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Mycoplasma spp. are contagious, mastitis-causing pathogens that do not grow well on blood agar under aerobic conditions and therefore must
be grown on a selective agar under anaerobic conditions. Infected cows typically have mastitis in multiple quarters and exhibit a dramatic decrease in milk production. A Mycoplasma spp. mastitis outbreak can be preceded by a respiratory disease event in bovines of different ages on the farm.
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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