Dr. Ruth posted this on the FHL today, 2/27/14. If you are aware of Dr. Ruth Heller. She is a Corenell University (Vet School) graduate who practices in PA. She is also a breeder and show-woman of ferrets. She sees a lot of ferrets in her practice and shares information with ferret owners on a number of forums. If you are feeding Zupreme grain free ferret food, please, please re-think your food choice. I changed to this food ad had three ferrets off to the vet. I reviewed the variables that had changed in my business of ferrets and the food was the issue. At the time, my 8 yo Jillie, my ferret love, was diagnosed with kidney failure! I made the food change and added some supplements and otehr healign support an she lived to be a bit over 9. So, the point here is if you make the change soon enough you can keep thim alive! here is what Dr. Ruth found in a recent surgery. Ferret friends: Today I removed over a hundred bladder stones from a three and a half year old ferret, fortunately before any of them moved into his urethra and caused a blockage. Guess what he'd been eating? If your answer was Zupreem Grain-free, you've been paying attention. DO NOT feed Zupreem Grain-free ferret food to your ferrets, please. It has been associated with bladder stone development in many ferrets, and while the cause is not proven, many suspect it to be due to the pea protein in the food. Dr. Ruth Cathy Ryan Today is the best day to do a good deed. Feed rescued animals in two clicks http://www.theanimalrescuesite.com/clickToGive/home.faces?siteId=3 [Posted in FML 8055]