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| Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Pecuária Sul. |
Data corrente: |
03/10/2022 |
Data da última atualização: |
03/10/2022 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
COMIN, H.; CAMPOS, G. S.; DOMINGUES, R.; GASPAR, E. B.; SOLLERO, B. P.; CARDOSO, F. F. |
Afiliação: |
HELENA B. COMIN, Universidade Federal de Pelotas; G. S. CAMPOS, Universidade Estadual Paulista; ROBERT DOMINGUES, CPPSUL; EMANUELLE BALDO GASPAR, CPPSUL; BRUNA PENA SOLLERO, GPM; FERNANDO FLORES CARDOSO, CPPSUL. |
Título: |
Genetic parameters and accuracy of traditional and genomic breeding values for resistance to infectious bovine keratoconjunctivitis in Hereford. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Livestock Science, v. 264, 105078, Oct. 2022. |
Idioma: |
Inglês |
Conteúdo: |
A B S T R A C T The objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype), single-step genomic BLUP (ssGBLUP) and Weighted ssGBLUP (WssGBLUP) methods, and assess the relative increase in accuracy with the addition of genomic information on the estimation of breeding values for the incidence of infectious bovine keratoconjunctivitis (IBK) in Hereford cattle. The data used in this study were obtained from animals belonging to four farms of Delta G breeders association and genetically evaluated by the Delta G breeding program, born between 2015 and 2017, totaling 293,716 individuals in the pedigree data and 1,579 phenotypes for IBK (1 = absence of disease or 2 = presence of disease). The genotypic data, after quality control, retained 37,505 SNP markers and 1,401 samples. A Bayesian framework and a threshold animal model were used to estimate variance components and to predict breeding values. Animals with genotype and phenotype for the traits studied were divided into 3 groups by random and k-means clustering cross-validation strategies. The estimate of direct heritability for resistance to IBK was 0.12 ± 0.01 and 0.10 ± 0.01 through PBLUP and ssGBLUP methods. The mean realized prediction accuracies based on linear regression statistics were 0.36, 0.65 and 0.70, respectively for PBLUP, ssGBLUP and WssGBLUP; therefore, the use of the genomic relationship matrices was superior to the pedigree-based method. When using the WssGBLUP method, there was an additional increase in prediction accuracy when compared to the ssGBLUP method, which was already substantially better than PBLUP. The prediction of breeding values using genomic information by the single-step methods should result in more accurate selection decisions compared to traditional pedigree evaluations and, consequently, genomic selection can be readily applied with moderately high reliability to help reduce the incidence of IBK in Hereford cattle. MenosA B S T R A C T The objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype), single-step genomic BLUP (ssGBLUP) and Weighted ssGBLUP (WssGBLUP) methods, and assess the relative increase in accuracy with the addition of genomic information on the estimation of breeding values for the incidence of infectious bovine keratoconjunctivitis (IBK) in Hereford cattle. The data used in this study were obtained from animals belonging to four farms of Delta G breeders association and genetically evaluated by the Delta G breeding program, born between 2015 and 2017, totaling 293,716 individuals in the pedigree data and 1,579 phenotypes for IBK (1 = absence of disease or 2 = presence of disease). The genotypic data, after quality control, retained 37,505 SNP markers and 1,401 samples. A Bayesian framework and a threshold animal model were used to estimate variance components and to predict breeding values. Animals with genotype and phenotype for the traits studied were divided into 3 groups by random and k-means clustering cross-validation strategies. The estimate of direct heritability for resistance to IBK was 0.12 ± 0.01 and 0.10 ± 0.01 through PBLUP and ssGBLUP methods. The mean realized prediction accuracies based on linear regression statistics were 0.36, 0.65 and 0.70, respectively for PBLUP, ssGBLUP and WssGBLUP; therefore, the use of the genomic relationship matrices was superior to the pedigree-based ... Mostrar Tudo |
Palavras-Chave: |
Resistência a doença; Seleção genômica. |
Thesagro: |
Gado de Corte; Parâmetro Genético. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02742naa a2200229 a 4500 001 2147076 005 2022-10-03 008 2022 bl uuuu u00u1 u #d 100 1 $aCOMIN, H. 245 $aGenetic parameters and accuracy of traditional and genomic breeding values for resistance to infectious bovine keratoconjunctivitis in Hereford.$h[electronic resource] 260 $c2022 520 $aA B S T R A C T The objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype), single-step genomic BLUP (ssGBLUP) and Weighted ssGBLUP (WssGBLUP) methods, and assess the relative increase in accuracy with the addition of genomic information on the estimation of breeding values for the incidence of infectious bovine keratoconjunctivitis (IBK) in Hereford cattle. The data used in this study were obtained from animals belonging to four farms of Delta G breeders association and genetically evaluated by the Delta G breeding program, born between 2015 and 2017, totaling 293,716 individuals in the pedigree data and 1,579 phenotypes for IBK (1 = absence of disease or 2 = presence of disease). The genotypic data, after quality control, retained 37,505 SNP markers and 1,401 samples. A Bayesian framework and a threshold animal model were used to estimate variance components and to predict breeding values. Animals with genotype and phenotype for the traits studied were divided into 3 groups by random and k-means clustering cross-validation strategies. The estimate of direct heritability for resistance to IBK was 0.12 ± 0.01 and 0.10 ± 0.01 through PBLUP and ssGBLUP methods. The mean realized prediction accuracies based on linear regression statistics were 0.36, 0.65 and 0.70, respectively for PBLUP, ssGBLUP and WssGBLUP; therefore, the use of the genomic relationship matrices was superior to the pedigree-based method. When using the WssGBLUP method, there was an additional increase in prediction accuracy when compared to the ssGBLUP method, which was already substantially better than PBLUP. The prediction of breeding values using genomic information by the single-step methods should result in more accurate selection decisions compared to traditional pedigree evaluations and, consequently, genomic selection can be readily applied with moderately high reliability to help reduce the incidence of IBK in Hereford cattle. 650 $aGado de Corte 650 $aParâmetro Genético 653 $aResistência a doença 653 $aSeleção genômica 700 1 $aCAMPOS, G. S. 700 1 $aDOMINGUES, R. 700 1 $aGASPAR, E. B. 700 1 $aSOLLERO, B. P. 700 1 $aCARDOSO, F. F. 773 $tLivestock Science$gv. 264, 105078, Oct. 2022.
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Embrapa Pecuária Sul (CPPSUL) |
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| Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria Tropical. Para informações adicionais entre em contato com cnpat.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Agroindústria Tropical. |
Data corrente: |
08/09/2015 |
Data da última atualização: |
02/03/2016 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
RIBEIRO, F. W. M.; LAURENTINO, L. da S.; ALVES, C. R.; BASTOS, M. do S. R.; COSTA, J. M. C da; CANUTO, K. M.; FURTADO, R. F. |
Afiliação: |
Francisco Wanderson Moreira Ribeiro, Universidade Federal do Ceará - Departamento de Química; Larissa da Silva Laurentino, Universidade Federal do Ceará - Departamento de Engenharia de Alimentos; Carlucio Roberto Alves, Universidade Federal do Ceará - Departamento de Química; MARIA DO SOCORRO ROCHA BASTOS, CNPAT; José Maria Correia da Costa, Universidade Federal do Ceará - Departamento de Engenharia de Alimentos; KIRLEY MARQUES CANUTO, CNPAT; ROSELAYNE FERRO FURTADO, CNPAT. |
Título: |
Chemical modification of gum arabic and its application in the encapsulation of Cymbopogon citratus essential oil. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Journal of Applied Polymer Science, v. 132, n. 8, 2015. Projeto: 02.12.01.029.00.03 |
Idioma: |
Português |
Palavras-Chave: |
Biopolimeros; Polimeros; Polisacarideos; Renovável; Reticulação. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00771naa a2200241 a 4500 001 2023406 005 2016-03-02 008 2015 bl uuuu u00u1 u #d 100 1 $aRIBEIRO, F. W. M. 245 $aChemical modification of gum arabic and its application in the encapsulation of Cymbopogon citratus essential oil.$h[electronic resource] 260 $c2015 653 $aBiopolimeros 653 $aPolimeros 653 $aPolisacarideos 653 $aRenovável 653 $aReticulação 700 1 $aLAURENTINO, L. da S. 700 1 $aALVES, C. R. 700 1 $aBASTOS, M. do S. R. 700 1 $aCOSTA, J. M. C da 700 1 $aCANUTO, K. M. 700 1 $aFURTADO, R. F. 773 $tJournal of Applied Polymer Science$gv. 132, n. 8, 2015. Projeto: 02.12.01.029.00.03
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