据试验表明,阉鱼比未阉的鱼生长快3倍多,且消耗的饲料较少,是养鱼高产的又一新招,很有推广价值。阉鱼操作有三种方法: 一、从成鱼体内取出卵巢和睾丸,经过精心研磨,制成卵巢和睾丸混合液,然后极少量地注射到幼鱼体内,使幼鱼的免疫系统因受到强烈刺激而发挥作用,强 According to the tests, it shows that the castrated fish grow more than 3 times faster than the non-castrated fish and consume less feed, which is another new tactic for high-yield fish farming, which has great promotion value. There are three ways to operate a tilapia: one is to remove the ovary and testis from the adult fish, carefully ground to form a mixed solution of ovary and testis, then injected into the juvenile very little to make the juvenile’s immune system strongly stimulated And play a role, strong