Evaluation of effects of milking hygiene and management factor on clinical mastitis incidence in dairy cows [Sütçü ineklerde sagim hijyeni ve yönetiminin klinik mastitis insidensi üzerine etkisinin degerlendirilmesi]

The aim of this study was to determine the prevalence of clinical mastitis and somatic cell count (scc) in six dairy herdswhich had different milking management and hygiene conditions. four - hundred thirty one holstein - friesian cows were usedin the study. the herds were classified to be good (group 1,n=2),medium (group 2,n=1) or bad (group 3,n=3) accordingto milking management and hygiene. the study was carried out on these 3 groups. diagnosis of clinical mastitis was basedon pathological symptoms in quarters and abnormal changes in milk. rates of clinical cases were 20.2%,28.3% and 36.5% forgood,medium and bad conditions. individual (iscc) and bulk tank (btscc) somatic cell count were categorized to be low,medium and high. of the quarters,82% had low iscc (<200.000 cells ml-1) in herds with good milking hygiene. average isccand btscc values were higher in bad conditions than others (p<0.05).