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	Provedor de dados Animal Sciences (2) Autor Lôbo, Raysildo Barbosa (2) Bezerra, Luiz Antônio Framartino (1) Bresolin, Tiago (1) Ferreira, Jorge Luis (1) Freitas, Luara Afonso (1) Garcia, José Américo Soares (1) Lopes, Fernando Brito (1) Minharro, Silvia (1) Moreira, Heverton Luis (1) Paz, Claudia Cristina Paro de (1) Savegnago, Rodrigo Pelicioni (1) Mais... Palavra-chave 5.04.02.00-5 bio-economic model (1) Economic weights (1) Genetic selection (1) Genetics parameters (1) Productive traits. (1) Progenies (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 2019 (1) 2015 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última 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 Breeding goals and economic values for Nellore cattle in a full-cycle production system Animal Sciences Moreira, Heverton Luis; Savegnago, Rodrigo Pelicioni; Freitas, Luara Afonso; Lôbo, Raysildo Barbosa; Bezerra, Luiz Antônio Framartino; Paz, Claudia Cristina Paro de. The objective of this study was to develop a bio-economic model for the estimation of economic values of economically important traits in a full-cycle beef cattle production system. The bio-economic model calculated economic values by simulating the impact of changes in the profit of the system consisting of a 1% increase in each trait of the breeding objective, while the other traits were kept constant. The bio-economic model was effective in estimating the sources of revenues and expenses of the production system. The estimated economic values were, in the order of importance for the full-cycle system, R$ 3.69 for male slaughter weight, R$ 3.63 for male weaning weight, R$ 3.58 for weaning rate, R$ 3.40 for female slaughter weight, R$ 2.30 for female... Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.04.02.00-5 bio-economic model; Economic weights; Genetic selection; Productive traits.. Ano: 2019 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/43361 Registros recuperados: 2 Primeira ... 1 ... Última

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