The Carlisle Mosquito Online

Friday, March 23, 2007


Pet food recall

Thirty-seven brands of cat food and 42 brands of dog food have been recalled this week. A list of these foods can be found at

The affected foods are chunks and gravy types of diets; these come in both cans and pouches. To date, there is no known problem with any dry food formulations. More research is being done to determine why these foods are making animals sick and in some cases causing death.We expect more in-formation in the coming days.

Speculation on cause

Right now the speculation is that wheat gluten in the food may be the causative agent. This is a binder, thickener and protein source, and because the manufacturer had recently changed suppliers, it is in question. Other toxins of suspicion are aflatoxin and heavy metals.

The tainted food appears to be causing acute kidney failure. According to toxicologists at Iowa State University College of Veterinary Medicine, "Autopsy and microscopic examination of tissues from affected animals indicate acute renal toxicosis including the presence of birefringent crystals, as well as other crystal formations. The effects are consistent with exposure to ethylene glycol and derivatives, mycotoxins, ochratoxin and citrinin, some heavy metals or Vitamin D toxicity. At the present time the exact cause of this problem is not yet known. Investigations are continuing."

Signs of kidney failure

Signs of kidney failure in dogs and cats are increased thirst, increased urination, lethargy, decreased appetite and vomiting. Carlisle pet owners should check their pets' food supply to make sure they are not feeding any of the recalled diets. If you find that you are feeding one of these diets, stop immediately and call your veterinarian for advice. Your veterinarian can order laboratory tests to screen your cat or dog for kidney failure. Regular blood screening is already recommended as a part of good, regular veterinary care for your pet, especially if your cat or dog is over six years of age.

Dr. Rule is a Carlisle resident and a veterinarian at Countryside Veterinary Hospital. She advocates regular laboratory screening for patients as part of regular preventative care. She can be contacted at

2007 The Carlisle Mosquito