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Comparative Study of Inducing Broodstock with Natural and Artificial Hormones on Reproductive Performances of Clarias gariepinus

Otoh, A. J., Ekanem, I. E., Okoko, A. C., Asangusung, P. S., George, U. U

Asian Journal of Fisheries and Aquatic Research · pp. 31–38 · Published 21 Mar 2024

10.9734/ajfar/2024/v26i3744

Abstract

This study was conducted to investigate the effects of artificial and natural hormones (ovaprim and pituitary extract) on the reproductive performances of Clarias gariepinus (African catfish). A total of twenty brood stock, 12 males and 8 females with mean weight of 2.0 kg each were selected for breeding following the external morphological characteristics and standard breeding procedure. The water parameters for indoor culture tanks during the study were optimal for breeding: pH 7.31; temperature, 27.6˚C. Dissolved oxygen, 5.18 mg L-1. The result revealed no significant (P > 0.05) differences in water quality parameters between the culture tanks for artificial and natural hormonal applications during the study. The percentage fertilization, hatchability, survival and fry production success were: 89.23%, 93.31%, 87.16% and 69.41%; and 79.02%, 72.56%, 67.32% and 34.67% respectively, for pituitary extract and Ovaprim®. Pituitary extract recorded higher values and significantly performed better (P < 0.05) between the two treatments.  This indicates that natural hormone (pituitary extract) is equally effective and therefore recommended   for   the   artificial   propagation   of Clarias gariepinus.

Catfish breeding fertilization fry survival hatchability induced ovulations and spawning pituitary extract human sustainability pituitary gland

References (9)

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