我们于1975年4月—12月在武进县邹区公社杨庄大队、湾里生产队进行了四个沼气池的卫生学调查和寄生虫卵生活力的现场实验观察,初步报告如下。检验及实验方法:蛔虫卵计数采用浓缩法,生活力采用培养法,钩虫卵采用小试管滤纸培养法。血吸虫生活力用量杯冲洗沉淀三角烧瓶孵化法定量计数毛蚴。大肠菌值采用十倍稀释发酵法。肥效总氮用凯氏定氮法。氨态氮用直接蒸馏法。寄生虫卵生活力实验的血吸虫卵来源于处理过的阳性兔肝沉淀 We conducted a field investigation on the hygiene of four biogas digesters and the parasitoid egg vitality in April-December 1975 in Yangzhuang Brigade and Wanli Production Team, Zouqu Commune, Wujin County, preliminary reports are as follows. Test and experimental methods: Roundworm eggs count using concentration method, viability culture method, hookworm eggs using a small tube filter paper culture method. Schistosoma japonicum consumption cup washing sedimentation triangle flask incubation counting counting miracidia Escherichia coli ten times diluted fermentation method. Fertilizer total nitrogen with Kjeldahl method. Ammonia nitrogen by direct distillation. Schistosoma eggs from parasite egg viability derived from treated positive rabbit liver deposits