violent struggle. Spend lots of time massaging the areas where your dog has come to enjoy being touched, and occasionally work on the more sensitive spots. In addition to the chicken, soothing massage sends a very positive association to the message that you are reprogramming in his brain.

It’s critically important to avoid triggering the negative associations outside your CC&D sessions. If you forget about his sensitivities and grab him during a “real-life” moment you may set your program back. It won’t hurt to skip one or two nail-trimming sessions while you work to get him to accept foot-handling without a fight.

Make sure that others are aware of the importance of respecting your CC&D program too. There’s nothing like having a friend or family member think it’s funny to see your dog’s negative reaction when they play “grab your paws” – thereby undoing all the good work you’ve done. Grrrr! I’ve been known to banish human acquaintances from my household for less!

Factors for Ease of Touch Conditioning

How quickly you complete your CC&D program depends on several factors:

• Your dog’s age, and how long he has been displaying a negative response to being touched.

• The intensity of his negative association with touch.

• The cause of his sensitivity. Prior harsh handling is likely to be more difficult to overcome than lack of handling, since he has a negative association with the human presence as well as the sensitivity to touch itself.

Canines Reaction to Being Touched

• Status of physical contributors to the sensitivity. If your dog has a grass allergy that causes inflammation in his pads, for example, your constant struggle to reduce the discomfort in his feet will slow your CC&D progress.

• Your commitment to implementing the program on a daily basis. Several short sessions a day are generally more effective than one long daily session.

• Your skill at reading your dog’s comfort level and moving the program forward at an appropriate pace without triggering negative reactions.

Success!

The success rate for touch CC&D programs is high. Unlike modification programs for things like dog reactivity, where it’s difficult to control all the variables, you can manage the factors of a touch modification program with relative ease. Chances are good that even if you don’t achieve 100 percent positive association with touching every part of your dog’s body, you can accomplish a positive response for much of it, with agreeable acceptance for the highly sensitive parts.

Just ask our three-year-old Scottish Terrier. When we found him as a stray in Chattanooga as a six-month-old pup, his feet were raw and bloody, he had sores and scabs all over his body from a generalized dermatitis, and his ears were badly infected, all from a severe grass allergy – not uncommon to Scotties. He could barely tolerate being brushed, treating those infected ears was a real challenge, and touching his sore paws was out of the question.

Today, although he’s still a little sensitive about his paws, he adores being touched elsewhere – there’s nothing he loves more than lying on my lap, stretched out flat on his back for tummy rubs, and having the rest of his body brushed and massaged. We’re still working on feet – it was 18 months before I could clip all his nails in one sitting – and his first instinct is to pull away when I touch them – but then he relaxes and enjoys a little foot massage as well.

And for me – there’s nothing like a Scotty body in my lap to help ease the tensions of a busy day, and soften the grief of losing a beloved companion.

Pat Miller, CPDT, is WDJ‘s Training Editor. She is also author of The Power of Positive Dog Training, and Positive Perspectives: Love Your Dog, Train Your Dog.

Using Glucosamine to Prevent Canine Osteoarthritis

By
Lorie Long
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GLUCOSAMINE FOR DOGS: OVERVIEW

• Use a glucosamine supplement early in your dog’s life to prevent osteoarthritis.

• For lower-cost products, buy supplements that contain only glucosamine; the other ingredients in a combination product are what drives the price up.

• Compare the price of products using the cost of a daily dose; some are more concentrated than others, so you feed less on a daily basis.

My Border Terrier, Dash, and I have been enthusiastic agility partners for about four years. It’s difficult to imagine anything more fun than stepping up to the start line at an agility trial and getting ready to rocket around the course with her! Of course, my friends who work with their dogs in flyball, herding, freestyle, obedience, earthdog, lure coursing, hunting, search and rescue, and more, all feel the same way about their dog activity (or activities) of choice.

It can take years to train a dog and to prepare his body for the physical challenges of competition in these sports. Once he’s ready to compete, the goal becomes preservation of his fitness and soundness (physical and mental), so that you both can enjoy your activities for as long as possible. Preventing injury and, as much as possible, the breakdown of structural integrity that accompanies advancing age is a huge challenge.

In recent years, one kind of nutritional supplement in particular has been embraced by competitive dog owners and veterinarians for its ability to meet that challenge. Glycosaminoglycans (GAGs) are the most popular form of joint treatment for both dogs and people. GAGs are supplements – reproductions of chemicals found naturally in the body. Because glucosamine exists naturally in healthy joint cartilage, the idea behind taking a supplemental dose of glucosamine is that it will slow or reverse the destruction of cartilage as a body ages.

Glucosamine is the best known and most commonly used supplement for prevention of lameness due to osteoarthritis (a.k.a. degenerative joint disease) – a disorder of the joints characterized by progressive deterioration of the articular cartilage. It is currently offered in two forms: hydrochloride (HCI) and as a sulfate. Experts say both seem to perform equally well.

Your Dog’s Joints Health

For the active dog, mobility is all about the health of the cartilage that forms the protective cushion between a dog’s bones where they meet at the joint. Cartilage provides a spongy, watery pad where the shoulder, hip, knee, elbow, wrist, and other bones come together, acting as a shock absorber between the bones when they are in motion. Like a fluid pillow full of thick liquid wedged between the bones, cartilage consumes the force of the concussion generated during movement.

Cartilage does not have a blood supply; it relies on the motion of the joint to pump nutritive liquid in and out, pulling needed nourishment into the tissue. With age, cartilage can become drier, thinner, and less effective at cushioning the bones in the joint.

Joint problems occur when the rate at which joint cartilage degrades exceeds the rate at which the dog’s body replenishes it. When the supply of cartilage is inadequate for the needs of the joint, bone rubs against bone, inflaming the bone itself and the surrounding nerves, and producing pain and lack of mobility.

Cartilage is a very dynamic substance, constantly turning over and renewing itself, especially in young dogs. So, proper nourishment of the cartilage tissue is important at all stages of an active dog’s life, not just when visible signs of joint degeneration appear.

Many factors can contribute to the net loss of cartilage in a dog’s joints. Hip dysplasia (an improperly formed ball and socket joint in the hip) and osteochondrosis (poor structural integrity, sometimes due to poor breeding) top the list of hereditary conditions. Injuries to the joint as a result of a dislocation, torn ligaments, or even the trauma of surgery may cause cartilage deterioration. Bone “spurs,” or the excessive growth of bone material in the joint, inflame the joint and break down healthy cartilage. Inflammatory and degenerative joint diseases, like Lyme disease, can affect dogs of all ages. And of course, osteoarthritis – the slowly progressing erosion of cartilage due to age or excessive use of the joint – has become one of the most frequently diagnosed health problems in older and highly active mature dogs.

Athletic Dogs, Arthritic Dogs

Glucosamine supplementation for the arthritic dog is “an absolute must,” says Dr. Bessent. Unfortunately, when signs of joint disease become visible, some inherent damage, such as the accumulation of calcium deposits, has already occurred. Glucosamine does not cure joint disease by reversing existing damage. Rather, it constantly aids in the replenishment of cartilage that decreases irritation, inflammation, and pain.

Remember that nutritional supplements act more slowly than pharmaceutical pain relievers. It may take as long as 30 days to see marked improvements in your dog’s condition using glucosamine. And, just as it takes a while for your dog to improve, it also takes a while for the beneficial effects of glucosamine to fade once supplementation is discontinued. Don’t declare your dog cured because he seems much better even after missing a few days of glucosamine supplementation. Plan on a lifetime maintenance program.

I’m committed to the addition of glucosamine supplementation to my dogs’ diets, in concert with their bimonthly chiropractic adjustments and fresh food meals. I’m now more confident that I’m doing my best to successfully work against the effects of years of high-energy activities on my dogs’ mobility, and giving them every opportunity to stay at the top of their game for a long time.

Fight the onset of joint degradation in your active, high-energy dog by putting into practice the following:

■ Provide a daily glucosamine source beginning at 1-2 years old.

■ Provide regular chiropractic adjustments to maintain structural integrity.

■ Consider acupuncture, massage therapy, and other holistic practices, especially to support speedy recovery from slight to serious injuries.

■ Exercise your dog regularly to maintain range of motion.

■ Feed your dog a healthy diet filled with high quality nutrients.

The Arthritis Symptom-Relief Strategy

A conventional treatment for the discomfort of joint pain in dogs is the administration of pain-relieving non-steroidal anti-inflammatory drugs (NSAIDs), including aspirin, as well as Rimadyl, Deramaxx, and EtoGesic. These pharmaceuticals temporarily relieve pain but may also produce significant, unwanted side effects ranging from gastric upset and bleeding to liver damage and seizures. All of the NSAIDs have been plagued by reports of serious health problems resulting from their use. But they continue to find a following among veterinarians and dog owners who value their potent and fast-acting pain relief.

Unfortunately, many people do not understand that pain relief drugs may mask escalating joint problems. These products do nothing to heal or stabilize the joint’s destruction; as soon as the drugs are discontinued, the dog again experiences all of the discomfort associated with joint deterioration.

Your Role in Your Dog’s Joint Health

Joint cartilage contains an element called glucosamine, an essential building block of healthy cartilage tissue and a key ingredient in cartilage metabolism. A naturally occurring compound in many mammals’ bodies, glucosamine is composed of a sugar and an amino acid, which the body uses in the creation and repair of cartilage. Glucosamine molecules have low compressibility rates, which makes them excellent shock absorbers. These molecules also attract and hold water, which makes them great lubricants.

As joints degrade, a vicious cycle begins. When cartilage suffers damage, the joint area becomes inflamed, thereby releasing enzymes into the joint. These enzymes further break down the cartilage and thin the joint lubricating fluid. The absence of healthy cartilage and the thinning of protective joint fluids make joints more susceptible to injury over time. More injuries add to the cycle of joint deterioration.

A “nutraceutical” or nutritional supplement rather than a drug, glucosamine is extracted from shellfish shells (although there is also a corn-derived version on the market). Available in several chemical forms, including glucosamine hydrochloride and glucosamine sulfate, glucosamine helps to improve joint health by supplementing the nourishment of the cartilage with more glucosamine than the body produces itself.

Therefore, adding glucosamine in the form of supplementation essentially tips the balance in favor of the creation of healthy cartilage, and halts the cycle of net cartilage loss due to overuse, injury, or joint disease. The goal is to provide the tissue with plenty of the component the body uses to produce healthy cartilage cells that quickly replace damaged or lost cells. Glucosamine performs this work by creating an environment that supports cell formation and the thickening of joint fluids.

“Every active dog should be on a glucosamine source,” asserts Dr. Chris Bessent, a Wisconsin-based veterinarian specializing in natural treatment methods for performance horses and dogs. She explains that most athletic dogs have healthy joints that have not sustained damage yet. But, active dogs regularly “push the envelope,” causing some joint inflammation that can develop into early joint breakdown. Dr. Bessent refers to mature, athletic dogs that show the generalized, early signs of joint deterioration as “dogs running on four low tires.” Supplementing with glucosamine, she believes, “pumps up the tires” again.

Dr. Bessent recommends taking a proactive approach to joint maintenance and injury prevention starting when an athletic dog is one to two years old. This is a far-sighted approach that may not be appreciated by most dog owners, especially when they see the price tag on some glucosamine supplements.

Selling people on the value of preventive maintenance is difficult, unless they have had a dog with a promising competitive career cut short by osteoarthritis. This is the point at which most veterinarians will mention glucosamine to their clients, but much of the damage has already occurred. However, even in late-stage osteoarthritis, the supplement may improve matters enough to make it worthwhile.

Choosing a Good Arthritis Supplement for Your Dog

The pet supply marketplace overflows with all sorts of glucosamine supplements, many containing ingredients that reportedly enhance the positive effects of glucosamine. These supplements come in a variety of forms and dosages, and pricing runs all over the map. For example, a well-known supplement called “InflamAway”, which contains yucca and garlic in addition to glucosamine, has a suggested dose of one 1500mg tablet per 40 lbs. of body weight. This does not deliver 1500mg of glucosamine to your dog. A call to the company revealed one 1500mg tablet contains only 100mg of glucosamine. It is important to note here that GAGs are sold as “dietary supplements” rather than as medicines, and are not regulated by the FDA. This puts dosage and exact ingredient labelling up for discrepancies. Just about every pet supplement manufacturer offers at least one glucosamine product, so buyer beware!

Also, many manufacturers add “synergistic” ingredients to the supplement including vitamins C, D, and E; manganese; Omega-3 and Omega-6 fatty acids; and herbs like yucca and alfalfa. Many supplements also contain chondroitin sulfate, which some medical professionals believe aids in holding fluids in the cartilage. Several manufacturers also offer chondroitin sulfate as a stand-alone product of equal importance to glucosamine.

Dr. Bessent has used both glucosamine and chondroitin in her practice for years, and has experienced “huge” clinical successes using glucosamine, and “some” clinical improvement using chondroitin. According to Dr. Bessent, the glucosamine molecules are smaller and probably have a better absorption rate than chondroitin.

Dr. Bessent says that the base product, glucosamine, is really inexpensive – a fact that won’t be apparent as you start shopping; many of the products on the market are quite expensive. However, the most expensive supplements tend to be the combination products. Shop around and chose reasonably priced combination products if you think the added ingredients are appropriate for your dog, but look for pure glucosamine if prevention of joint deterioration is your goal. “The glucosamine is the important part of the compound,” asserts Dr. Bessent.

Although, ironically, it’s no guarantee, make sure the manufacturer provides a “guaranteed analysis” of the amount of glucosamine in each dosage.

The results of tests of glucosamine and glucosamine-combination products conducted by ConsumerLab.com, a firm that provides independent test results and information to help consumers and healthcare professionals evaluate health, wellness, and nutrition products, were released in November 2003. Of 49 products they tested, four contained much less chondroitin than the products’ “guaranteed analysis” stated. Shockingly, two pet supplements contained no chondroitin whatsoever – None! Zip! Zilch! – despite the labels claiming contents of 87.5 to 750 mg of chondroitin content.

Our recommendation is to look for a product with a guaranteed analysis, and then to contact the company and ask for proof of third-party testing or verification of the analysis. Additionally, we recommend starting your dog off on a single-substance supplement to clearly gauge its effects, then trying one with added ingredients later.

Contraindicated Supplement Labelling

In cases where dogs have medical conditions that preclude supplementation with glucosamine, chondroitin provides a treatment alternative. Most commonly, these conditions are as follows:

• Dogs having trouble with bleeding – Glucosamine may increase blood clotting times in dogs, so dogs with bleeding problems should not take glucosamine.

• Dogs diagnosed with diabetes or at risk for diabetes – Glucosamine is sugar-based and is not appropriate for diabetic animals.

Again, when choosing a chondroitin supplement, look for a product with a guaranteed analysis; then, contact the company and ask if they have third-party testing or verification of the analysis. This sort of reporting sounds extreme, but for a pricey supplement, given for a long time, it’s necessary to make sure you get your money’s worth.

Glucosamine Delivery and Dosage for Dogs

There are several common delivery methods used for glucosamine supplementation: pills and capsules, powder, liquid, and intramuscular injection. Dr. Bessent deems all of these methods acceptable.

When an owner plans to use an oral glucosamine supplement, Dr. Bessent recommends a dosage level higher than she would use in an injection to accommodate some of the degradation that takes place in the dog’s stomach during digestion. Intramuscular injection gets the glucosamine into the bloodstream without traveling through the “acid pit” of the stomach, so she administers lower dosages of the injectable products. Pills and capsules that degrade properly in the stomach offer the same bioavailability as powders and liquids. Dr. Bessent recommends administering oral glucosamine supplements in the following daily dosages:

• Dogs 5-20 pounds: 250-500 mg
• Dogs 20-45 pounds: 500 mg
• Dogs 45-90 pounds: 1,000 mg
• Dogs more than 90 pounds: 1,500 mg

Use chondroitin supplements in the following daily dosages:

• Dogs less than 80 pounds: 900 mg
• Dogs more than 80 pounds: 1,800 mg

Dr. Bessent says she has been impressed recently with clinical results using d-acetyl glucosamine, a form of glucosamine given by injection. This supplement is not produced by pet supplement manufacturers and cannot be ordered from a catalog, but must be compounded by a veterinary pharmacist.

For many years Dr. Bessent has relied on Vita-Flex, an oral glucosamine supplement in powder form that she advises her clients to add to their horses’ and dogs’ food. For dog owners, check out the equine section of the Vita-Flex Web site, where the pricing is more attractive than for most “pet” supplements.

When determining the cost of glucosamine supplements, consider the following:

• Compare the cost per daily dosage of each product, not the cost per ounce or tablet. The milligrams of glucosamine per ounce or per pill vary by product, so calculate the cost of the appropriate daily dosage of each product for your dog’s weight to find the true cost of administering it.

• Make sure the dosage amount you must give your dog each day is reasonable. Some products require giving a large dog as many as eight capsules 2-3 times a day. Who wants to do that?

For Dash and her younger brother, I currently use Platinum Performance Plus as their daily, all-purpose supplement. A high quality wellness and performance product, the Plus formula adds a joint support component in the form of glucosamine sulfate at 500 mg per tablespoon.

Other reputable GAG products are Drs. Foster & Smith’s “Joint Care”, which adds only vitamin C to its glucosamine-chondroitin formula, and the products sold by Bronson Vitamins because of their straightforward dosage statements.

Fifteen-pound Dash’s daily dose of Platinum Performance Plus (about two teaspoons) contains about 330 mg of glucosamine. I plan to either supplement this dosage with Vita-Flex to adjust her to the daily 500 mg level recommended by Dr. Bessent, or use the original Platinum Performance formula and add all of her glucosamine from Vita-Flex.

Lorie Long is a freelance writer and agility competitor from Virginia.

Skunk Odor Removal Products

By
Nancy Kerns
-
1

[Updated August 16, 2018]

SKUNK SPRAY DEODORIZERS: OVERVIEW

1. If you live in an area where skunks are a hazard, buy and keep Nature’s Miracle Skunk Odor Remover on hand. It’s amazing.

2. For dealing with other odors, dog-related or not, give Petrotech Odor Eliminator a try.

We had not planned to review products that promise to remove skunk scent, but then, are skunk/dog conflicts ever planned? No, this was an emergency, and we dealt with it by running out the door to our local pet supply store and buying every odor-eliminating product on the shelves.

As I mentioned in my editorial, I promised my brother that I would dog-sit his darling Hannah while he and his girlfriend vacationed. It became quickly apparent to me that Hannah had been more closely acquainted with a skunk than is wise. My brother hadn’t mentioned this to me, probably because he is completely without a sense of smell – a result, our mother always told us, of his many ear infections as a baby.

I work at home, in a little office built into the ground-floor basement. It works for me and the many test and model dogs who come and go, because they can lay around my feet or zip out into the backyard for a wild romp any time they like. I leave the door open when I’m working, but after Hannah got here, I had to open the window and put a big fan in it, too. Pee-yew!

Keith had brought one of Hannah’s beds with her, but it was too stinky to bring inside. I hung it over a fence in my backyard to deal with later. Unfortunately, because Hannah had arrived at night, I couldn’t do anything about her stench until the next morning.

How I Tested The De-Skunking Products I Found

I’ve read accounts of double-blind lab tests of odor-removing products, complete with control groups. My test was going to be much less controlled! I had just one stinky dog on my hands, not a whole pack of them! Plus, there were only three products indicated for removing skunk-smell on the shelves of a local PETCO; I bought all three.

As I rode my bike back from PETCO, I made my plan. I would put each product on one third of Hannah – front, middle, and back end. I’d delineate the lines of demarcation with a Sharpie permanent marker. And I’d enlist my family and the neighbors who were still speaking to me to come over and “Smell the dog now!”

skunk deodorizing sprays

I changed my plan slightly when the first product I opened turned out to smell disgusting – easily as repulsive as the skunk. I put the top back on, and quickly checked the scent of the other two; they were inoffensive. I changed my battle plan to include just the other two products, one for Hannah’s front half and one for the back half.

So, I didn’t test De-Skunk, the product that smelled bad. To be specific, it has a super strong, sickly sweet, but bad chemical smell. The directions indicate that the product is supposed to be used promptly after the dog has been sprayed by a skunk – a caveat not made by the makers of the other products I tested. The dog is wetted with warm water, and then the thick, goopy product is applied much like shampoo. The directions suggest leaving it on for at least three to five minutes, rinsing well, and then repeating the process at least once more, or until the skunk odor is gone.

The label doesn’t explain how it works, although a review of the ingredients (water, nonionic emulsifiers, citric acid, propylene glycol, pine oil extract, isoparafinic solvent, polyquaternium 10, fragrance) suggests it acts as a solvent, deodorant, and astringent.

The maker, Synergy Labs of Fort Lauderdale, Florida, suggests following De-Skunk with a shampoo and conditioner. It’s just as well I skipped testing this product, because the next two products I used were much simpler.

Enzyme-Based Odor Removers for Skunk Spray

We’ve found enzyme-based odor removers to be safe, nontoxic, and effective for use in removing pet “accidents.” For skunk scent, the products are applied directly to the dog’s dry coat and allowed to dry.

The most effective enzyme-based product I tried, hands-down, was Nature’s Miracle Skunk Odor Remover. I used it on Hannah’s back half, pouring the clear, watery liquid directly from the bottle onto her coat and rubbing it in well with my hands.

Nature’s Miracle smells like rubbing alcohol, not surprisingly, since this is its second ingredient (after water). It also has a slight perfumey fragrance. The only other ingredients are “Nature’s Enzymes,” and natural citrus scent. It was easy to saturate Hannah’s coat with the product, and despite the alcohol, it didn’t sting my eyes or skin, nor did it seem to bother Hannah in any way.

After Hannah dried, I could not detect any skunk odor on her back half at all. That is a miracle! She smelled like a fairly clean dog, and her coat was nice and soft.

On Hannah’s front half, I used a product called Pet Odor Eliminator, made by Beaumont Products, Inc., of Kennesaw, Georgia. It came in a spray bottle, which made it easy to apply around her face (holding the bottle very close to her skin, to avoid getting into her eyes). But to really wet her shoulders and chest, I took the top off and poured the watery liquid over her, while rubbing it into her coat.

I was not crazy about the smell of Pet Odor Eliminator, which has a stronger perfumey odor than the Nature’s Miracle product. However, this odor faded quite a bit as Hannah dried, along with the skunk odor, which was vastly reduced – but not completely gone.

I asked three “sniff test” volunteers which half of Hannah smelled better, and each said her back half was odorless, but that they could still detect faint traces of skunk odor on her front half. Still, it was an amazing improvement. You had to really lean into Hannah’s fur and sniff hard to pick up the scent, whereas before she was treated, you could smell her from 20 feet away.

The label of this product does not list all its ingredients, only its active ingredient, “100% natural vegetable enzyme complex.”

Further Deodorization

That night, as usual, Hannah slept in my office, and when I entered it the next morning, it still smelled a little. It was probably from two nights before, when she was still covered in skunk and got the scent on the dog bed that was in there.

That morning, I happened to go to my local health food store, looking for a dog shampoo that I love the smell of (CloudStar’s Buddy Wash). On the shelf next to the shampoo was another enzymatic odor-removing product, PureAyre Odor Eliminator. Its label promised it eliminated all odors instantly, even skunk, and was child- and pet-safe. Its ingredients were listed as distilled water and plant enzymes. I bought it, too.

Back home, I decided to use this product on the bed that Hannah had slept on the night she was still skunky. I sprayed a generous amount on the bed, and rubbed it well into the fabric with my fingers. This product has a mild peppermint fragrance, and it definitely improved the smell of the dog bed once it dried.

I kept sniffing Hannah, too. Back end? Odorless. Front end? Well, still a little skunky. I decided to soak her front end again, this time with the PureAyre product.

Interestingly, when I first sprayed the watery liquid on her, it seemed to bring on the skunk smell again, and this persisted until she was completely dry. Then she smelled fine, skunk-free.

Of course, this was a slightly less vigorous test of the product than the other two received, since Hannah had already been treated once, and the bed received only a secondhand skunking. Still, I suspect that all three enzyme-based products are fairly similarly effective, with Nature’s Miracle having an edge over the other two for some reason. Nature’s Miracle is also the only product of the four I bought that says on the label, “Guaranteed or your money back!” You gotta love that.

Another Product That Kills Odor

At this point, I remembered that someone had sent me an odor-removing product once upon a time (I hadn’t been able to think through the skunk smell!). After some digging, I found the product, Petrotech Odor Eliminator, distributed by SeaYu Enterprises, Inc., of San Francisco.

This product is radically different from the others I tried. SeaYu’s Web site explains, “When Petrotech is sprayed on an odor source, it shears the hydrocarbon chain (of the odor source) and then encapsulates the odor source; this immediately eliminates the odor. Once Petrotech encapsulates the odor source, it becomes a microbial-food source for the indigenous bacteria in the environment, which accelerates the biodegradability of the odor source.”

I still have no clue as to what is in it. But it’s supposed to be safe for pets and humans, and the label indicates, “Satisfaction guaranteed! Or your money back!” And it says it works on skunk spray.

Only Hannah’s bed from home was still skunky. I sprayed its cover fairly liberally, and rubbed the soapy-feeling liquid into the fabric with my hands. As the bed dried, I also misted my office carpet. Fairly quickly, my office actually did smell less . . . doggie.

Now I was intrigued. I walked around my house, spraying smelly things: a pair of running shoes, the inside of my car, the compost bucket, and even the outdoor garbage can. Each thing I misted immediately smelled less.

Incredulous, I went back to Hannah’s bed. Whoops! It still smelled skunky, although much less so. SeaYu’s Web site explains, “In order to eliminate the odor, Petrotech must be sprayed directly onto the odor source.” My theory is that the skunk smell on the bed from home had saturated not just the cover, but the whole bed.

I didn’t experiment further, however, leaving the bed outside for the rest of Hannah’s stay. Given its other successes, I’ll try Petrotech for other uses, and will report on it more thoroughly when we cover general-purpose pet odor removers.

Letters: 08/04

By
Nancy Kerns
-
0

I wanted to respond to Pat Miller’s excellent article on idiopathic rage syndrome (“Rage Without Reason,” WDJ July 2004).

While most cases of idiopathic rage syndrome are truly “idiopathic,” some can actually be caused by the early stages of autoimmune thyroiditis. Most veterinarians and even many animal behaviorists may be unaware that this form of thyroiditis can appear as early as puberty or in the first one to two years of life, rather than as the commonly seen mid-life onset of classical clinical signs of hypothyroidism.

In fact, sudden unprovoked rage syndrome of an intermittent nature can be the hallmark of early thyroiditis, and is often undiagnosed because the veterinarian seeing the patient is unaware of the need to screen for thyroid dysfunction or doesn’t perform the requisite complete thyroid anti-body profile.

An association has recently been established between aberrant behavior and thyroid dysfunction in the dog. Typical clinical signs include unprovoked aggression toward other animals and/or people, sudden onset of a seizure disorder in adulthood, disorientations, moodiness, erratic temperament, periods of hyperactivity, hypoattentiveness, depression, fearfulness and phobias, anxiety, submissiveness, passivity, compulsiveness, and irritability. After the episodes, most of the animals appeared to be coming out of a trancelike state, and seemed unaware of their previous behavior.

The typical history starts out with a quiet, well-mannered, and sweet-natured puppy or young adult dog. The animal was outgoing, attended training classes for obedience, working, or dog show events, and came from a reputable breeder whose kennel has had no prior history of producing animals with behavioral problems. At the onset of puberty or thereafter, however, sudden changes in personality are observed. Typical signs can be incessant whining, nervousness, schizoid behavior, fear in the presence of strangers, hyperventilating and undue sweating, disorientation, and failure to be attentive. These changes can progress to sudden unprovoked aggressiveness in unfamiliar situations with other animals, people, and especially with children.

Three recent cases involved young dogs referred for sudden onset rage syndrome shortly after puberty. These dogs (Siberian Husky, Bull terrier, Saint Bernard-cross) were found to have early onset autoimmune thyroiditis, which was rapidly responsive to thyroid supplementation as their behaviors reverted to those of sociable, outgoing family companions.

Collectively, these findings confirm the importance of including a complete thyroid antibody profile as part of the laboratory and clinical work up of any behavioral case.

-W. Jean Dodds, DVM
President, Hemopet
Santa Monica, CA

———-

Regarding Pat Miller’s article about idiopathic aggression: This article was quite timely, as several dog-related e-mail groups have recently circulated the story of a dog who became suddenly and unpredictably aggressive. The cause was attributed to Lyme’s disease.

Although it’s true that Lyme’s disease would be considered a rather rare cause of aggression, it should be on the list of differential diagnoses to consider in the case of a sudden and difficult-to-explain onset of aggression. Also included on this list should be rabies (!), seizures (epilepsy), and hypo-thyroidism. Other metabolic imbalances might also cause unusual signs such as aggression.

My point is that it’s extremely important to rule out medical causes for any behavioral problem prior to consulting a “positive trainer/behavior consultant who can give you a more educated analysis of your dog’s aggression.” I don’t discount the value of a skilled and experienced behavior professional, but no amount of behavioral modification is going to help an animal whose underlying cause is medical. I felt this point wasn’t adequately addressed.

I did, however, appreciate the side box on the evolving vocabulary of aggression. This topic, especially the evolving theories regarding dominance aggression, is something I’d be interested in reading a lot more about!

-J.C. Burcham, DVM
Olathe, KS

 

Our thanks to Dr. Dodds and Dr. Burcham for their insights; we apologize for omitting the recommendation to have a veterinarian examine any dog who displays unprovoked aggression. This has long been our suggestion when faced with ANY abnormal behavior.

Download the Full August 2004 Issue PDF

By
Nancy Kerns
-
0

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No Nose, Good News

By
Nancy Kerns
-
0

How often do I get the opportunity to unabashedly BRAG?! Not too often, so I’ll make the best of it: In June, I was thrilled to learn that the Chicago Tribune named WDJ to its annual list of “50 Best Magazines” in the U.S. And, they ranked us at #11, just after Consumer Reports and just before Time. I still feel tingly!

I’m immensely grateful for the recognition and attention, and hopeful that the exposure might help more dog owners find their way to WDJ – and all the humane, effective, and even potentially lifesaving health and training tips provided by our expert contributors. Thank you, Chicago!

Fortunately, I was quickly brought back to earth by the very stuff WDJ is rooted in: dog problems that needed solving. This came in a couple of forms: a big red one and a smaller yellow one.

I sort of kidnapped Cody, a Lab-mix who belongs to a friend’s family. The family, I learned, was in the middle of an emotional debate over the young dog’s fate, with the dad threatening to send Cody to the pound and the mom and kids clamoring for clemency. I offered to take Cody home for an evaluation and some training – really, a cooling-off period for the combatants.

It turns out, I’m siding with mom and the kids. Cody is a lovely, sweet boy in desperate need of direction and approval. He’s learning a lot, and thriving on all the attention and company – and it’s going to be really hard to send him home.

He does have some behavior issues to sort out. Not surprisingly, he’s suspicious and wary of men. He expresses his anxiousness in their presence by putting all his hair straight up and growling in a most fearsome manner – while shrinking and ducking away in fear. So, daily, I’m practicing the counter-conditioning and desensitization program described by Pat Miller on page 13 of this issue. We go out looking for men, and I toss Cody treats as they walk by. Quite a thrill for a married woman!

Then Hannah, my brother’s dog, came to stay for a week while my brother went on vacation with his girlfriend. Hannah’s arrival was not a surprise, but the intense skunk smell she was wrapped in sure was. It was a surprise, too, to Keith’s new girl-friend, who rode in the car with Hannah for the hour’s drive between Keith’s picking her up at the airport and their arrival at my house.

Why didn’t he warn us? My brother has NO sense of smell – none.

Well, it was a good opportunity for me to test some commercial skunk odor removers (results in this issue). And, as it turned out, it was a good “good sport” test of the girlfriend, too. She didn’t say a word to him about Hannah’s stench – and she did smell it. She passes, with flying colors!

 

-Nancy Kerns

Understanding Canine Allergies

By
Randy Kidd
-
4
Canine allergies can cause a variety of skin conditions and other ailments.

Over the years I have treated literally thousands of animal patients for allergic problems, using both Western and alternative medicine methods. I have a multi-tome library of books devoted to the subject of allergies, and my allergy file-folders bulge with articles from dozens of professional journals, magazines, and Web sites.

Still, I am searching for answers.

The more I think I know about allergies, the more I read and learn about them, the more confused I get. Nothing I have tried therapeutically works with all my patients; some patients get better with hardly any effort on my part; others finally respond to my third or fourth treatment protocol (or 9th or 10th); and some never respond, no matter what I try.

Often, as I try to figure out how to give some semblance of relief for a dog’s itches, it feels like the three of us – the dog, the dog’s caretaker, and I – are stuck in the midst of a huge maze, blindly trying to find our way to the outside. And, while there may be some general rules that can help get us through the majority of the mazes (see sidebar), each and every allergic patient has its own unique construct, and the pathway through the maze is likely to be very different for every individual.

The following pathway in this article is meant to help you navigate most cases of allergy, most of the time.

How Allergy Manifests in Dogs

Understanding Canine Allergies

Allergies can present as a variety of symptoms, but in the dog, the most common symptoms occur as skin irritations: itching, scratching, digging, and gnawing at the skin, often to the point of creating open raw wounds over large areas of the body. Chronic ear infections are another common symptom. Occasionally dogs will have respiratory symptoms such as coughing, sneezing, or a nasal or ocular discharge. Food allergies may produce, in addition to skin irritations, vomiting and/or diarrhea. Symptoms can extend to include epileptiform seizures, and many holistic vets feel that allergies can ultimately result in chronic diseases such as arthritis, asthma, chronic urinary tract infections, inflammatory bowel disease, etc.

Interestingly, whereas dogs typically have itchy skin symptoms, a human allergic response usually produces respiratory symptoms. An estimated 10 percent of the human population may be allergic to animals (the rate for being allergic to cats is about twice as high as for dogs); a higher rate of 20 to 30 percent of individuals with asthma have pet allergies.

When Dogs’ Immune Systems Run Amok

It has been estimated that more than 70 percent of all skin conditions in dogs are allergy-related, but every allergic patient presents a unique diagnostic challenge, and merely deciding which diagnostic tests should be run can be the most challenging of all our decisions. The following suggestions will help you determine which of the myriad causes might be responsible for your dog’s allergies. From this information, you and your holistic veterinarian can determine the best therapeutic action(s) to take.

In a nutshell, allergy is the result of an immune system that has, for one reason or another, turned against the self. Sometimes, this reaction seems instantaneous, as when a dog receives a food that contains something to which he is allergic, and he breaks out almost immediately with rashy, itchy skin. But frequently, allergies may become made evident in your dog only after “gestating” for a long period, as long as four years or more. It can thus be almost impossible to pinpoint the exact cause that has instigated the symptoms.

We know there is a genetically derived propensity for developing allergies, but of course, there’s not much you can do about this after the fact, after your dog’s allergies have already begun to surface. About all we can do is to support breeders who select individuals for immune competence, Zheng Chi vigor, healthy vital force, or for any of the health-giving attributes necessary for long-term, holistic well-being.

First Steps to Relieving Pet Allergies

Make fleas flee. Most studies indicate that fleas are the number one cause of contact dermatitis in the canine species. So, it makes sense to look for fleas first, and if they are present, to use a low-toxic way to lower their numbers in the environment – in as natural a way as is possible. (See “Eliminate Fleas Without Poisons,” WDJ March 2002.)

However, if your dog is highly allergic to fleas, you may not have the luxury of taking your time to reduce flea populations. In these cases, a careful, limited use of the highly effective (and sometimes dangerous) “spot-on” pesticides may be necessary to quickly eliminate the flea population. This can give you time to improve his overall health and ability to withstand an occasional flea bite. Of course, a blind and sole reliance on pesticides is not recommended (see “Are Spot-On Flea Killers Safe?” February 2002).

Treat skin lesions. A holistic approach to allergies understands that external, skin symptoms are merely an outer manifestation of something going wrong inside. This is contrary to the conventional Western medicine way of thinking in which, often, only the symptoms are attacked, with little or no concern for the underlying cause.

That said, you must tend to the skin lesions, possibly with topical medications and/or soothing baths, as you work your way through the diagnostic and medical challenges of the allergic case. My favorite topical medicine for almost any skin lesion is to apply a spritz made from a tea brewed from calendula flowers (Calendula officinalis), several times a day, directly to the lesion. Other herbs such as chamomile (Matricaria chamomilla or Anthemus nobile), yarrow (Achillea millefolium), lavender (Lavendula officinalis), and mullein (Verbascum thapsus) may also be added to the herbal brew.

In every case of allergy, I initiate immediate treatment of the dog’s gastrointestinal system. As we heal the gut, we in turn enhance the immune system – recognizing that a good portion of the immune system is located in the gut wall. A balanced immune system helps the dog deal naturally with any allergen that may be causing allergic reactions, whether this allergen is contact (skin-induced), inhalant (respiratory induced), or gut induced (food allergy). It’s been my experience that if we can get the immune system balanced, most, if not all allergies, tend to go away.

Further, though I have not seen any studies that confirm this, experience has proven to me (and many other veterinarians) that some animals are allergic to the preservatives, artificial flavors, and/or artificial colorings found in some commercial dog foods. Oftentimes a simple upgrade to a higher quality diet without artificial ingredients eliminates the allergies.

I treat this “gut-check” step much as I would a confirmed case of Inflammatory Bowel Disease. Here’s where your holistic practitioner can help devise a protocol that is definitive for your dog. My general approach is to detoxify first, probably with a mild herbal laxative such as aloe (Aloe vera), or senna (Cassia spp.). Then I add herbal liver helpers such as dandelion root (Taraxacum officinale), and milk thistle seeds (Silybum marianum). I’ll also try to return the gut to a normal flora by adding beneficial bugs (Lactobacillus and other so-called probiotics) and increasing the dietary fiber.

As I am working with the gut, I will try to enhance a balanced immune system using herbs such as echinacea (Echinacea spp.) or Siberian ginseng (Eleutherococcus senticosus). Immune enhancing supplements including vitamins C and A and zinc may also be helpful.

Essential fatty acids (EFAs) are a group of chemicals found in some foods, and some of them can be converted into beneficial prostaglandins. At the top of the beneficial list are the Omega-3 EFAs found in flax oil and deep sea fish such as salmon, haddock, and cod, and gamma-linolenic acid (GLA), found in evening primrose, borage, and black currant seed oil. A combination of the Omega-3s and GLA seems to have the most potent effect.

A natural anti-inflammatory or cortisone-like herb such as licorice root (Glyceriza glabra) may enhance the adrenal gland and also take some of the itch away.

Many of the holistic vets I know have found that an addition of some raw meat to the diet often alleviates the symptoms. Interestingly, in what may seem to be a paradoxical finding, I’ve had several animals who tested as allergic to a specific meat eliminate their allergies when we’ve added that particular meat (raw) to the diet. Note that these have all been animals that were treated beforehand to enhance their gut immunity, with the above inflammatory bowel protocol.

Realize that in this protocol we are simply upgrading the diet and adding anti-inflammatory and immune-enhancing nutrients. This is not a “food elimination” test for food allergies – a test that we might consider down the road, if these first steps don’t seem to work. A true food elimination diet is more complex than this and will take at least two months of a strict dietary regime before we’ll have a diagnostic answer. (See sidebar.)

Understanding Canine Allergies

There is a certain amount of discipline involved with setting aside the obvious skin condition for a time while you change diets and add supplements, while you begin to think in terms of whole-body, long-term effects of whatever therapies you will use in the future. Not everyone has the time, patience, or forbearance to go through a holistic protocol for treating allergies, and it’s a waste of time for everyone concerned to try to force a holistic protocol on someone who only wants a quick fix.

The Value and Limits of Allergy Testing Dogs

If we don’t have much luck alleviating symptoms after we’ve eliminated the fleas and changed the diet, then we are confronted with further challenges.

A dog (or any animal) may become allergic to almost any substance that exists in the real world. Furthermore, there are many diseases – external parasites, fungal or bacterial infections, hormonal conditions (hypothyroidism in particular), to name just a few – that create very similar symptoms to those caused by allergies.

The challenge is to figure out which substance, bug, or agent is creating the allergic response – and we may not be able to determine that substance. Not ever. Or we may be lucky and find a diagnostic test that elucidates the one cause of the allergy, and all we have to do is either eliminate this one cause from the dog’s environment or create an inner environment whereby he can counter the cause.

Using the Western medicine approach, we might decide that a complete blood count and blood chemistry would narrow our list of possible causes. A thyroid panel might also be helpful, but remember that animals will often test low for thyroxin (T-4) whenever they are sick (as with allergies). So, a low T-4 may only indicate an animal suffering from allergies; not an animal that is hypothyroid.

Oftentimes these tests are more helpful for eliminating potential causes than they are for creating a specific diagnosis. And my usual caveat for testing definitely applies here: “Only do those diagnostic tests that, depending on their outcome, will change your treatment protocol. To do otherwise is a waste of time and money.”

There are two basic types of allergy testing for specific causes: skin and blood testing. The skin test injects small amounts of potential antigens into the skin, and the practitioner looks for an excess reaction around the injection site – indicating a possible allergy to the injected substance. Various blood tests, such as the RAST (radioallergosorbent) and ELISA (enzyme-linked immunosorbent assay) tests, check for antigen-induced antibodies in the dog’s blood. If we can identify a specific allergen from the testing, we can then desensitize the patient by injecting small doses of the allergen over a period of time – often extending over several years.

However, all of these tests have problems inherent in their design, and depending on their personal experiences with them, practitioners either “swear at” or “swear by” them. Part of the problem is that the tests are not very accurate; false positives and false negatives are common. Furthermore, and this may be an even worse problem, when we do determine what substance a dog is allergic to, we may conclude that we won’t be able to eliminate or reduce his exposure to the allergen anyway.

For example, say that tests indicate that your dog is allergic to house dust and the oak trees that grow naturally all around your neighborhood. To avoid all of this dog’s allergies, we’d have to sterilize the house and deforest the town – not practical solutions!

The Pathway of Allergy Treatments

Even the pathway we choose to take when we decide which medicine to use is not an easy or clear-cut choice. Whatever medical system we opt to use, we need to understand that each method has its way of looking at health and disease (its diagnostic and treatment paradigms) and its own set of advantages and disadvantages when treating allergies.

Conventional Western medicine’s paradigm is to confront the disease with biochemical methods (think war metaphors) and to palliate the symptoms so the patient looks well on the surface. Western medicine’s most common therapy for allergies is to use either one of the glucocorticoids or an antihistamine. Glucocorticoids have a litany of adverse side effects (see “Use Corticosteroids With Caution,” WDJ July 2004), especially when used for prolonged periods, and antihistamines can adversely affect a number of body systems in many patients. On the other hand, both these drug categories are fast-acting and are powerful at palliating the itchy skin symptoms.

There has been a recent spate of newer, non-steroidal drugs on the market. Most of these are simply another way to shut down the immune system’s overreaction. The problem is, of course, that no matter how we do it, when we shut down the immune system (rather than attempting to balance or enhance its ability as we do with alternative medicines), we have opened the door to infections and other complications of a nonfunctioning immune system.

Atopica (cyclosporine), a drug sold by Novartis, is an interesting example. Its package insert lists the following adverse reactions: vomiting (30.9 percent); diarrhea (20 percent); persistent otitis externa (6.8 percent); urinary tract infection (3.8 percent); gingival hyperplasia (2.3 percent); and lymphadenopathy (2.3 percent). Contra-indications include “dogs with a history of malignant neoplasia” (hmm), and according to the insert: “killed vaccines are recommended for dogs receiving Atopica because the impact of cyclosporine on the immune response to modified live vaccines is unknown . . .” (double hmmm).

Way back in the 1980s, cyclosporine was used as immunosuppressive therapy to eliminate organ rejection during organ transplantation. Its mechanism of action seems to be to suppress the activation of CD4 Helper T (lymphocyte) cells – that is, it has a mechanism of action different from the glucocorticoids, but with basically the same result: immunosuppression.

Then there are the alternative and complementary pathways.

Homeopathy works with the patient’s inner vital force, to enhance the ability to dispel any disease, including allergies. Homeopathic medicine is typically slow to work, and (at least in my experience when treating allergies) it is critical to find the specifically appropriate remedy that matches the totality of symptoms (“classical homeopathy”) – a process that can take many months.

Homeopathic remedies may cause aggravations, and unfortunately the aggravations often take on the appearance of a recurrence of the skin symptoms. It can be difficult to differentiate between a homeopathic aggravation (a good sign) and a worsening of the condition. Homeopathic cures are typically whole-body and long-lasting, although many of my patients have needed to re-dose their remedy every few months or so.

Acupuncture works by balancing the patient’s chi. In the case of allergies, the chi is overly active and needs to be calmed. “Zheng chi,” as the corollary to the immune system, is also enhanced.

In my experience, acupuncture almost always takes at least four or five treatments before we can determine its effectiveness, and the total number of treatments may reach a dozen or more. Most of my allergy patients need to return for follow-up acupuncture treatments on a periodic basis, usually a few times a year.

Although there are times when a simple herbal remedy is exactly what an allergic patient needs, I often find herbal remedies to be very mild in action and slow to work. I find them most helpful in enhancing and balancing specific organ systems that are under duress from the allergic condition.

I’ve seen many cases of localized skin lesions that have responded favorably and rapidly to chiropractic. Presumably, when a vertebra is out of alignment, the irritation to the associated nerve endings sends a sensation to the skin area that the dog interprets as, “Dang, that itches!” And so he scratches and bites until the chiropractic treatment readjusts the vertebral alignment.

Understanding Canine Allergies

There are a number of other therapies that occasionally surprise me with their effectiveness, especially flower essences, which work to balance the emotions, and aromatherapy, which works at a subtle inner-brain level. There are several methods that utilize various forms of applied kinesiology as an aid to both diagnosis and treatment. (Applied kinesiology tests the body’s reaction to a substance to determine if the subject is allergic to it, and it can also be used to “test” for the expected effectiveness of treatment preparations.)

Perhaps the most important concept to be clear with here is that Western medicine’s way of diagnosis (and its philosophy of treatment) is very different from alternative medicine’s methods. When a Western-trained practitioner sees an allergic animal, he immediately visualizes the biochemical symbols that are running amok, and his plan of attack is to use chemicals to block the out-of-control biochemical reactions.

An acupuncturist, on the other hand, might see an allergic response as an imbalance of energy or chi, specifically “Zheng chi” or “Righteous chi,” the Traditional Chinese Medicine correlate to the immune system.

Part of the acupuncturist’s thera-peutic approach, then, will be to enhance the Zheng chi, the life force that maintains homeodynamic bal-ance and produces optimal health.

Canine Allergy Treatment Summary

My general treatment protocol for allergies, then, would look something like this:

• Reduce the flea populations on and around the dog.

• Reduce the potential for food allergies by improving the quality of the food, and at the same time . . .

• Enhance the immune system with high-quality food and nutritional supplements.

• Don’t challenge the immune system excessively – with any vaccines that are less than absolutely necessary, for example.

• Use natural anti-inflammatory herbs and supplements.

• Consider acupuncture or homeopathy for chronic and/or severe cases (NOTE: I’ve often been disappointed when using these two in combination for treating allergies).

• Reduce environmental causes of allergy – airborne smoke and dust particles, for example. Air quality is important in preventing the passage of allergens through the air. If your dog (or anyone else in the family) has allergies, consider using a quality household air filter.

• Whenever possible, use methods that enhance the animal’s innate ability to balance its own immune system and use methods that are the most natural and have the least potential for toxicity. However . . .

• If early therapeutic attempts are not productive, consider testing for specific allergens (using skin or blood tests or a food elimination diet) if other methods do not seem to be working.

• There may come a time when you may need to resort to medicines we know to be toxic and/or medicines that shut down the immune system rather than helping to balance it. Only you can decide when your dog and even you cannot take any more itching and scratching, and the loss of hair, skin, weight, sleep, and/or sanity that often accompanies severe allergy.

It has been said that sometimes, along our journey to wellness, we need to see and feel how it looks and feels to be well, so we can try to get back to this place. Sometimes I get the feeling that dogs affected with allergies – after perhaps months of itching and scratching, of evident pain and sleep loss – have forgotten how it feels to be well. With these cases, I think it is important to let them experience wellness, however briefly, even if it means that we may have to resort to types of medications such as glucocorticoids and/or antihistamines that I would ultimately like to avoid.

I think we need to approach allergies (and other chronic diseases) with an under-standing that the treatment protocol we choose will likely require time, effort, and discipline; that we may never be able to come up with a treatment regime using a linear-logical approach; and that, in the end, we may not truly find our way out of the maze of allergies, no matter what we try.

Dr. Randy Kidd earned his DVM degree from Ohio State University and his Ph.D. in Pathology/Clinical Pathology from Kansas State University. A past president of the American Holistic Veterinary Medical Association, he’s author of Dr. Kidd’s Guide to Herbal Dog Care, and Dr. Kidd’s Guide to Herbal Cat Care.

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Nancy Kerns
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