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鱼病的研究,早期以寄生虫病为主,接着是鱼细菌性病的研究,最后才开始病毒的骈究。我国1952年开始研究寄生在草鱼苗和夏花鱼种阶段的鳃隐鞭虫,寄生鳃丝部位。在江苏、浙江养鱼地区十分流行,引起草鱼大批死亡。还有不少种类的原生动物,也引起草鱼发病,如车轮虫、小瓜虫、斜管虫、杯体虫等。由原生动物孢子虫引起鱼病较普遍。白鲢最敏感,草鱼也有寄生,病原体是鲢碘孢虫。草鱼细菌性病有:肠炎病、烂鳃病、白头白嘴病、赤皮病、疖疮病、白皮病、竖鳞病和尾柄病等。1954年浙江卫生实验院首先报道有关草鱼肠炎病研究,同时中科院水生所在浙江菱湖鱼病工作站分离到一种肠型点状产气单孢菌,对健康鱼进
Fish disease research, early parasitic diseases, followed by the study of fish bacterial sexually transmitted diseases, and finally began to study the virus. In 1952, China began to study the parasitic gill filaments parasitized in grass fry and summer flower species. In Jiangsu, Zhejiang fish culture is very popular, causing a large number of deaths of grass carp. There are many types of protozoa, also caused the incidence of grass carp, such as car worm, small melon insects, beetles, cup beetles and so on. Fish diseases caused by protozoan sporozoites are more common. Silver carp is the most sensitive grass carp parasitic, the pathogen is silver carp iodine worm. Grass carp bacterial diseases are: enteritis disease, rotten gill disease, white-headed white bill disease, red-skin disease, scabies disease, white skin disease, vertical scales and caudal peduncle disease. 1954 Zhejiang Institute of Health first reported about grass carp enteritis disease, at the same time the Chinese Academy of Sciences Aquarium Zhejiang Ling Lake Fish Disease Station isolated a kind of enteric-like gas-producing monospora, health fish into