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作者在多年的河蟹 (Ｅｒｉｏｃｈｅｉｒｓｉｎｅｎｓｉｓ)育苗生产实践中 ,总结出了对其幼体常见病害行之有效的防治措施。1 纤毛虫病病原 主要是聚缩虫属、独缩虫属、钟虫属及累枝虫属 ,虫体构造基本相同 ,显微镜下呈倒钟罩状。症状 肉眼见体表有绒毛物附着 ;显微镜下可见?
The author in many years of crab (Eriocheirsinensis) nursery production practice, summed up the larvae common disease prevention and treatment measures. 1 The main pathogens of ciliophora polyparasites, Trichuris, Bellwort and Triticina, worms basically the same structure, inverted bell bell-shaped under the microscope. Symptoms of the naked eye see the surface of the body attached to the villi; visible under the microscope?