Genotype by sex interaction at different phases during Nile tilapia culture period

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dc.creatorGrazyella Massako Yoshida
dc.creatorCarlos Antonio Lopes de Oliveira
dc.creatorNatalí Miwa Kunita
dc.creatorGabriel Soriani Rizzato
dc.creatorLuiz Alexandre Filho
dc.creatorRicardo Pereira Ribeiro
dc.date2015
dc.date.accessioned2026-07-07T03:59:00Z
dc.descriptionCo(variance) components and genetic parameters were estimated for performance and morphometric traits in male and female Nile tilapia at different growth periods to verify the need for separate selection programs for the two genders. Data set contained information on 1,720 animals, collected in cage system. Two-trait analyses using Bayesian methodology were conducted and the records of males and females were considered distinct traits. Rates of additive genetic variance, phenotypic and heritability were higher for females in estimates for morphometric traits and higher for males in performance traits. Whereas common hatchery environment showed higher relative importance for males, the nursery caused greater variations in females. The reduction of the genetic correlation rates caused by growth increased the difference between genders and indicated the treatment of males and females as a distinct feature selection.
dc.formatapplication/pdf
dc.identifier1806-2636
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303142432003
dc.identifier.urihttp://hdl.handle.net/123456789/449487
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3031
dc.rightsActa Scientiarum. Animal Sciences
dc.sourceActa Scientiarum. Animal Sciences (Brasil) Num.4 Vol.37
dc.subjectAgrociencias
dc.titleGenotype by sex interaction at different phases during Nile tilapia culture period
dc.typeartículo científico

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Acta Scientiarum. Animal Sciences - Universidade Estadual de Maringá