近年来,该乡四季均在沼泽草场放牧的牲畜,因急性肝片吸虫病而死亡的现象时有发生。对这里的牦牛抽取30头进行粪便检查,检出率竟高达29.3%为搞清本地区肝片吸虫流行的基本情况,进而为防治肝片吸虫病提供科学依据,笔者用一年时间对栖息在该乡沼泽地的椎实螺进行了生态学观察,并 In recent years, all the livestock grazing in the marsh pastures of the township have died from acute hepatic fistuloses. 30 yaks here for stool examination, the detection rate was as high as 29.3% In order to find out the basic situation of the prevalence of Fasciola hepatica in the region, thus providing a scientific basis for the prevention and treatment of hepatic diseases, the author used one year on the habitat The township of the spinella solid ecology conducted a survey, and