张家口地区奶牛临床型乳腺炎病原菌的分离鉴定

采集具有临床型乳腺炎奶牛的奶样,经细菌的分离培养、纯培养和生化试验,以确定奶牛临床型乳腺炎的致病菌种类。结果发现患临床型乳腺炎奶牛的致病菌和占分离菌株的百分率为:腐生葡萄球菌19.7%、金黄色葡萄球菌16.5%、兽疫链球菌17.3%、停乳链球菌9.4%、乳房链球菌3.9%、无乳链球菌1.6%、产气肠杆菌17.3%、聚团肠杆菌4.7%、奇异变形杆菌3.0%、大肠杆菌3.0%、蜡样芽胞杆菌3.0%,样品中单纯感染与混合感染的百分率分别为66.0%和27.8%。

Isolation and Identification of Bovine Clinical Mastitis Pathogens in Zhang Jia Kuo Region

Milk was collected from the cows with clinical mastitis. The kinds of bovine clinical mastitis pathogens were determined by isolation culture, pure culture and bio-chemical test. The results showed that pathogens and the percentage of isolates of the cows with clinical mastitis were as follows: S.saprophyticus (19.7%), S.aureus (16.5%), S. zooepidemicus (17.3%), S.dysgalactiae (9.4%), S.uberis (3.9%), S.agalactiae (1.6%), E.aerogenes (17.3%), E.agglomerates (4.7%), P.mirabilis (3.0%), E. coli ( 3.0%), B.cereus (3.0%), percentage of simple infection and co-infection were 66.0% and 27.8% respectively.