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Ask Dr. Michael Salkin Your Own Question
Dr. Michael Salkin
Dr. Michael Salkin, Veterinarian
Category: Dog Veterinary
Satisfied Customers: 29710
Experience:  University of California at Davis graduate veterinarian with 45 years of experience
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We have a 12 year old male pit . Last week he developed

Customer Question

We have a 12 year old male pit bull. Last week he developed a case of gastroenteritis from eating compost that was newly worked into our garden-no pesticides or bones. He has healed except for the continued need to consume stool from our female pit who is 16. Is this a lack of nutrients or from another cause. He is allergic to chicken and chicken by-products and is generally a picky eater. Usually will not eat the same meal (dry dog food mixed with a little canned dog food) more than two days. He is fed only dry food three days in a row and then one day with the mixture of canned and dry.
Thank you, Diane
Submitted: 2 years ago.
Category: Dog Veterinary
Expert:  Dr. Michael Salkin replied 2 years ago.
Aloha! You're speaking to Dr. Michael Salkin
Coprophagia (stool eating) is seen more frequently in puppies but most eventually outgrow it. Puppies may indulge in coprophagia as harmless investigative or playful behavior and owners must be cautious not to inadvertently reinforce the behavior by giving the puppy additional attention when it consumes feces. Pets that are underfed or placed on an overly restricted diet may have a voracious appetite which may also include coprophagia. Pets that have been overfed, and those with gastrointestinal conditions such as malabsorption or trypsin deficiencies may have higher amounts of undigested ingredients remaining in the feces. These feces might then be palatable enough to appeal to some dogs. Similarly, horse and cat feces can be particularly appealing to some dogs. It is commonly thought that inadequate exercise and environmental stimulation may make a dog more likely to consume its own feces.
The ultimate cause of coprophagia in adult dogs has always been elusive. Some feel that the problem is behavioral, while others are convinced there is an organic reason. Soft stools, incomplete digestion of food within the stools, evidence of steatorrhea (fat in the feces), increased stool frequency or volume, or a voracious appetite might indicate a problem with maldigestion or malabsorption. Other gastrointestinal disturbances such as inflammatory bowel disease, systemic health problems including renal failure and endocrinopathies, medications such as glucocorticoids (prednisone, e.g.), central nervous system diseases or any disease process that causes polyphagia (increased hunger) might lead to picas (eating non-digestibles) and coprophagia. Calorie-restricted diets, especially those that are not balanced or do not adequately satiate the dog may also lead to picas including coprophagia. Recent research has suggested that there may indeed be a medical component to the problem in some cases. In a small study of nine coprophagic dogs, all had at least one laboratory abnormality that could explain the problem. The laboratory profile included a complete blood count, complete biochemical profile, serum amylase level, serum lipase level lipase, trypsin-like immunoreactivity (TLI), serum vitamin B12 level, serum folate level, fecal fat, fecal trypsin, fecal muscle fiber, trace minerals including zinc, selenium, copper, iron, magnesium and boron, and fecal sedimentation (an ova and parasite exam). Most had borderline to low TLI (suggesting pancreatic exocrine enzyme deficiency - a lack of digestive enzymes being produced by the pancreas) while others had abnormalities in folate, Vitamin B12 or other nutrients. As you can see, it might be wise to have blood work performed on Buddy. His vet can determine if all the above is necessary. For instance, checking trace mineral blood levels might be waived if Buddy is eating a high quality senior diet.
I'm concerned that Buddy is such a picky eater as well. This can be a hint for underlying disease in the gastrointestinal tract or involving major organs such as chronic pancreatitis or hepatitis for which he can be tested. A hydrolyzed protein diet can be fed in order to avoid all possible offending proteins - not just chicken. The best hydrolyzed protein diets are available from his vet. We use these diets to test for food intolerance. Proteins in the diet are hydrolyzed - chemically altered to the point that Buddy's immune system can't recognize them as something to be allergic to.
Please respond with further questions or concerns if you wish.