通过发酵罐放大培养 ,优化发酵参数 ,提高了重组草鱼生长激素在酵母中的表达量。以含重组草鱼生长激素的酵母裂解物投喂鱼苗 ,实验组鱼体重的增加显著高于对照组 ,体长的亦高于对照组。鱼体生化组成分析表明 :投喂转草鱼生长激素基因酵母裂解物能显著提高鱼体的干物质和蛋白含量 ,并降低鱼体脂肪酸含量 By fermentor amplification culture, optimizing fermentation parameters, increased expression of recombinant grass carp growth hormone in yeast. Fish fed with yeast lysate containing recombinant grass carp growth hormone had significantly higher body weight gain in the experimental group than in the control group and body length was also higher than that in the control group. The biochemical composition analysis of fish body showed that feeding the grass carp growth hormone gene yeast lysate can significantly increase the dry matter and protein content of the fish body and reduce the fatty acid content of the fish body