近年来，随着市场经济的发展和农业结构的调整，我县淡水鱼类养殖业蓬勃发展，但是每到夏季，高产鱼池常出现鱼泛塘、生病、死亡，造成严重的经济损失。究其原因一方面是夏季水温高，鱼活动频繁、摄食旺盛、生长快，是鱼生长最重要的时节，必须给予充足的饲料；另一方面是由于 In recent years, with the development of the market economy and the adjustment of agricultural structure, the freshwater fish farming in our county has been booming. However, every summer, fish ponds are often found in high-yielding fish ponds, causing illness and death, resulting in serious economic losses. On the one hand, the reason is the high water temperature in summer, frequent fish activities, feeding strong, fast growth, is the most important season for fish growth, adequate feed must be given; the other hand, due to