在养鱼生产中,一些鱼病外观症状相似,而内在患病机理却不尽相同,如诊断错误便不能对症下药,往往会造成较大经济损失。为此,现将临床上一些较易混淆的鱼病辨别与防治方法介绍如下:一、肠出血型草鱼出血病与菌性肠炎病发病早期两者外观症状极为相似,病鱼体色发黑,体表轻微充血或出血,离群独游,游动缓慢,食欲减退,剖开鱼腹,两者均肠壁充血。不同之处在于活检时前者肠壁弹性较好,肠腔内粘液较少,镜检可见肠腔内有大量 In fish production, some fish disease appearance similar symptoms, but the underlying pathogenesis is not the same, such as diagnosis can not be the wrong remedy, often resulting in greater economic losses. To this end, now some clinically confusing fish disease identification and prevention methods are described below: First, intestinal hemorrhage grass carp bleeding and enteritis early onset of both appearance symptoms are very similar, diseased fish body color black, Surface congestion or bleeding slightly, outbound solitary tour, swimming slowly, loss of appetite, cut open the belly, both of the intestinal wall congestion. The difference is that when the former intestinal biopsy better wall elasticity, less mucus in the intestine, microscopic examination revealed a large number of intestinal lumen