经过几年养鱼实践,学习书本知识,在生产中应用下列三种草鱼防治方法效果较好,现介绍如下: 一、草鱼肠炎病:病鱼体表色素深、体色发黑,头部乌黑,一般病鱼离群独游,行动迟缓,失去食欲,常有气无力地在池边水面缓慢游动,或飘浮于水面,反应迟钝。 After several years of practice of fish farming, learning the book knowledge, the application of the following three kinds of grass carp prevention and control methods in the production of better results are as follows: First, grass carp enteritis: sick fish body color dark, black body color, black head In general, sick fish travel alone, slow, loss of appetite, often weakness swimming slowly in the pool water surface, or floating in the water, unresponsive.