河蟹甲壳病是由细菌引起的一种疾病。在捕捞作业、长途运输、长时间暂养过程中 ,蟹体遭受创伤后容易发生。主要症状是 :病蟹背甲、胸板、步足上出现黄褐色或黑褐色的病斑 ,严重的病斑中间 ,轻戳即可穿过 ,有的步足末端还往往溃烂成黑色 ,严重影响到河蟹的生长。对河蟹甲壳病的 Crab carapace is a disease caused by bacteria. In fishing operations, long-distance transport, holding a long time in the process, the crab is easy to happen after trauma. The main symptoms are: crab carapace, chest plate, step foot on the emergence of brown or dark brown spots, severe lesion in the middle, light stamped to pass through, and sometimes the end of the foot also often festered into black, seriously affected To the crab’s growth. Crab on the river crabs