The effect of varying dietary energy on gonad development at first sexual maturity of the Sharptooth catfish (Clarias gariepinus Burchell, 1822)

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dc.contributor.authorCek, Sehriban
dc.contributor.authorYilmaz, Erdal
dc.date.accessioned2024-09-18T20:26:45Z
dc.date.available2024-09-18T20:26:45Z
dc.date.issued2009
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractThe objective of this study was to investigate the effects of five isonitrogenous (35% crude protein) diets having different energy contents; 10.85, 11.82, 12.73, 13.69, and 15.06 MJ DE/kg, respectively, on the gonad development and weight gain of Sharptooth catfish fingerlings. Energy contents of the experimental diets were increased with the increasing amount of soy-acid oil (0, 4, 8.5, 13, 18%) and each group of fish was fed on their respective diets (group I was fed diet I) during 180 days. The gonad maturation was significantly affected by dietary energy. In both sexes, the histological inspections of the gonads did reveal differences among the fish fed different energetic diets. Fish fed diets I, II, and III had significantly heavier and more developed gonads compared to those on diets IV and V. Fish fed the higher energetic diets (IV and V) had partially low numbers of yolky oocytes compared to other groups. The mean GSI values of female and male fish fed with diet III was significantly greater than those fed diets with higher dietary energy; however, higher HSI values were recorded for fish fed with the higher energetic diets (IV and V). Also, the best weight gain for both males and females were recorded from the fish fed diet III (12.73 MJ DE/kg). Therefore, on the basis of the present results, among energy levels tested, 12.73 MJ DE/kg was found to be optimal for healthy gonad development and weight gain.en_US
dc.description.sponsorshipMustafa Kemal Universityen_US
dc.description.sponsorshipThe Mustafa Kemal University supported this study. We would like to wholeheartedly thank Fatih CAN for performing the statistical analysis that was used in this study. We also like to thank Esin Atik-Dogan for helping us in doing histological part of this study.en_US
dc.identifier.doi10.1007/s10499-008-9224-4
dc.identifier.endpage563en_US
dc.identifier.issn0967-6120
dc.identifier.issn1573-143X
dc.identifier.issue6en_US
dc.identifier.scopus2-s2.0-71149101782en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage553en_US
dc.identifier.urihttps://doi.org/10.1007/s10499-008-9224-4
dc.identifier.urihttps://hdl.handle.net/20.500.12483/10516
dc.identifier.volume17en_US
dc.identifier.wosWOS:000272017500005en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofAquaculture Internationalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectHistologyen_US
dc.subjectSoy-acid oilen_US
dc.subjectTestis and oocytes developmenten_US
dc.subjectWeight gainen_US
dc.titleThe effect of varying dietary energy on gonad development at first sexual maturity of the Sharptooth catfish (Clarias gariepinus Burchell, 1822)en_US
dc.typeArticleen_US

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