1预防措施1.1最近两年养过草鱼种的池塘,特别是以前患过草鱼“三病”的池塘不要用于草鱼种的培育。1.2对旧鱼塘彻底清淤,通过清淤和池底曝晒,杀死大部分的病菌、病毒,消除鱼病隐患。1.3做好池塘的消毒工作,根据养殖池塘的底质和水质状况,选择生石灰或漂白粉等药物彻底消毒。 1 Preventive measures 1.1 Ponds that have been planted with grass carp in recent two years, especially those that have previously suffered from grass carp “three disease” should not be used for the cultivation of grass carp species. 1.2 The old fishpond completely dredging, through the dredging and pool bottom exposure, kill most of the bacteria, viruses, eliminating the hidden dangers of fish disease. 1.3 do a good job in the disinfection of the pond, aquaculture ponds under the substrate and water quality, choose quicklime or bleach and other drugs thoroughly disinfected.