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| Sousa Júnior,Severino Cavalcante de; Diaz,Iara Del Pilar Solar; Santos,Karina Rodrigues dos; Sousa,José Ernandes Rufino de; Sarmento,José Lindenberg Rocha; Martins Filho,Raimundo. |
| The objective of this study was to evaluate the effect of genotype by environment interaction (GEI) on the weight of Tabapuã cattle at 240 (W240), 365 (W365) and 450 (W450) days of age. In total, 35,732 records of 8,458 Tabapuã animals which were born in the state of Bahia, Brazil, from 1975 to 2001, from 167 sires and 3,707 dams, were used. Two birth seasons were tested as for the environment effect: the dry (D) and rainy (R) ones. The covariance components were obtained by a multiple-trait analysis using Bayesian inference, in which each trait was considered as being different in each season. Covariance components were estimated by software gibbs2f90. As for W240, the model was comprised of contemporary groups and cow age (in classes) as fixed effects;... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bayesian inference; Beef cattle; Genetic correlation; Multiple-trait analysis. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001000005 |
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| Silva,Hugo Teixeira; Silva,Fabyano Fonseca e; Ferreira,Aloízio Soares; Veroneze,Renata; Lopes,Paulo Sávio. |
| ABSTRACT: We evaluated the inclusion of information on genetic relationship into the analysis of crude protein requirement in diets for pigs of Brazilian Piau breed, using Bayesian inference. The animals were assigned to treatments in a completely randomized design in factorial scheme 4 × 2 (crude protein levels × sex) with 12 repetitions per treatment. The evaluations were carried out in the initial, growing and finishing phases, and after slaughter. The traits evaluated were feed conversion (FC), backfat thickness (BF), daily weight gain (DWG), daily feed intake (DFI) and some carcass cuts. Three models were considered to evaluate the inclusion of information on genetic relationship into the analysis: Model I, a simple linear model; Model II, the same... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bayesian inference; Genetic relationship; Model selection; Performance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001300208 |
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| Paiva,José Teodoro de; Mourão,Gerson Barreto; Ferraz,José Bento Sterman; Mattos,Elisângela Chicaroni; Michelan Filho,Tércio; Campos,Bárbara Machado; Eler,Joanir Pereira; Gaya,Leila de Genova. |
| ABSTRACT: The intense selection process for economic traits conducted by the poultry breeding programs has been caused several changes in broiler meat quality. A database belonging to a selection program of a broiler male line was used to estimate heritability and genetic correlations for feed conversion ratio and meat quality traits, which were: initial and final pH, lightness, drip loss, thawing loss and shear force. Two-trait analyses were performed and the components of co(variance) and genetic parameters were determined using the Bayesian approach and the GIBBS3F90 software. The heritability estimate found for feed conversion ratio (0.52) showed high influence of direct additive genetic effects on the expression of this trait; therefore, this trait is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bayesian inference; Animal breeding; Genetic correlation; Indirect selection. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000200129 |
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| Santos, Alexandre Leseur; UEM; Scapinello, Cláudio; UEM; Martins, Elias Nunes; UEM; Granzotto, Fernanda; UEM; Paula, Meybi Carneiro; UEM; Hidalgo, André Marubayashi; UEM. |
| O objetivo do presente trabalho foi avaliar se a seleção para conversão alimentar (CA) e ganho de peso (GP), com base no desempenho individual e ou coletivo dos láparos, pode produzir ganhos genéticos em progênies criadas coletivamente, e animais submetidos à avaliação no período de 50 a 70 dias de idade, utilizando inferência Bayesiana. Realizaram-se seis análises bicaráter. No teste de desempenho foi observado que as características ganho de peso e conversão alimentar em ambos os ambientes tiveram valores para herdabilidade que variam de 0,42 a 0,60. Tanto a correlação genética 0,44 a 0,68 (GP) e 0,23 a 0,56 (CA) como a fenotípica 0,30 (GP) e 0,17 (CA) foram positivas para a mesma característica quando avaliada nos dois ambientes, coletivo ou individual,... |
| Tipo: Pesquisa de Campo; Metodologia |
Palavras-chave: 5.04.02.00-5; Herdabilidade; Ganho de peso; Conversão alimentar; Correlação genética; Inferência bayesiana GENÉTICA E MELHORAMENTO DOS ANIMAIS DOMÉSTICOS Heritability; Weight gain; Feed conversion; Genetic correlation; Bayesian inference. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6262 |
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| 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 |
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| Wei Wang,Mi Sun. |
| Neigh-borjoining, maximum-parsimony, minimum-evolution, maximum-likelihood and Bayesian trees constructed based on 16S rDNA sequences of 181 type strains of Bacillus species and related taxa manifested nine phylogenetic groups. The phylogenetic analysis showed that Bacillus was not a monophyletic group. B. subtilis was in Group 1. Group 4, 6 and 8 respectively consisted of thermophiles, halophilic or halotolerant bacilli and alkaliphilic bacilli. Group 2, 4 and 8 consisting of Bacillus species and related genera demonstrated that the current taxonomic system did not agree well with the 16S rDNA evolutionary trees. The position of Caryophanaceae and Planococcaceae in Group 2 suggested that they might be transferred into Bacillaceae, and the heterogeneity of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacillus phylogeny; Bayesian inference; Evolutionary trees; 16S rDNA. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300013 |
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| Registros recuperados: 27 | |
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