Veterinary Bacteriology is the study of bacteria that cause diseases on animals. This book is organized by animal, focusing on small ruminants, big ruminants, pigs, dogs, fish and birds. Specific examples of bacterial infections are discussed for ruminants and pigs. More broad bacterial studies are shown for dogs, fish and birds. In Ovines and Caprines, bacteria can cause Mastitis, Brucellosis and Interdigital phlegmon. Bovine bacterial infections, include Leptospira, Streptococcus, Tuberculosis, Antrax and respiratory diseases. In pigs, Streptococcus, Actinobacillus, Chlamydia, Corynebacterium and Staphylococcus are common bacterial diseases. Canine Microbiome and campylobacter in canines. Taxonomy of bacteria in fish. Avian bacteriology, focusing in Listeria and Escherichia coli.