Relation between somatic cell count and pathogenic bacteria in cow's milk [Polish]

摘要

The aim of the study was to evaluate the relation between subclinical forms of mastitis detected on the basis of SCC levels and those based on the results of microbiological examination of milk samples. The study examined 46 cows having no clinical symptoms of mastitis but with a bulk milk somatic cell count (BMSCC) which exceed 400 000/ml. Clinical tests involving the microbiological examination of milk samples and examination of SCC levels as well as clinical examinations of udders were performed each month over a period of nine months Coagulate-positive staphylococci were shown to be the most frequent cause of high BMSCC. Typical bacteria causing mastitis such as S. agalactiae or S. uberis were seldom isolated.