金华市某奶牛场奶牛隐性乳房炎发病情况分析

The Investigation of the Subclinic Mastitis on a Certain Dairy Farm in Jinhua

对金华市某奶牛场200头健康泌乳牛的770个乳区进行隐性乳房炎检测,连续检测3个月,结果显示:该牛场隐性乳房炎的个体房炎的发生率与挤奶操作程序、月份、泌乳期、胎次、产奶量有很大关系。

Seven hundred and Sevenfy mamma regions of 200 healthy lactating cows were examined on a certain dairy farm in Jinhua for consecutive three months to determine the cows with subclinic mastitis. The result showed that 50.50 percent(303/600) of the dairy cows and 18.31 percent(423/2310) of the mamma regions of the dairy cows had got positive reaction. It was found that the incidence of the subclinic mastitis was greatly connected with milking program, month, lactating period and milk production.