摘要
对重庆部分地区６个奶牛场１１８头泌乳奶牛进行临床型乳房炎的病因及发病情况调查，并对其中７６头泌４乳奶牛进行隐性乳房炎检查，同时对２２６份患乳房炎和健康奶牛奶样进行细菌学分离鉴定。结果表明：临床型乳房炎奶牛及阳性乳区分别为８．４７％（１０／１１８）和３．３２％（１５／４５２）；隐性乳房炎奶牛及阳性乳区分别为７８．９４％（６０／７６）和５０．３４％（１４８／２９４）；临床型乳房炎、隐性乳房炎奶牛的阳性乳区奶样和健康奶牛的奶样细菌检出率分别为８６．６７％（１３／１５）、８７．８３％（１３０／１４８）和７３．００％（４６／６３）；检出的细菌主要是葡萄球菌和链球菌。
This paper investigated into the causative agent and condition of the clinical mastitis of 118 milking cows in 6 cowfarms of chongqing city.The results showed that the clinical mastitis cows were 8 47%(10/118),and the quarter incidenec was 3 32%(15/452).The subclinical mastitis cows were 78 94%(60/76) and the quarter incidenec was 50 34%(148/294).The incidence of bacteria detected from milk samples of clinical mastitis area,the subclinical mastitis area and the normal cows were 86 67%、87 83%、73 00% respectively,The bacteria were mainly staphylococcus and streptococcus.
