From Medical Wizards:
The Merck Veterinary Manual (9th Edition) is the single most comprehensive reference for animal care information! The Merck Veterinary Manual (MVM) has served veterinarians and other animal health professionals as a concise and reliable animal health reference for over 50 years.
MVM has more than doubled in volume to accommodate advances in scientific knowledge and the expansion and specialization of the veterinary profession over the years. The 9th Edition MVM reflects both the remarkable advances in veterinary science and the emergence of new pathogens and new diseases since the publication of the 8th edition of the Manual