近年来水产养殖业发展迅猛,池塘养殖的密度不断加大,水体的投入也在增加,当水体超过负载能力时,极易造成水体富营养化和水环境恶化,如水体氨氮、亚硝酸盐过高,pH值过大,这些不良因子诱发多种鱼病的发生。尤其是郑州郊区及沿黄中牟等养鱼密集地区连续几年爆发了规模大且死亡率极高的鲤鱼急性烂鳃病。该病来势迅猛,传染力极强,征兆病状不太明显,往往给广大养殖户造成巨大的经济损失,同时也给鱼病防治专业人员用药带来很大困难。 In recent years, the rapid development of aquaculture, pond farming continues to increase the density, water input is also increasing, when the water over the load capacity, can easily lead to eutrophication and water environment deterioration, such as water ammonia, nitrite High, pH value is too large, these adverse factors induce the occurrence of a variety of fish diseases. In particular, the outskirts of Zhengzhou and other areas along the fish such as Huang Zhongmou outbreak of large-scale and high mortality carp acute gill disease. The disease is extremely rapid, highly contagious, pathological symptoms are not obvious, often to the vast number of farmers cause huge economic losses, but also to the fish disease prevention and treatment professionals medication is very difficult.