Bacterial respiratory diseases of nursery pigs

Even in today's progressive swine industry, bacterial respiratory pathogens continue to cause problems. These problems have been exacerbated because o f the development of multiple-site production systems. Three bacterial agen ts, Bordetella bronchiseptica, Pasteurella multocida, and Mycoplasma hyopne umoniae, are discussed in this article, which reviews clinical signs, lesio ns, and treatment/prevention programs for each organism. Also discussed are descriptions of bordetellosis, atrophic rhinitis, and pneumonic pasteurell osis in suckling piglets.