鱼用4号促生长剂由北京市营养源研究所研制成功。在饵料中添加100ppm,鱼的平均增重可提高18％,同时对肉质也有改善作用,粗蛋白含量可提高3.02％,含脂率下降5.42％,氨基酸总和提高8.79％,人类必需8种氨基酸总和提高3.18％,而饵料成本只增加0.8—2.0％。每使用1吨“鱼用4号促生长剂”,养鱼可获纯利30万元,养对虾可获纯利200万元。 Fish growth promoter No. 4 by the Beijing Institute of Nutrition source successfully developed. The addition of 100ppm to the diet increased the average weight gain of fish by 18% and improved the meat quality. The crude protein content increased by 3.02%, the lipid content decreased by 5.42% and the total amino acid content increased by 8.79%. The total essential amino acids Increase 3.18%, while the cost of bait increased only 0.8-2.0%. Each use of 1 ton of “fish with growth promoters No. 4”, fish net profit of 300,000 yuan, raise shrimp will be net profit of 2 million yuan.