CASE STUDY: Development of a Mycoplasma Mastitis Control Program in Louisiana1

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CASE STUDY: Development of a Mycoplasma Mastitis Control Program in Louisiana1 Powered By Docstoc
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Description: This report describes the development and implementation of a statewide mycoplasma mastitis control program for Louisiana. Mycoplasma mastitis is a unique form of mastitis caused by several species of the genus Mycoplasma. The highly contagious nature of these infections coupled with difficulties in diagnosis and therapy often contributes to catastrophic herd outbreaks resulting in severe economic loss. Mycoplasma mastitis was first detected in Louisiana in September 2002. As a result of this initial outbreak and because of the potential for serious economic loss associated with this type of mastitis, all dairy farms in the state were screened for mycoplasma mastitis. This screening identified an additional 12 dairy farms (2.8%) as having Mycoplasma species in bulk tank milk. The statewide survey prompted a rapid and unique response from several diverse groups within the state to address the problem. As a result of these meetings, a program was designed with input from all groups involved to combat this threat. Monthly bulk milk analysis revealed Mycoplasma species in at least 1 bulk tank for 12 of the 20 mo tested. Twenty-four bulk milk samples were positive for mycoplasma over the course of the monthly portion of the program. In 2006 the program shifted to a quarterly sampling of bulk tanks. Results from 545 bulk tanks cultured revealed 3 bulk tanks positive for Mycoplasma species (0.05%) during 2006. The implementation of an education, monitoring, and control program combining monthly bulk tank culture with restrictions on sale of cattle from confirmed positive herds has reduced the incidence of this type of mastitis in Louisiana and heightened awareness and adoption of control measures. [PUBLICATION ABSTRACT]
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