作　　者： ; ;

机构地区： 中山大学生命科学学院

出　　处： 《水产学报》 2001年第5期393-397,共5页

摘　　要： 以珠江流域站为研究对象，分别在性腺发育早期、性腺发育晚期、性腺发育成熟与产卵前期、性腺退化期注射促黄体素释放激素类似物和多巴胺Ｄ２受体拮抗物，处理后６ｈ、１２ｈ、２４ｈ测定血液中的促性腺激素水平变化。结果表明，在性腺发育的各个时期，促黄体素释放激素类似物和多巴胺Ｄ２受体拮抗物联合注射能显著刺激站促性腺激素分泌；站脑垂体促性腺激素的分泌受下丘脑释放的促性腺素释放激素和多巴胺的双重调节，多巴胺只能抑制促性腺素释放激素诱导的促性腺激素分泌。在建立站人工繁殖技术时，可采用促黄体素释放激素类似物和多巴胺Ｄ２受体拮抗物联合注射方法。 To catfish( Silurus asotus) of Pearl Rever, in the stage of early gonadal development, the stage of late gonadal development, mature and preovulatory stage, and the sexually regressed stage, luteinizing hormone-releasing hormone analogue (LHRH-A) and dopamine antagonist, domperidone(DOM) were injected, and then GtH levels of serum were sampled and assayed using the radioimmunoassay after 6h, 12h and 24h. The results indicated that it could enhance significantly GtH levels of serum by injection of LHRH-A plus DOM in every gonadal periods; GtH secretion in catfish was under a dual control of gonadotropin-releasing hormone (GuRH) and dopamine ( DA) released from the hypothalamus, and DA could only inhibit 0tH induced by GnRH from releasing; the combination of LHRH-A and DOM could be used to induce ovulation in catfish.

关 键 词： 鲇 促性腺激素 促黄体素释放激素 多巴胺受体拮抗物

领　　域： [农业科学] [农业科学] [农业科学]