草鱼是池塘主养鱼类之一,它具有生长快、产量高等优点,但池养草鱼易患疾病,特别是草鱼“三病”的烂鳃、肠炎、赤皮病,常常给养鱼生产造成极大损害,是养鱼生产者十分棘手而担心的疾病。笔者在今年的生产实践中,着意用菖蒲、艾、雄黄制成 Grass carp is one of the main fish in the pond. It has the advantages of fast growth and high yield. However, the grass carp is susceptible to diseases, especially rotten gills, enteritis and red-skin disease of grass carp “three diseases”, and often causes fish production Great damage is a very troubling and worrying disease for fish producers. The author in this year’s production practice, deliberately with iris, Ai, realgar made