Prevalence of Mannheimia haemolytica Isolated from Bovine Nasal Exudates and Associated Factors, in Dairy Farms in the North-Central of Mexico

C.J. Jaramillo-Arango, R. Hernandez-Castro, F. Suarez-Guemes, J.J. Martinez-Maya, F. Aguilar-Romero, L. Jaramillo-Meza and F.J. Trigo

Journal of Animal and Veterinary Advances 6 ( 3 ): 404 - 409 , 2007