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河蟹是深受人们喜爱的水产品。近年来,养殖面积不断扩大。在养殖河蟹过程中,必须重视病害的防治。现就常见的几种病害和防治方法作一简介。1、细菌性疾病 病因:在运输、放养及生产过程中遭机械损伤或感染致病细菌所致。 病症:病蟹腹部及腹肢腐烂,肛门红肿,食欲减退,活动迟缓,逐至昏迷而死亡。 防治方法: ①用1ppm的土霉素或呋喃西林全池泼洒。
Crab is a popular aquatic product. In recent years, the area of breeding has been continuously expanded. In the process of farming crabs, we must pay attention to disease prevention and treatment. Now several common diseases and prevention methods for a brief introduction. 1, the cause of bacterial diseases: caused by mechanical damage or infection of pathogenic bacteria during transportation, stocking and production. Illness: Crab and abdominal limb rot disease, anal swelling, loss of appetite, slow activity, by the coma and death. Prevention and treatment methods: ① with 1ppm oxytetracycline or nitrofurazone Quanchiposa.