The Merck Veterinary Manual, 8th Edition
"I know of no other animal health reference that contains so much information that is so user-friendly. . . .Anyone with an interest in veterinary medicine, animal science, livestock production, or other agricultural agencies, as well as students interested in animal care and wellness, will find this book an outstanding resource." (James L. Voss, DVM, MS, Dean Emeritus, College of Veterinary Medicine and Biological Sciences, Colorado State University)