Prevalence and aetiology of mastitis in cows from two major Ethiopian dairies.

作者: S. Workineh , M. Bayleyegn , H. Mekonnen , L.N.D. Potgieter

DOI: 10.1023/A:1013729626377

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摘要: The study was undertaken to determine the aetiology and prevalence of mastitis in hand-milked cows (n = 186) two major Ethiopian dairies. California Mastitis Test culturing for bacteria revealed that 21.5% were clinically infected 38.2% had subclinical mastitis. Most pathogens isolated from milk samples testing positive by Gram-positive cocci. Staphylococci constituted 57% isolates, which predominant cause bovine Staphylococcus aureus (40.5%). Other include streptococci (16.5%), coliforms (9%) corynebacteria (5%). Retrospective analysis farm records indicated second most important culling accounted 27% removed these

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