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我国青鱼人工繁殖成功以来,一般靠人工助产受精的方式孵化鱼苗,青鱼催情后,雌雄自行交配产卵受精,仍为国内难题,人工助产受精,消耗劳力,损伤亲鱼,受精率不正常,针对这一问题,我所通过九年的反复实践,认真总结,终于找到了解决这一问题的规律:青鱼催情,不能达到自然产卵受精,我们认为,有以下两个方面的因素。一、青亲鱼性成熟季节迟生殖力弱,在一般饲养条件下,要在其他三大家鱼催产后期
Since the success of artificial breeding of herring in China, hatching of fry is usually carried out by means of artificial midwifery. After herring aphrodisiac, males and females mate their eggs and fertilize themselves, which is still a domestic problem. Artificial fertilization and fertilization, labor-consuming, broodstock injury, abnormal fertilization rate, In response to this question, I passed nine years of repeated practice and conscientiously summed up and finally found a solution to this problem: aphrodisiac, can not achieve natural spawning fertilization, we think, there are two factors. First, the pro-sexual maturity of green broodstock late entomology weak, under general feeding conditions, to be in the other three major fish late genitals