International Journal of Fisheries and Aquatic Research

International Journal of Fisheries and Aquatic Research


International Journal of Fisheries and Aquatic Research
International Journal of Fisheries and Aquatic Research
Vol. 6, Issue 2 (2021)

Effect of various latency period on fertilization, hatchability and survival of fry of Clarias gariepinus in a partial flow through system


Okoro B C, Oyeniyi O V, Soboyejo I O, Nwameka P C

This study on the effect of various latency period on fertilization, hatchability and survival of fry of Clarias gariepinus reared in a partial flow through systems reviewed that latency period of 9hours (T1) had 66.67±1.04% fertilization, 44.17±1.59% hatchability and 17.90±0.65% survival; 10 hours (T2) had 58.33±0.75% fertilization, 50.61±0.77% hatchability and 16.77±0.23 survival; 11 hours latency period (T3) had 68.33±1.24% fertilization, 55.96±0.96% hatchability and 18,38±0,53 survival while 12 hours latency period (T4) had 66.50±0.91% fertilization, 83.54±0.22% hatchability and 13.73±0.82% survival after 14 days of rearing, although there was no significant difference(P>0.5) in all the treatment for fertilization, but there was significant difference (P>0.5) between T4 and other treatments in both hatchability and survival. The water quality recorded during this study was within acceptable limits. This study has reviewed that milt can be used when stored in physiological solution for four hours. More investigations on the course of higher hatchability of fry and low survival recorded in T4 (latency period 12 hours) at 270C are recommended.
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How to cite this article:
Okoro B C, Oyeniyi O V, Soboyejo I O, Nwameka P C. Effect of various latency period on fertilization, hatchability and survival of fry of Clarias gariepinus in a partial flow through system. International Journal of Fisheries and Aquatic Research, Volume 6, Issue 2, 2021, Pages 66-68
International Journal of Fisheries and Aquatic Research