Milk production change following clinical mastitis and reproductive performance compared among J5 vaccinated and control dairy cattle.

Abstract

Naturally occurring cases of bovine clinical mastitis (CM) were studied among J5 vaccinates and controls on 3 commercial dairy farms. Milk production change and reproductive performance following CM were compared between the 2 groups. Among 306 controls and 251 vaccinates, there were 221 new cases of CM affecting 120 cows; 437 lactations never had a case of… (More)
DOI: 10.3168/jds.2008-1405

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