东风螺脱壳病活体接触感染试验

为了解东风螺能否通过接触感染脱壳病,将正在发生脱壳病的东风螺,与健康螺养在同一个水泥池,时间17～40d。实验结果:健康螺生长、摄食、存活基本正常,未出现感染脱壳病的症状。人工水泥池养殖东风螺,脱壳病的非生物病因是综合性因素造成的环境条件不适长期作用的结果。东风螺水泥池养殖病害防治,应以改善生态环境条件等综合预防措施为主。

The contacting infected testing of the shelling disease of Babylonia

At present,the shell disease was one of the most common diseases of artificial breeding Babylonia in cement pond. In order to know whether Babylonia were suffering shelling disease through contact with the infected, the sick Babylonia which were suffering shelling disease were bred together with health Babylonia in the same breeding cement pond for 17～40 days. The results showed that the symptoms of shell disease did not appear on the healthy Babylonia,and the growth,the feeding and the survival of the healthy Babylonia were mostly normal. These showed that the healthy Babylonia did not contaminated by the sick Babylonia. When artificially breeding in cement pond, the non-biological causes of shelling disease of Babylonia is mainly caused by the long-term effect of improper environmental conditions,which were created by the comprehensive factors. Preventing and controlling the diseases of Babylonia should be based on a comprehensive preventive measure of improving the conditions of the ecological environment.