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暴发性出血病的病原分三种类型:①鲁克氏耶乐森氏菌;②嗜水气单胞菌;③弧菌等革兰氏阳性菌。表现的症状通常有:病鱼体外全身充血,眼球突出,肛门红肿,腹部膨大,腹腔内有大量淡黄色或红色腹水,严重贫血,肝肾肿大,有的鳞片竖起,肛门处拖粘液便,症状表现多样化,有的甚至肉眼看不出
Pathogenesis of fulminant hemorrhagic disease is divided into three types: ① Luke Jieke bacteria; ② Aeromonas hydrophila; ③ Vibrio and other Gram-positive bacteria. Symptoms usually manifest as: sick fish in vitro systemic congestion, prominent eyes, anal swelling, abdominal enlargement, abdominal a large number of yellowish or red ascites, severe anemia, liver and kidney enlargement, and some scales erect, anal mucus , The performance of diverse symptoms, some even the naked eye can not see