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1、细菌性鱼病。主要有链镛鱼的打印病和草青鱼的赤皮病。这两种病是由于机械损伤、被细菌侵入造成。防治方法是:鱼种下塘前用5%食盐水浸泡3—5分钟,下塘后定期用1PPM漂白粉(或0.5PPM优氯净,0.2PPM强氯精)或20PPM生石灰全塘泼洒。 2、真菌性鱼病。主要是水霉病。该病是由于机械损伤、冻伤或过度密养造成。各种鱼类在冬季都易发生此病,并能引起死亡。预防此病可用20PPM高锰酸钾浸洗鱼体,治疗可用2PPM五信子(一种中草药)全塘泼洒。 3、原生动物引起的鱼病。主要有口丝虫病和叙管
1, bacterial fish disease. The main chain catfish print disease and grass blackfish red skin disease. Both diseases are due to mechanical damage caused by bacteria invade. Preventive measures are: fish ponds with 5% salt water soak under the pond 3-5 minutes, after the pond regularly with 1PPM bleach (or 0.5PPM excellent chlorine net, 0.2PPM strong chlorine) or 20PPM quicklime whole pond spill. 2, fungal fish disease. Mainly water mold disease. The disease is due to mechanical injury, frostbite or over-keeping caused. All kinds of fish are prone to the disease in winter and can cause death. Prevention of the disease can be 20PPM potassium permanganate dipping fish, treatment available 2PPM five Xinzi (a Chinese herbal medicine) whole pond splashing. 3, protozoa caused by fish disease. There are oral filariasis and narcotics