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Pasteurella spp. are contagious pathogens that are seldom reported as a cause of bovine mastitis. Mastitis caused by Pasteurella spp. usually appears as a thick, creamy-yellow, viscous secretion, sometimes with a foul odor. Pasteurella spp. are Gram-negative and similar in structure to other coliform mastitis pathogens. Additionally, when grown on blood agar, Pasteurella spp. have been found to have irregular, rough colonies that produce a musty odor.
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Issued in furtherance of Cooperative Extension work, Virginia Polytechnic Institute and State University, Virginia State University, and the U.S. Department of Agriculture cooperating. Edwin J. Jones, Director, Virginia Cooperative Extension, Virginia Tech, Blacksburg; M. Ray McKinnie, Administrator, 1890 Extension Program, Virginia State University, Petersburg.
April 12, 2016