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日本通过40年对鳗鲡成熟控制技术的研究,特别是近几年来采用17,20β-dihydroxy-4-pregnen-3-one(DHP)的鳗鲡雌鱼成熟诱导技术,使高质量鳗鲡受精卵的取得具有相当高的把握性。日本水产厅养殖研究所采用以鲨鱼卵冷冻干燥粉末为主要成份并含有磷虾或其它鲜鱼虾抽提液的糊状饲料,喂食人工孵化的日本鳗鲡仔鱼取得举世嘱目的突破性进展,但柳叶状仔鱼全长达到30mm以后几乎不再摄食,出现生长停滞,并已变得十分衰弱。全面攻克日本鳗鲡人工育苗难题尚待时日,特别是研制能有效促进后期柳叶状仔鱼生长并变态的全价育苗饲料已成为目前关注的焦点。
Japan 40 years of research on the mature control technology of Anguilla japonicus, especially the induction of female adult eel by 17,20β-dihydroxy-4-pregnen-3-one (DHP) in recent years, Has a very high grasp. Japan Aquaculture Agency Aquaculture Institute uses shark egg freeze-dried powder as the main ingredient and contains krill or other fresh fish prawn extract paste feed, artificial hatching of Japanese eel larvae made the world’s purpose to achieve a breakthrough, but willow Leafy larvae almost no longer feed after reaching a full length of 30 mm, stunted and have become very weak. It is yet to wait for a long time to tackle the problem of artificial breeding of eel in Japan. In particular, the development of full-fledged nursery feed that can effectively promote the growth and metamorphosis of late willow larvae has become the focus of current attention.