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	Provedor de dados Animal Sciences (2) Autor Bresolin, Tiago (2) Braz, Camila Urbano (1) Breda, Fernanda Cristina (1) Everling, Dionéia Magda (1) Ferreira, Jorge Luis (1) Garcia, José Américo Soares (1) Lopes, Fernando Brito (1) Lôbo, Raysildo Barbosa (1) Minharro, Silvia (1) Rorato, Paulo Roberto Nogara (1) Mais... Palavra-chave Bayesian inference (1) Beef cattle (1) Genetic correlation (1) Genetic parameters. (1) Genetics parameters (1) Progenies (1) Variance components (1) Weight (1) Zebu. (1) Zootecnia: Produção Animal: Genética e Melhoramento Animal co-variance (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2015 (2) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Influence of genotype-environment interaction on the classification of Nellore bulls in Southern Brazil Animal Sciences Bresolin, Tiago; Everling, Dionéia Magda; Rorato, Paulo Roberto Nogara; Braz, Camila Urbano; Breda, Fernanda Cristina. The aim of this study was to assess the occurrence of genotype-environment interaction, as well as its effects on the magnitude of genetic parameters and the classification of Nellore breeding bulls for the trait adjusted weight at 205 days (W205) on Southern Brazil. The components of (co)variance were estimated by Bayesian inference, using a linear-linear animal model in a bi-trait analysis. The proposed model for the analyses considers as random the direct additive genetic and maternal effects and residual effects, and as fixed effects the contemporary groups, sex, season of birth and weighing, and calving age as covariable  (linear and quadratic effects). The a posteriori mean estimates of the direct heritabilities for W205 in the three States varied... Tipo: Info:eu-repo/semantics/article Palavras-chave: Beef cattle; Variance components; Genetic correlation; Bayesian inference; Genetic parameters.. Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/23602 Effect of age of dam on weight of calf in the genetic assessment of Zebu cattle in random regression models Animal Sciences Ferreira, Jorge Luis; Lopes, Fernando Brito; Bresolin, Tiago; Garcia, José Américo Soares; Minharro, Silvia; Lôbo, Raysildo Barbosa. Current analysis estimated co-variance components and genetic parameters for growth traits by random regression models taking into consideration the cow’s age on the weight of calves. Genealogical data and records on weights of male and female Zebu cattle, born between 1993 and 2011, were provided by the National Association of Breeders and Researchers (ANCP). Different models were compared by Akaike and Bayesian criteria. Legendre’s orthogonal polynomials were used to model the direct and maternal genetic effects of maternal and animal permanent environmental effects. Joint modeling of cow age at the moment their progenies were weighed resulted in more accurate estimates of co-variance components and genetics parameters. Co-variance functions of the cow... Tipo: Info:eu-repo/semantics/article Palavras-chave: Zootecnia: Produção Animal: Genética e Melhoramento Animal co-variance; Genetics parameters; Progenies; Weight; Zebu.. Ano: 2015 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/25355 Registros recuperados: 2 Primeira ... 1 ... Última

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