Prediction of genomic breeding values of milk traits in Brazilian Saanen goats

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniv Fed Ceara-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorNatl Council Sci & Technol Dev CNPq-
Autor(es): dc.creatorSousa, Diego Rodrigues de-
Autor(es): dc.creatorNascimento, Andre Vieira do [UNESP]-
Autor(es): dc.creatorLobo, Raimundo Nonato Braga-
Data de aceite: dc.date.accessioned2022-02-22T00:56:03Z-
Data de disponibilização: dc.date.available2022-02-22T00:56:03Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-04-16-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/jbg.12550-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/209331-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/209331-
Descrição: dc.descriptionThe study's objective was to compare the genomic prediction ability methods for the traits milk yield, milk composition and somatic cell count of Saanen Brazilian goats. Nine hundred forty goats, genotyped with an Axiom_OviCap (Caprine) panel, Affimetrix customized array with 62,557 single nucleotide polymorphisms (SNPs), were used for the genomic selection analyses. The genomic methods studied to estimate the effects of SNPs and direct genomic values (DGV) were as follows: (a) genomic BLUP (GBLUP), (b) Bayes C pi and (c) Bayesian Lasso (BLASSO). Estimated breeding values (EBV) and deregressed estimated breeding values (dEBV) were used as response variables for the genomic predictions. The prediction ability was assessed by Pearson's correlation between DGV and response variables (EBV and dEBV). Regression coefficients of the response variables on the DGV were obtained to verify if the genomic predictions were biased. In addition, the mean square error of prediction (MSE) was used as a measure of verification of model fit to the data. The means of prediction accuracy, when EBV was used as a response variable, were 0.68, 0.68 and 0.67 for GBLUP, Bayes C pi and BLASSO, respectively. With dEBV, the mean prediction accuracy was 0.50 for all models. The averages of the EBV regression coefficients on DGV were 1.08 for all models (GBLUP, Bayes C pi and BLASSO), higher than those obtained for the regression coefficient of dEBV on DGV, which presented values of 1.05, 1.05 and 1.08 for GBLUP, Bayes C pi and BLASSO, respectively. None of the methods stood out in terms of prediction ability; however, the GBLUP method was the most appropriate for estimating the DGV, in a slightly more reliable and less biased way, besides presenting the lowest computational cost. In the context of the present study, EBV was the preferred response variables considering the genomic prediction accuracy despite dEBV also presented lower bias.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionUniv Fed Ceara, Dept Anim Sci, Fortaleza, Ceara, Brazil-
Descrição: dc.descriptionSao Paulo State Univ Julio de Mesquita Filho, Fac Agr & Vet Sci Jaboticabal, Anim Sci Dept 1, Jaboticabal, Brazil-
Descrição: dc.descriptionBrazilian Agr Res Corp EMBRAPA, Embrapa Caprinos & Ovinos, Estr Sobral Groairas, Sobral, Brazil-
Descrição: dc.descriptionNatl Council Sci & Technol Dev CNPq, Lago Sul, Brazil-
Descrição: dc.descriptionSao Paulo State Univ Julio de Mesquita Filho, Fac Agr & Vet Sci Jaboticabal, Anim Sci Dept 1, Jaboticabal, Brazil-
Formato: dc.format11-
Idioma: dc.languageen-
Publicador: dc.publisherWiley-Blackwell-
Relação: dc.relationJournal Of Animal Breeding And Genetics-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectBayesian methods-
Palavras-chave: dc.subjectgenome&#8208-
Palavras-chave: dc.subjectwide selection-
Palavras-chave: dc.subjectmulti&#8208-
Palavras-chave: dc.subjectstep-
Palavras-chave: dc.subjectprediction ability-
Palavras-chave: dc.subjectsmall populations-
Título: dc.titlePrediction of genomic breeding values of milk traits in Brazilian Saanen goats-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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