夏河县高原藏羊消化道寄生虫感染情况调查

Investigation on parasite infection in digestive tract of Tibetan sheep at plateau in Xiahe County

研究旨在更好地了解夏河县高原藏羊消化道寄生虫感染情况,并为当地高原藏羊消化道寄生虫的防治提供参考。在春秋季节驱虫前,于甘南藏族自治州夏河县采集5个场点的藏羊新鲜粪便,采用虫卵漂浮法、沉淀法和麦克马斯特氏法对粪样进行显微镜检查并统计检查结果。结果显示,夏河县高原藏羊消化道寄生虫总阳性率达97.50%,其中消化道线虫阳性率为91.33%,平均感染强度为1 011.75个/g;消化道吸虫阳性率达11.45%,平均感染强度为195.24个/g;消化道绦虫阳性率为4.79%,平均感染强度为185.71个/g;消化道球虫阳性率为75.52%,平均感染强度为981.22个/g。研究表明,夏河县藏羊消化道寄生虫感染比较严重,其中线虫和球虫感染率高,感染强度大,仍需加强对藏羊寄生虫病的防治。

The purpose of the study is to better understand the infection of digestive tract parasites in Tibetan sheep at Xiahe County,and to provide a reference for the prevention and control of digestive tract parasites in Tibetan sheep at local plateau.Before deworming in spring and autumn,fresh feces of Tibetan sheep were collected from five sites in Xiahe County,Gannan Tibetan Autonomous Prefecture.The feces were examined by microscope by egg floating method,sedimentation method and McMaster's method,and the results were statistically analyzed.The results showed that the total positive rate of alimentary tract parasites of Tibetan sheep in Xiahe County was 97.50%,among which the positive rate of alimentary tract nematodes was 91.33%,and the average infection intensity was 1011.75/g.The positive rate of trematodes in digestive tract was 11.45%,and the average infection intensity was 195.24/g.The positive rate of tapeworms in digestive tract was 4.79%,and the average infection intensity was 185.71/g.The positive rate of coccidia in digestive tract was 75.52%,and the average infection intensity was 981.22/g.The study indicates that the parasitic infection of Tibetan sheep in Xiahe County is serious,among which nematodes and coccidia have high infection rate and high infection intensity,so it is still necessary to strengthen the prevention and control of Tibetan sheep parasitic diseases.