北京地区奶牛乳房炎阳性率及发生规律的研究

Study on Positive Rate and Regularity of Milking Cow Mammitis of Milk Cow Dairy in Beijing Area

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%.