Genotype by sex interaction at different phases during Nile tilapia culture period
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidade Estadual de Maringá
2015
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| _version_ | 1876456700559491072 |
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| author | Grazyella Massako Yoshida |
| author_facet | Grazyella Massako Yoshida |
| contents | Genotype by sex interaction at different phases during Nile tilapia culture period Grazyella Massako Yoshida Carlos Antonio Lopes de Oliveira Natalí Miwa Kunita Gabriel Soriani Rizzato Luiz Alexandre Filho Ricardo Pereira Ribeiro Agrociencias sexual dimorphism Bayesian inference Oreochromis niloticus Co(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. 2015 artículo científico 1806-2636 https://www.redalyc.org/articulo.oa?id=303142432003 en http://www.redalyc.org/revista.oa?id=3031 Acta Scientiarum. Animal Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Animal Sciences (Brasil) Num.4 Vol.37 |
| format | Artículo científico |
| id | redalyc_303142432003 |
| institution | Redalyc |
| language | en |
| publishDate | 2015 |
| publisher | Universidade Estadual de Maringá |
| spellingShingle | Genotype by sex interaction at different phases during Nile tilapia culture period Grazyella Massako Yoshida Agrociencias sexual dimorphism Bayesian inference Oreochromis niloticus Genotype by sex interaction at different phases during Nile tilapia culture period Grazyella Massako Yoshida Carlos Antonio Lopes de Oliveira Natalí Miwa Kunita Gabriel Soriani Rizzato Luiz Alexandre Filho Ricardo Pereira Ribeiro Agrociencias sexual dimorphism Bayesian inference Oreochromis niloticus Co(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. 2015 artículo científico 1806-2636 https://www.redalyc.org/articulo.oa?id=303142432003 en http://www.redalyc.org/revista.oa?id=3031 Acta Scientiarum. Animal Sciences application/pdf Universidade Estadual de Maringá Acta Scientiarum. Animal Sciences (Brasil) Num.4 Vol.37 |
| title | Genotype by sex interaction at different phases during Nile tilapia culture period |
| topic | Agrociencias sexual dimorphism Bayesian inference Oreochromis niloticus |
| url | https://www.redalyc.org/articulo.oa?id=303142432003 |