A two-year survey of five herds with high Wisconsin ...



Title A two-year survey of five herds with high Wisconsin Mastitis test scores
Author(s) Lawrence E. Heider, R. R. Sturm
Journal Bovine Practitioner
Date 1980
Issue 15
Start page 45
End page 46, 48-50
Abstract During the period Nov. 1977 to Nov. 1979, 5 herds with high Wisconsin Mastitis Test (WMT) scores (>=16 mm) were studied. At the beginning of the trial, herds were visited by the authors, practices used on the farms were evaluated, and recommendations were made for correction of any deficiencies in milking technique, machine function or environmental conditions. All herds used 400 mg novobiocin infused at the beginning of the dry period. In 1 herd, WMT scores decreased and production increased following adoption of longer milking times, indicating that undermilking may be a limiting factor. Other factors implicated in limiting response to teat dipping and dry period therapy included Johne's disease, prolonged calving interval, low culling rates and wide bore liners. Alteration of machine function was not particularly beneficial. Novobiocin treatment in the dry period appeared efficacious against Streptococcus agalactiae infection..

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