摘要
本次试验采用体细胞计数法,4 %苛性钠法,CMT法对北京地区 4个奶牛场的奶牛进行了乳房炎的检测。结果表明奶年场奶牛隐性乳房炎头数阳性率为 4 7 2 2 %,临床型乳房炎头数阳性率为 4 86%,乳区阳性率为 4 4 4 4 %
The Milk cow mastitis has been tested to Beijing area 4 milk cow dairy in this experiment.The body cell meter method,4% NaOH method and CMT method were used in the study.The results indicated that the positive Rate of Subclinical mastitis is 47.22%,the positive Rate of Clinical mastitis is 4.86%,and the positive Rate of mammary region is 44.44%.
出处
《北京农学院学报》
2001年第3期43-46,共4页
Journal of Beijing University of Agriculture
基金
北京市教委 2 0 0 0年资助项目
关键词
奶牛
乳房炎
阳性率
bovine,mastitis,positive rate