网箱养殖草鱼的疾病绝大多数情况下都是由饲料营养问题引起，因其大部分有细菌病等并发症，常误导人仅当作细菌病、原虫寄生病治疗，结果适得其反，很难治本。１芥子甙棉酚中毒病目前许多饲料厂家在鱼料配方上使用不经脱毒的菜籽粕、棉籽粕，且用量相当高。长期食用这种饲料的 Most of the diseases of caged fish breeding grass carp caused by feed nutrition, because most of the complications such as bacterial diseases, often misleading people only as a bacterial disease, parasite parasitic disease treatment, the result is counterproductive, it is difficult to cure . 1 mustard glycosides gossypol poisoning At present, many feed manufacturers in the fish recipe using non-detoxified rapeseed meal, cottonseed meal, and the amount is quite high. Long-term consumption of this feed