Volume 25 Issue 5
Sep.  2004
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ZHOU Li-bin, LIU Xiao-chun, LIN Hao-ran, YE wei. Effect of Gonadotropin Hormone-Releasing Hormone Analogs on the Gonadotropin Secretion by the Pituitary of Helmet Catfish (Cranoglanis bouderius) in vitro. Zoological Research, 2004, 25(5): 379-384.
Citation: ZHOU Li-bin, LIU Xiao-chun, LIN Hao-ran, YE wei. Effect of Gonadotropin Hormone-Releasing Hormone Analogs on the Gonadotropin Secretion by the Pituitary of Helmet Catfish (Cranoglanis bouderius) in vitro. Zoological Research, 2004, 25(5): 379-384.

Effect of Gonadotropin Hormone-Releasing Hormone Analogs on the Gonadotropin Secretion by the Pituitary of Helmet Catfish (Cranoglanis bouderius) in vitro

  • Received Date: 1900-01-01
  • Rev Recd Date: 1900-01-01
  • Publish Date: 2004-10-22
  • The gonadotropin (GTH) secretion from pituitary fragments of helmet catfish (Cranoglanis bouderius) was studied by a perfusion incubation system and GTH radiommunoassay (RIA).The results showed that chronic administration of gonadotropin hormone-releasing hormone analogs (GnRH-A) was able to stimulate GTH release from pituitary fragments in vitro,which was consistent to African catfish (Clarias gariepinus) and catfish (Silurus asotus).The insensitivity to chronic administration of GnRH-A was not be observed in the helmet catfish,which was consistent to catfish and African catfish,but different from that in goldfish (Carassius auratus) and Cyprinus carpio haematopters.Repetitive pulse administration of GnRH-A was also able to stimulate GTH release from the pituitary fragments in dose-dependent manner in helmet catfish.These results showed that chronic administration of GnRH-A could have an effect on artificial propagation of helmet catfish.
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