I found a book when I was looking for a kidney diet for my Pepper.
"Home-prepared Dog and Cat Diets, The Healthful Alternative",
Donald R. Strombeck, DVM, The Iowa State University Press, 2121 South State Ave., Ames Iowa 50014. 1-800-862-6657. www.isupress.edu
Home-Prepared Dog and Cat Diets at Amazon.ca
Home-Prepared Dog and Cat Diets at Chapters
Home-Prepared Dog and Cat Diets at Amazon.com
You may be able to get this book cheaper at another book store. I hope this helps. Good Luck!