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dc.contributor.authorValentin, Fernanda Nogueira-
dc.contributor.authorNascimento, Nivaldo Ferreira do-
dc.contributor.authorSilva, Regiane Cristina da-
dc.contributor.authorTsuji, Eduardo Akira-
dc.contributor.authorFaria Paes, Maria do Carmo-
dc.contributor.authorRibeiro Dias Koberstein, Teresa Cristina-
dc.contributor.authorOkada Nakaghi, Laura Satiko-
dc.identifier.citationRevista Brasileira De Zootecnia-brazilian Journal Of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 44, n. 4, p. 161-163, 2015.-
dc.description.abstractIn this study we examined the effects of the maternal age on the fecundity (absolute and relative), egg production, and fertilization rates of Nile tilapia (Oreochromis niloticus). Females were divided into three groups: Group 1 (6 years old), Group 2 (3 years old), and Group 3 (8 months old). Males of eight months were used in all groups. Twice a week, the females'mouths were examined, and if they had eggs, these were removed and transferred to 2-L incubators. No difference was observed in the absolute fecundity between the different maternal age groups. Relative fecundity and egg production was greater in Group 3 (8 months) and fertilization rates were lower in Group 1 (6 years). Younger tilapias are more viable for egg production, because they have better reproductive indexes.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
dc.publisherRevista Brasileira Zootecnia Brazilian Journal Animal Sci-
dc.sourceWeb of Science-
dc.subjectQuality of gametesen
dc.subjectReproduction traitsen
dc.titleMaternal age influences on reproductive rates in Nile tilapia (Oreochromis niloticus)en
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)-
dc.description.affiliationUniv Estadual Paulista, Ctr Aquicultura, Jaboticabal, SP, Brazil-
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias Agr &Vet, Dept Morfol &Fisiol Anim, Jaboticabal, SP, Brazil-
dc.description.affiliationUnespUniversidade Estadual Paulista, Centro de Aquicultura, Jaboticabal, SP, Brasil-
dc.description.affiliationUnespUniversidade Estadual Paulista, Faculdade de Ciências Agrárias e Veterinárias, Departamento de Morfologia e Fisiologia Animal, Jaboticabal, SP, Brasil-
dc.description.sponsorshipIdCNPq: 503730/2007-6-
dc.rights.accessRightsAcesso aberto-
dc.relation.ispartofRevista Brasileira De Zootecnia-brazilian Journal Of Animal Science-
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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