对症下药,才能药到病除。但有的鱼病症状相似,常因误诊而错失治疗良机,影响生产。现将几种常见易混淆鱼病异同点简介如下: 一、出血病与肠炎病都主要危害当年和一龄的草鱼种,病鱼肛门红肿,肠道充血,呈鲜红色。但出血病是由呼肠弧病毒引起的,病症有“红肌肉”型、“红鳍红鳃盖”型、“肠炎”型三种类型。其中“肠炎”型仅表现肠道、脂肪等组织呈点状或块状充血,不发炎,而且肠道有弹性,通常水温25℃以上流行。而肠炎病是经菌引起的,肠道充血发炎,严重的呈紫色。剖开肠无食、有血脓。观察体表则鳍 Right medicine, in order to cure the disease. However, some fish disease symptoms are similar, often missed because of misdiagnosis and opportunity for treatment, affecting production. Now several common confusing fish disease similarities and differences are as follows: First, bleeding and enteritis are the main hazards that year and age of grass carp species, sick fish anal swelling, intestinal congestion, was bright red. However, hemorrhagic disease caused by Reovirus, the disease is “red muscle” type, “red fin red gill” type, “enteritis” type three types. Including “enteritis” type only shows intestinal, fat and other organizations were punctate or massive congestion, no inflammation, but also intestinal flexibility, usually above 25 ℃ water temperature prevalence. The enteritis is caused by bacteria, intestinal congestion and inflammation, severe purple. No bowel opening, there is blood pus. Observe the body surface is the fin