网箱养鱼由于网箱中鱼种放养密度大,鱼类一旦发病,则传染机会大,死亡率高。且网箱都是设置在江河,湖库等流动性水域中,网箱内外水体交换频繁,鱼病防治困难。目前网箱养鱼的用药方法除在鱼种进箱前用药物浸泡消毒和进行草鱼出血病疫苗免疫外,常见的有以下几种: Fish cage cage due to stocking species density, once the incidence of fish, the chances of transmission of infection, high mortality. And cages are set in the rivers, lakes and other liquid waters, the exchange of water inside and outside the cage frequently, fish disease prevention and control difficulties. At present, the method of using fish cages in addition to fish in the box before the drug soaking disinfection and grass carp hemorrhage vaccine immunity, the common are the following: