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加拿大生物学家埃德瓦尔·多纳尔顿通过试验发现,将从小鸡和小牛身上提取出来的荷尔蒙(生长激素)加入到喂养鲑鱼苗的饲料中,能使鲑鱼的生长速度快一倍。如果喂普通饲料,小鲑鱼的日增重指数为1.48％,而饲喂“荷尔
Canadian biologist Edvard Donarron has found that the addition of hormones (growth hormone) extracted from chickens and calves to feed the salmon fry can double salmon growth. If fed a normal feed, the daily gain for small salmon was 1.48% while feeding “hor.”