现代商业化水产养殖与利用生物技术密切相关。为加快养殖品种的生长，使用生长激素常是首选之法。美国水产研究人员对注射小牛生长激素的条纹鲈的生长、摄食量、饲料转换率、氨排泄量、氨基酸吸收进行了测定。测出注射小牛生长激素后鱼的特定生长率提高了５０％，而摄食量却无? Modern commercial aquaculture is closely linked to the use of biotechnology. To speed up the growth of cultured species, the use of growth hormone is often the preferred method. American aquaculture researchers measured the growth, food intake, feed conversion rate, ammonia excretion, and amino acid absorption of striped bass injected with calf growth hormone. Measured after injection of calf growth hormone fish specific growth rate increased by 50%, while the amount of food without?