重庆地区奶牛隐性乳房炎的调查

The Investigation of Hidden Mastitis in Cow in Chongqing

采用CMT检测法,对重庆地区146头泌乳奶牛进行隐性乳房炎检测,并对部分阳性牛进行致病菌的分离鉴定及药敏试验。结果显示:146头泌乳奶牛隐性乳房炎感染率为79.62％,泌乳乳区阳性率为56.31％(574个乳区);致病菌检出率75％;金黄色葡萄球菌和沙门氏菌分别占50％和25％;致病菌对一些不常用的药物敏感性较好,而常用的药物抑茵效果较差。

146 lactating dairy cattle in Chongqing had been detected by CMT method to determine the incidence of hidden mastitis, pathogen were also isolated from the milk and identified, then pharmacosen-sitive test was carried out. it was found that positive incidence of hidden mastitis was 79. 62%, udder region positive incidence 56. 31%, pathogen positive incidence 75% . The positive incidence of S. aureus and Salmonella were 50%, 25% respectively. The pathogen were more sensitive to uncommon antibiotics, but the therapy of antibiotics, which were common used, was not very good.