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鱼生活在水中,环境因素比较复杂,得病原因往往也较复杂,如客观上有季节、天气、环境等;主观上有饲养管理不当等。如忽视了这些,即使再注意治疗,也往往是为时已晚,必须做到未雨绸缪,无病先防。其办法: 一是清整鱼池。首先排干池水,让池底用日晒,除去过多的淤泥,然后用生石灰清塘消毒,即在放鱼前半个月左右,每亩用生石灰50—75公斤,带水清塘(水深1米)每亩用生石灰75～150公斤,7～8天后才能放药入水,生石灰能杀灭淤泥中的鱼类寄生虫、病原菌和有害昆虫,同时又
Fish living in the water, the environmental factors are more complicated, the causes are often more complicated, such as the objective seasonal, weather, environment; subjective feeding management properly. If we neglect these things, even if we pay attention to treatment, it is often too late. We must take precautions beforehand and we should be patient-free. The solution: First, clear the pond. First drain the water, let the bottom of the pool with the sun, remove excess sludge, and then clear the pond with quicklime disinfection, that is, about half a month before the release of fish, with lime per acre 50-75 kg, with clear ponds (water depth 1 Meters) 75 to 150 kg of lime per acre, 7 to 8 days after the release of drugs into the water, quicklime can kill fish in the sludge parasites, pathogens and harmful insects, at the same time