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Procedure to induce artificial ovulation and spawning of freshwater eels

机译:人工排卵和淡水鳗鱼产卵的程序

摘要

Disclosed is a method for inducing artificial ovulation and spawning of freshwater eels to promote artificial ovulation, without employing intraperitoneal injection, by feeding a feminization-inducing material (e.g., 17²-estradiol) for inducing feminization during a predetermined period into a raising bath in which broodfish as a subject of artificial ovulation are raised and, when an ovulation induction period arrives, adding pituitary extracts of catadromous fish, i.e., a flathead mullet pituitary extract (FPE), as an artificial ovulation-promoting substance to the bath. Preferably, according to the present invention, raising water of the raising bath is prepared by selectively setting fresh water, brackish water and seawater conditions, a feminization-inducing material for inducing complete feminization of broodfish of the freshwater eels is fed to the raising bath including the raising water under a fresh water condition, and pre-treatment for feminization is performed. Subsequently, the raising water is set to a seawater condition and the ovulation-inducing substance is fed to the raising water, thereby inducing ovulation and spawning of the broodfish.
机译:公开了一种通过在预定时期内将用于诱导女性化的女性化诱导材料(例如17 2-雌二醇)喂入升高浴中而诱导人工排卵和淡水产卵以促进人工排卵的方法,而无需进行腹膜内注射。繁殖了作为人工排卵对象的亲鱼,当排卵诱导期到来时,向浴池中添加了cat鱼的垂体提取物,即head鱼head鱼垂体提取物(FPE),作为人工促排卵物质。优选地,根据本发明,通过选择性地设置淡水,微咸水和海水条件来制备所述育苗池的育苗水,将用于诱导所述淡水鳗鱼的亲鱼完全女性化的女性化诱导材料进料到所述育苗池中。在淡水条件下对引水进行处理,并进行女性化预处理。随后,将养鱼水置于海水条件下,将促排卵物质喂入养鱼水中,从而引起亲鱼的排卵和产卵。

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