一、稀土:土鲢、鲤等鱼的饲料中,每公斤添加80—100克,可以使鱼的日增重提高10%—15%,并能增强抗病能力。二、甜菜碱:添加1.5%—2.5%的甜菜碱,作为诱惑剂,可吸引鱼来吞食,避免饲料沉入池底造成浪费。三、油脂:添加6%—8%的动物性或植物性油脂,可使鱼苗的生长速度提高20%,死亡率大大降低。四、醋酸镁:在每公斤鱼饲料中添加0.5克,可提高鱼的生长率,使日增 First, the rare earth: silver carp, carp and other fish feed, add 80-100 grams per kilogram, you can make the daily gain of fish increased by 10% -15%, and can enhance disease resistance. Second, betaine: Add 1.5% -2.5% betaine, as a temptation to attract fish to swallow, to avoid feed sink into the bottom of the waste. Third, the fat: add 6% -8% of animal or vegetable fat, fry can increase the growth rate of 20%, the mortality rate is greatly reduced. Fourth, magnesium acetate: add 0.5 grams per kilogram of fish feed, can increase the growth rate of fish, increasing day by day