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dc.contributor.authorRaphael, Orji
dc.contributor.authorInyang, N.M.
dc.date.accessioned2018-02-22T09:18:01Z
dc.date.available2018-02-22T09:18:01Z
dc.date.issued1996
dc.identifier.urihttp://hdl.handle.net/11671/1937
dc.description.abstractInduced breeding of Clarias gariepinus was conducted monthly in hapa pens, set up in Otamiri river for nineteen months (June 1993 - December 1994). Results of natural fertilization were unsatisfactory as few eggs were.fertilized, Mean relative fecundity, percentage fertilization, percentage hatching and percentage fry survival were: 15.86 ± 1.95 x 10', 18.92 ± 5.28%, 13.50 ± 3.8% and 6.42 ± 0.72%. Results from artificial fertilization were as follows: Mean relative fecundity, 13.80 ± 2.85 x 103, percentage fertilization, 81.91 ± 2.28%, percentage hatching, 86.10 ± 2.46% and percentage fry survival, 21.40 ± 1.89% respectively. The success of artificial fertilization depended largely on the latency period of 9-11 hours and this suggests that induced breeding in pens is feasible. The poor results from natural fertilization were attributed to lack of adequate substrate for the male fish to display courtship an,d\subsequent fertilization of eggs.en_US
dc.language.isoenen_US
dc.publisherLVFOen_US
dc.relation.ispartofseriesVolume;7
dc.subjectFishingen_US
dc.subjectFisheriesen_US
dc.subjectFish Speciesen_US
dc.titleStudies on induced breeding of Clarias gariepinus (Burchell, 1822) in Hapa Pensen_US
dc.typeArticleen_US


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