草鱼出血病是草鱼饲养阶段危害最大的一种传染病,流行季节在6月下旬至9月底,一旦发病,往往给养殖者带来严重损失。 病鱼体内外各器官和组织呈现斑点或块状充血,病情轻者全身肌肉呈点状充血,下颚、鳃盖和腹部出现淡红色血斑,眼球突出;重者全身肌肉呈红色,鳃丝出血,内脏器官均可出现点状充血,有时有腹水,肠道无食物,充血但不糜烂。其中草药防治方法是: 1.每亩水面水深1米,用0.6千克大黄放入3- Grass carp hemorrhagic disease is the most harmful stage of grass carp feeding an infectious disease, the epidemic season from late June to the end of September, once the disease, often bring serious damage to farmers. Diseases of fish in vivo organs and tissues showed spots or massive hyperemia, mild condition of the body muscles were punctate hyperemia, jaw, gill cover and abdomen appear pink blood spot, prominent; heavy body muscles were red, gill filaments bleeding , Internal organs may appear punctate hyperemia, and sometimes ascites, intestine without food, congestion but not erosion. One of the herbal control methods are: 1. 1 m water depth per mu, with 0.6 kg rhubarb into the 3-