信阳市平桥区中小型水库82座,养鱼面积3万多亩。近年来,随着养殖水平的不断提高,中小型水库精养半精养技术得到普遍推广,由于放养密度增大,养殖环境受到污染,每年都出现大批死鱼现象,给养殖户带来了极大的经济损失。笔者多年来对中小型水库的疫情进行监控,死鱼的主要原因是中华 Pingyang District, Xinyang Ping small and medium sized reservoirs 82, 30000 acres of fish area. In recent years, with the continuous improvement of farming, the intensive and semi-intensive cultivation of small and medium-sized reservoirs has been widely promoted. Due to the increase of stocking density and pollution of the breeding environment, a large number of dead fish occur every year, Big economic loss. The author over the years to monitor the epidemic of small reservoirs, the main reason for dead fish is China