草鱼易感染“三病”,即烂鳃、肠炎、出血病。在这三种病中,目前对烂鳃、肠炎病已有较好的防治方法,而出血病因为是近几年来新发现的一种病毒性鱼病,对其发病规律和防治方法,刚开始摸索,研究得不深。尤其是对“三病”并发症,尚缺乏有效的防治措施。因此,开展对草鱼烂鳃、肠炎、出血病的综合防治研究,对培育优质的大规格草鱼种、提高其成活率、提高其成鱼养殖产 Grass carp susceptible to “three diseases”, namely rotten gill, enteritis, bleeding disease. In these three diseases, the current gill, enteritis disease has a better prevention and treatment methods, and hemorrhagic disease is a newly discovered in recent years a viral fish disease, its incidence and prevention methods, just started Exploration, research is not deep. Especially for the “three disease” complications, there is a lack of effective prevention and treatment measures. Therefore, the grass carp gill, enteritis, hemorrhagic disease prevention and control of comprehensive research on the cultivation of large-scale quality grass carp species, increase their survival rate and improve their adult fish farming