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随着养殖集约化程度的提高,池养鱼类发生皮肤出血的现象也越来越多。每当发生此类情况,很多渔民往往大剂量使用抗生素治疗,但有时疗效并不显著,引起不小的损失。导致鱼类发生皮肤出血,笔者认为主要有以下几种原因:（１）致病细菌感染,如细菌性出血病、疖疮病、竖鳞病、打印病、
With the intensification of aquaculture, the occurrence of skin bleeding in fish ponds is also increasing. Whenever this happens, many fishermen tend to use high doses of antibiotic therapy, but sometimes the effects are not significant, causing considerable losses. Leading to skin bleeding fish, I think there are several main reasons: (1) pathogenic bacterial infections, such as bacterial hemorrhagic disease, scabies, sclare, print disease,