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流行情况:此病流行季节为4～9月份,当水温升到17℃以上的春季和初夏开始发病。该病主要对幼蟹、成蟹危害较大。主要是因捕捞运输时蟹体受到机械损伤或是放养与生长过程中的自相残杀或敌害生物侵袭造成伤害引起病原菌感染所致。防治方法:(1)运输放养时操作要细致,不要使河蟹受伤
Epidemic situation: The epidemic season is from April to September, when the water temperature rose to above 17 ℃ in spring and early summer onset. The disease mainly crab, crab more harmful. Mainly due to fishing and transportation of crab by mechanical damage or stocking and growth during the killing or hostile biological attack caused by pathogenic bacteria caused by infection. Prevention and control methods: (1) transport and stocking operations should be meticulous, do not make crabs injured