沟鲶的学名为斑点叉尾　，又称美洲鲶，河鲶等，原产于美洲，它具有适温范围广，抗病力强，生长快，肉鲜味美，出肉率高等优点，是一种优良的淡水养殖对象。现将其主要病害的症状、流行规律及防治方法介绍如下：１ 出血性腐败病１．１ 症 状 病鱼在水中表现呆滞或作抽搐性游动 Ditch catfish scientific name for catfish, also known as the catfish, river catfish, native to the Americas, it has a wide range of suitable temperature, disease resistance, fast growth, delicious meat, the advantages of higher meat yield, is An excellent freshwater aquaculture object. Now the main symptoms of the disease, the prevalence of the law and prevention methods are described below: 1 hemorrhagic decay disease 1.1 Symptoms disease in the water dull or for twitching swimming