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近年来,由于水环境恶化、养殖密度过大、饲料过度投喂、药物使用不当等造成鱼体免疫力下降,鱼病增多,死鱼现象时有发生。近几年流行最广泛、危害最严重的急性烂鳃病,已成为影响渔业生产的重要因素。急性烂鳃是由鲤疱疹病毒引起的不良环境条件下继发感染细菌性疾病的暴发性传染病,病原是锦
In recent years, due to deteriorating water environment, breeding density is too large, over-fed feed, improper use of drugs, resulting in decreased immunity of fish, fish disease increased, dead fish occur from time to time. In recent years, the most widespread epidemic, the most serious acute gill disease, has become an important factor affecting fishery production. Acute rotten gills is an outbreak of infectious diseases that are secondary to bacterial diseases caused by the herpes zoster virus under adverse environmental conditions. The pathogen is Kam