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Dietary administration of dehydroepiandrosterone hormone influences sex differentiation of hybrid red tilapia (O. niloticus x O. mossambicus) larvae
dc.contributor.author | Mohamed, Asaad H. | |
dc.contributor.author | Traifalgar, Rex Ferdinand M. | |
dc.contributor.author | Serrano, Augusto E., Jr. | |
dc.contributor.author | Peralta, Jose P. | |
dc.contributor.author | Pedroso, Fiona L. | |
dc.date.accessioned | 2015-05-26T11:21:47Z | |
dc.date.available | 2015-05-26T11:21:47Z | |
dc.date.issued | 2012 | |
dc.identifier.citation | Mohamed, A. H., Traifalgar, R. F. M., Serrano Jr., A. E., Peralta, J. P., & Pedroso, F. L. (2012). Dietary administration of dehydroepiandrosterone hormone influences sex differentiation of hybrid red tilapia (O. niloticus x O. mossambicus) larvae. Journal of Fisheries and Aquatic Science, 7(6), 447-453. | en |
dc.identifier.issn | 1816-4927 | |
dc.identifier.uri | http://hdl.handle.net/10862/2255 | |
dc.description.abstract | Effects of a steroid hormone Dehydroepiandrosterone (DHEA) on sex differentiation of hybrid red Tilapia Oreochromis niloticus x O. mossambicus larvae were investigated. Three day-old tilapia larvae were fed diets supplemented with varying concentrations of DHEA (0, 20, 40, 80 and 160 mg kg-1 feed) for 24 days. A positive control group fed with diet containing 60 mg kg-1 of 17α-methyl testosterone was also included in the experimental run. Results indicate that among the DHEA treatment groups, larvae fed with 160 mg kg-1 DHEA showed the highest percentage of males that is comparable to the number of differentiated male fish observed in treatment group receiving the 17α-methyl testosterone as the positive control group. DHEA supplementation also improves weight gain and enhances feed conversion ratio. These findings suggest that DHEA can be used as a dietary supplement to induce masculinization and can improve the growth performance of tilapia larvae. | en |
dc.description.sponsorship | This study was funded and supported by the Ministry of High Education and Scientific Research, Training and Extension Department through the efforts of Sudan University of Science and Technology-Sudan, under Scholarship Grant Permit No. 156/17A/5A/2009-2012. | en |
dc.language.iso | en | en |
dc.publisher | Academic Journals, New York | en |
dc.relation.uri | http://www.scialert.net/qredirect.php?doi=jfas.2012.447.453&linkid=pdf | |
dc.subject | Oreochromis niloticus | en |
dc.title | Dietary administration of dehydroepiandrosterone hormone influences sex differentiation of hybrid red tilapia (O. niloticus x O. mossambicus) larvae | en |
dc.type | Article | en |
dc.identifier.doi | 10.3923/jfas.2012.447.453 | |
dc.citation.volume | 7 | |
dc.citation.issue | 6 | |
dc.citation.spage | 447 | |
dc.citation.epage | 453 | |
dc.citation.journalTitle | Journal of Fisheries and Aquatic Science | en |
dc.subject.asfa | growth | en |
dc.subject.asfa | hybrids | en |
dc.subject.asfa | feeding experiments | en |
dc.subject.asfa | steroids | en |
dc.subject.asfa | hormones | en |
dc.subject.asfa | fish larvae | en |
dc.subject.asfa | feed conversion efficiency | en |
dc.subject.asfa | sex | en |
dc.subject.asfa | sex hormones | en |
dc.subject.asfa | testosterone | en |
dc.subject.asfa | dietary supplements | en |
dc.subject.asfa | dehydroepiandrosterone | en |
dc.subject.asfa | steroid hormones | en |
dc.subject.asfa | sex differentiation | en |
dc.identifier.essn | 1996-0751 |
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These papers were contributed by Department staff to various national and international journals.