弧菌是近年来在河蟹人工育苗中最常见且危害极大的病害之一。它的感染蔓延速度快，在发病期间如治疗及防范不当，可使幼体在２～３天内全部感染，尤其是在变态过程中，４～６个小时可造成幼体８０％以上集中死亡，有时会造成整个车间内全部死亡。１．病原河蟹状幼体的弧菌病原 Vibrio is one of the most common and endangered diseases in artificial breeding of crabs in recent years. Its infection spreads fast, such as treatment and prevention during the onset of improper, can make larvae fully infected within 2 to 3 days, especially in the metamorphosis process, 4 to 6 hours can cause more than 80% of juvenile concentrated death, and sometimes Resulting in the death of the entire workshop. 1. Vibrio pathogen Crab-like larvae pathogen