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中文摘要：
为了解我国奶牛场球虫病流行情况，采用MeMaster法定量对我国黑龙江、吉林省、辽宁、北京、天津、河北、宁夏、广东等8个省、市及自治区的43个奶牛场共534份粪样进行了球虫虫卵检测。结果显示：39个奶牛场检测出球虫感染，平均感染率为90．7％，各地区的样品阳性率为24．2％～37．2％，感染强度（OPG）为0～47100个，平均OPG为469个。以华北地区为例，夏季球虫感染率为60％，秋季球虫感染率为50．9％，冬季球虫感染率为23．9％。研究表明：所调查地区均存在不同程度的球虫感染；其样品阳性率和感染强度存在明显差异；且球虫感染与季节有一定关系，球虫在夏秋季感染率和发病明显高于冬季。
英文摘要：
In order to further understand the epidemiological characteristics of China＇s dairy farms coccidiosis, this study adopts the McMaster method to quantitative analysis, we examined.534 fecal samples of 43 dairy s eoccidiosis from some part of China ,inclouding8 provinces, municipalities and autonomous regions. Results show： A total of 39 dairy farm detect coccidium, the average infection rate is 90.7%,the regional sample positive rate was 24.2%-37.2%, OPG is 0-47100,the average of OPG is 469.Taking northern china region for example ,the rate of coceidial infection is 60% in summer,50.9% in autumn,23.9% in winter. Our researches show that：The above four areas where there are different degrees of coccidial infection;the positive rate of sample and the intensity of infectionare different significantly;The coccidial infection has certain relation with season, the rate of coccidial infection and the incidence was significantly higher In the summer and fall.
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