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本文作者为了确定在各种螺蛳的浸出液中是否有对毛蚴的制动作用,以及了解制动作用的物质的性质,进行了下述实验。试验所用螺蛳为对各种血吸虫易感和非易感的不同种、株阴性螺蛳共23种,所用血吸虫毛蚴共5种。对毛蚴的制动试验方法是将含有10～20只运动活泼的毛蚴的悬液放在有0.1毫升螺蛳组织浸出液的凹玻片中,用玻片盖好,放在26℃下,30分钟及、1、2、4和/或8小时用立体显微镜观察结果。通过预备实验表明用5%螺蛳组织浸出液,对照组用0.035M浓度的盐水,接触2小时进行实验最好。
The authors performed the following experiment in order to determine whether there is any braking effect on miracidia in the various leptospira leachates, and on the nature of the substance that is responsible for the braking effect. Test snails used for a variety of susceptible and non-susceptible to a variety of schistosomes, strain negative snail a total of 23, a total of 5 kinds of schistosomes miracidia used. The brake test method for miracidia is that a suspension containing 10-20 lively miracidia is placed in a concave glass slide with 0.1 ml of snail tissue leachate and covered with a slide glass and placed at 26 ° C. for 30 minutes and , 1, 2, 4 and / or 8 hours with a stereo microscope. Through preliminary experiments showed that with 5% snail tissue leachate, the control group with 0.035M concentration of salt water, exposure to 2 hours the best experiment.