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International Journal of Fisheries and Aquatic Studies
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(ICV-Poland) Impact Value: 76.37, Impact Factor: RJIF 5.69
E-ISSN: 2347-5129, P-ISSN: 2394-0506

International Journal of Fisheries and Aquatic Studies

2017, Vol. 5, Issue 3, Part A

The embryonic development of Clarias gariepinus fertilized eggs subjected to different water temperature interval in an indoor hatchery in Jos


Author(s): JA Anpe, KV Absalom, LE Igoche, PC Ofojekwu and BS Audu

Abstract: Embryonic development of Clarias gariepinus fertilized eggs subjected to different water temperature in an indoor hatchery in Jos was investigated. Gravid female and matured male C. gariepinus (800g each) were selected for this experiment. The female was hormonally induced with ovaprim at 0.5mlkg-1 and kept for 14 hours latency period at room temperature of 28.1 0C. The eggs were stripped and carefully mixed with the milt from sacrificed male for fertilization and incubated in aerated five different tanks (2 x 1 x 0.5m3 at 10cm water depth) with different water temperatures (24 0C, 26 0C, 28 0C, 30 0C and 32 0C) in three replicates. The processes of hatching were restricted to a particular temperature according to each treatment with the aid of adjustable electric thermostat heater. Description of the egg developing stages at every 30 minutes interval were made by examining live specimens under a microscope and the process was repeated at the various stages until the eggs hatched into larvae while microphotographs of were taken by digital camera. Water quality parameters apart from the water temperature of source of water used for this study were not significantly different from each other. Embryonic development of C. gariepinus fertilized eggs in treatments 28 0C – 30 0C were not significantly different (p˃0.05) from each other but they were significantly successful (p<0.05) than other treatments (24 0C, 26 0C and 32 0C). Water temperature at 28 0C – 30 0C is highly recommended for successful embryonic development of C. gariepinus fertilized eggs into hatchlings.

Pages: 39-44  |  701 Views  49 Downloads

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How to cite this article:
JA Anpe, KV Absalom, LE Igoche, PC Ofojekwu, BS Audu. The embryonic development of Clarias gariepinus fertilized eggs subjected to different water temperature interval in an indoor hatchery in Jos. Int J Fish Aquat Stud 2017;5(3):39-44.
International Journal of Fisheries and Aquatic Studies