近年来，随着河蟹养殖面积的扩大，地区间引种增多，蟹病日趋严重，现将蟹病发病特点、原因、预防及治疗方法简要介绍如下： 发病特点 流行季节长，从蟹种放养到成蟹捕捞，整个养殖周期均有不同程度的发生，其中以秋季发病率最高。 幼蟹和成蟹都会感染病菌而发病死亡，其中以投 In recent years, with the expansion of crab farming area, the introduction of increased inter-regional, increasingly serious crab disease, now the characteristics of crab disease, causes, prevention and treatment are briefly described as follows: epidemic season epidemic from stocking to Crab fishing, the entire breeding cycle have varying degrees of occurrence, of which the highest incidence in autumn. Crab and crab will be infected with bacteria and the incidence of death, of which vote