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在渔业生产中,常发生草鱼“三病”,即细菌性烂鳃病、细菌性肠炎病、赤皮病的并发症,或其中两种病的症状。一、病鱼症状 1、细菌性烂鳃病。病鱼体色较黑,鳍丝腐烂,软骨末端外露,粘有污泥;鳃盖内表皮常充血,严重时中间部分的表皮被腐蚀而透明,俗称“开天窗”。 2.细菌性肠炎病。病鱼腹部膨大而具有红斑,肛门外突红肿,用手轻压腹部,有血黄色粘液流出;剖开腹部,常流出许多腹腔液,肠内没
In fishery production, grass carp “three disease” often occurs, namely bacterial gill disease, bacterial enteritis disease, complications of red-skin disease, or two of the symptoms of the disease. First, the symptoms of diseased fish 1, bacterial gill disease. Sick fish body color is black, fins filaments rot, cartilage ends exposed, sticky sludge; gill cover epidermis often congestion, in the middle part of the epidermis is corroded and transparent, commonly known as “open skylight.” 2. bacterial enteritis disease. Diseased fish swollen belly and have an erythema, anus outside the swelling, pressing the abdomen by hand, blood yellow mucus outflow; cut open the abdomen, often outflow of many peritoneal fluid, no intestinal