Journal of Fisheries International

Year: 2006
Volume: 1
Issue: 1
Page No. 17 - 20

Reproductive Performance of African Clariid Catfish Clarias gariepinus Broodstocks on Varying Maternal Stress

Authors : Adebayo, O.T

Abstract: Effects of maternal stress on the reproductive performance of Clarias gariepinus broodstocks were investigated using female broodstocks of 450 550 g. The experimental broodstocks were subjected to transportation stress (treatment 1), handling stress (treatment II), oxygen stress: one hour out of water before hormone administration (treatment III), two hours out of water before hormone administration (treatment IV), three hours out of water before hormone administration (treatment V), four hours out of water (treatment VI), and control {well conditioned before hormone administration}(treatment VII). The results showed that there was significant difference (P < 0.05) among the treatments with the control having the best result of 75%, 65%, 13.2%, 77.5%, and 22.5% as %fertilization, %hatching, %deformed larvae, %survival and mortality, respectively. The broodstocks kept out of water for four hours before hormone administration gives the least result with 47.5%, 29.5%, 28.14%, 52.5%, and 47.5% as %fertilization, %hatching, %deformed larvae, %survival and %mortality, respectively. Based on the results of this study, proper handling and conditioning of female broodstocks is recommended to ensure successful induced breeding.

How to cite this article:

Adebayo, O.T , 2006. Reproductive Performance of African Clariid Catfish Clarias gariepinus Broodstocks on Varying Maternal Stress. Journal of Fisheries International, 1: 17-20.

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