新疆地区奶牛乳房炎病原菌的流行病学调查

Epidemiology of Bovine Mastitis Pathogens in Xinjiang

对新疆地区奶牛乳房炎（包括隐性乳房炎和临床乳房炎）进行了发病率和致病菌进行了流行病学调查。结果发现新疆地区7个牧场隐性乳房炎发病率在11.3%~28.8%。大部分乳房炎发病为单一细菌感染引起。隐性乳房炎中共分离得到9个不同种属的病原菌,以凝固酶阴性葡萄球菌、乳房链球菌和无乳链球菌为最常见。临床乳房炎样品中共分离得到11个不同种属的样品,流行度最高的四种病原菌为凝固酶阴性葡萄球菌、乳房链球菌、大肠杆菌和肺炎克雷伯菌。在隐性乳房炎和临床乳房炎样品中均分离得到了金黄色葡萄球菌。

In the present study, we investigate the epidemiology of bovine mastitis pathogens in Xin Jiang area, which include sub- and clinical mastitis. Our results showed that the prevalent rates of subclinical mastitis were from 11.3%to 28.8%within different herds. Most of cases were caused by single bacteria. Nine species were iso-lated from subclinical mastitis cases while eleven species were isolated from clinical cases. Of these pathogens, CNS, Streptococcus uberis and Streptococcus agalactiae were the most common in subclinical cases and CNS, Streptococcus uberis, E. coli and Klebsiella pneumonia were mainly responsible for clinical cases.