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曹杰超, 欧阳玉梅. 鲤鱼脑垂体促性腺激素含量年周期变化的研究[J]. 水生生物学报, 1975, (4): 535-540.
引用本文: 曹杰超, 欧阳玉梅. 鲤鱼脑垂体促性腺激素含量年周期变化的研究[J]. 水生生物学报, 1975, (4): 535-540.
Tsao Chieh-chao, Ouyang Yu-mei. CYCLIC FLUCTUATION OF THE ACTIVITY OF GONADOTROPIN IN THE CARP PITUITARY[J]. ACTA HYDROBIOLOGICA SINICA, 1975, (4): 535-540.
Citation: Tsao Chieh-chao, Ouyang Yu-mei. CYCLIC FLUCTUATION OF THE ACTIVITY OF GONADOTROPIN IN THE CARP PITUITARY[J]. ACTA HYDROBIOLOGICA SINICA, 1975, (4): 535-540.

鲤鱼脑垂体促性腺激素含量年周期变化的研究

CYCLIC FLUCTUATION OF THE ACTIVITY OF GONADOTROPIN IN THE CARP PITUITARY

  • 摘要: 本文报道了用蟾蜍离体卵巢跌卵的方法来研究鲤鱼脑垂体里的促性腺激素含量的年周期变化情况,以解决我国鲩、青、鲢、鳙人工繁殖工作中应用鲤鱼脑垂体作为催产剂的质量问题。实验是在1962—1963年进行的。实验结果表明:鲤鱼脑垂体对蟾蜍离体卵巢有明显的跌卵效果;鲤鱼脑垂体里的促性腺激素是常年存在的,但随季节的不同而含量亦有所不同。全年中以2—3月份的脑垂体里促性腺激素的含量最高,10月份为最低,其他月份则是逐渐递升与递减的关系,因而呈现出一明显的年周期变化规律,这对指导收集鲤鱼脑垂体的最适季节具有一定的实用意义。对鱼类脑垂体的生理探讨方面也提供了一些新的资料。

     

    Abstract: The method of in vitro ovulation of the ovarian fragments of the toad,Bufobufo gargarizans,in a medium containing carp pituitary suspension has been emp-loyed to assess the gonadotropic activity of carp pituitaries collected from the samelocality but in different months of the year.Results of our experimentation indicatethat carp pituitaries collected from February through March have the strongest gona-dotropic effect,while those collected in December the weakest.Potency of the glanddecreases gradually from March onwards,and increases gradually after Decemberuntil a maximum is reached in February;thus carp pituitaries exhibit a definitecyclic change in the relative amount of the gonadotropin they contain.This findingimplies that in central China,early spring is the best season for collecting carppituitaries for the use of induced spawning.

     

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