Induced Ovulation in Catfish Heteropneustes fossilis (Bloch) with Three Native GnRH Peptides

Devika pillai; Deoraj Alok; Lalit C. Garg

doi:10.56093/ft.v41i1.16969

Induced Ovulation in Catfish Heteropneustes fossilis (Bloch) with Three Native GnRH Peptides

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Authors

Devika pillai College of Fisheries, Panangad, Kochi
Deoraj Alok Center of Marine Biotechnology, 701 E, Pratt Street, Baltimore
Lalit C. Garg Gene Regulation Laboratory, National Institute of Immunology, New Delhi

https://doi.org/10.56093/ft.v41i1.16969

Keywords:

Native GnRH peptides, induced spawning, mGnRH, sGnRH, cGnRH II, catfish, Heteropneustes fossilis

Abstract

The effect of three native GnRH peptides, viz; salmon GnRH (sGnRH), mammalian GnRH (mGnRH) and chicken GnRH II (cGnRH II), on spawning of the catfish Heteropneustes fossilis (Bloch) was compared. D-Lys6sGnRH, was used as the control. The peptides were synthesized by the Merrifield solid phase method, purified by HPLC and reconstituted in saline. The fish were injected intramuscularly. cGnRH II was more potent than both sGnRH and mGnRH in inducing spawning in this species of catfish. There was no significant difference in the average diameter of the egg obtained using the three peptides.

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Submitted

2012-04-21

Published

2025-06-10

Issue

Vol. 41 No. 1 (2004)

Section

Articles

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How to Cite

pillai, D., Alok, D., & Garg, L. C. (2025). Induced Ovulation in Catfish Heteropneustes fossilis (Bloch) with Three Native GnRH Peptides. Fishery Technology, 41(1). https://doi.org/10.56093/ft.v41i1.16969