| |
|
|
 | 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: |
08/01/2019 |
|
Data da última atualização: |
08/01/2019 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
REIMANN, F. A.; BOLIGON, A. A.; CAMPOS, G. S.; CARDOSO, L. L.; JUNQUEIRA, V. S.; CARDOSO, F. F. |
|
Afiliação: |
F. A. Reimann, UFPEL; A. A. Boligon, UFPEL; G. S. Campos, UFPEL; L. L. Cardoso, UFPEL; V. S. Junqueira, UFV; FERNANDO FLORES CARDOSO, CPPSUL. |
|
Título: |
Genetic parameters and accuracy of traditional and genomic breeding values for eye pigmentation, hair coat and breed standard in Hereford and Braford cattle. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Livestock Science, v. 213, p. 44-50, July 2018. |
|
Idioma: |
Inglês |
|
Conteúdo: |
The objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype) and single-step genomic BLUP methodologies, and assess breeding value accuracy gains with the inclusion of genomic information for eye pigmentation (EP), hair coat at weaning (HW) and yearling (HY) and breed standard (BS) in Hereford and Braford cattle. The relationship of these traits with tick resistance was also evaluated. The data used in this study were obtained from Conexão Delta G breeding program and belong to animals born between 1991 and 2014, totaling 169,839 individuals in the pedigree data, 73,615 phenotypes for EP, 81,043 for HW, 41,390 for HY, 28,186 for BS and 16,621 for tick count (TC). The genotypic data, after quality control, retained 41,011 SNP markers and 3,954 samples, including 2841 Braford and 909 Hereford animals with phenotypic records for at least one of the considered traits. Estimated heritabilities through traditional and genomic methods ranged from high to medium magnitude, being, respectively 0.46 ± 0.02 and 0.46 ± 0.02 for EP, 0.44 ± 0.03 and 0.44 ± 0.03 for HW, 0.42 ± 0.02 and 0.41 ± 0.02 for HY and 0.33 ± 0.02 and 0.32 ± 0.02 for BS. Genetic correlations among all traits were of low magnitude (-0.23 < rg < 0.29), except between HW and HY (0.62). The use of genomic information provided higher accuracy levels with gains of 0.28 and 0.14 for EP, 0.13 and 0.07 for HW, 0.16 and 0.30 for HY and 0.10 and 0.04 for BS traits, respectively considering k-means and random grouping cross-validation strategies. Thus, it is possible to obtain genetic gains in adaptation through selection for the studied traits. High genetic correlation between the hair coat evaluated at weaning and yearling indicates that selection for these traits can be performed in advance at weaning. Although low, the favorable correlations between adaptation traits favors the selection of animals that are more adapted to the tropical environmental conditions, using correlated responses to increased eye pigmentation and reduced hair coat and tick count simultaneously. The prediction of breeding values using genomic information by the single-step method should result in more accurate predictions compared to traditional pedigree evaluations. MenosThe objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype) and single-step genomic BLUP methodologies, and assess breeding value accuracy gains with the inclusion of genomic information for eye pigmentation (EP), hair coat at weaning (HW) and yearling (HY) and breed standard (BS) in Hereford and Braford cattle. The relationship of these traits with tick resistance was also evaluated. The data used in this study were obtained from Conexão Delta G breeding program and belong to animals born between 1991 and 2014, totaling 169,839 individuals in the pedigree data, 73,615 phenotypes for EP, 81,043 for HW, 41,390 for HY, 28,186 for BS and 16,621 for tick count (TC). The genotypic data, after quality control, retained 41,011 SNP markers and 3,954 samples, including 2841 Braford and 909 Hereford animals with phenotypic records for at least one of the considered traits. Estimated heritabilities through traditional and genomic methods ranged from high to medium magnitude, being, respectively 0.46 ± 0.02 and 0.46 ± 0.02 for EP, 0.44 ± 0.03 and 0.44 ± 0.03 for HW, 0.42 ± 0.02 and 0.41 ± 0.02 for HY and 0.33 ± 0.02 and 0.32 ± 0.02 for BS. Genetic correlations among all traits were of low magnitude (-0.23 < rg < 0.29), except between HW and HY (0.62). The use of genomic information provided ... Mostrar Tudo |
|
Thesagro: |
Gado de Corte; Gado Hereford; Parâmetro Genético; Seleção. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03171naa a2200229 a 4500
001 2103333
005 2019-01-08
008 2018 bl uuuu u00u1 u #d
100 1 $aREIMANN, F. A.
245 $aGenetic parameters and accuracy of traditional and genomic breeding values for eye pigmentation, hair coat and breed standard in Hereford and Braford cattle.$h[electronic resource]
260 $c2018
520 $aThe objectives of this research were to estimate genetic parameters using a threshold animal model by traditional (pedigree and phenotype) and single-step genomic BLUP methodologies, and assess breeding value accuracy gains with the inclusion of genomic information for eye pigmentation (EP), hair coat at weaning (HW) and yearling (HY) and breed standard (BS) in Hereford and Braford cattle. The relationship of these traits with tick resistance was also evaluated. The data used in this study were obtained from Conexão Delta G breeding program and belong to animals born between 1991 and 2014, totaling 169,839 individuals in the pedigree data, 73,615 phenotypes for EP, 81,043 for HW, 41,390 for HY, 28,186 for BS and 16,621 for tick count (TC). The genotypic data, after quality control, retained 41,011 SNP markers and 3,954 samples, including 2841 Braford and 909 Hereford animals with phenotypic records for at least one of the considered traits. Estimated heritabilities through traditional and genomic methods ranged from high to medium magnitude, being, respectively 0.46 ± 0.02 and 0.46 ± 0.02 for EP, 0.44 ± 0.03 and 0.44 ± 0.03 for HW, 0.42 ± 0.02 and 0.41 ± 0.02 for HY and 0.33 ± 0.02 and 0.32 ± 0.02 for BS. Genetic correlations among all traits were of low magnitude (-0.23 < rg < 0.29), except between HW and HY (0.62). The use of genomic information provided higher accuracy levels with gains of 0.28 and 0.14 for EP, 0.13 and 0.07 for HW, 0.16 and 0.30 for HY and 0.10 and 0.04 for BS traits, respectively considering k-means and random grouping cross-validation strategies. Thus, it is possible to obtain genetic gains in adaptation through selection for the studied traits. High genetic correlation between the hair coat evaluated at weaning and yearling indicates that selection for these traits can be performed in advance at weaning. Although low, the favorable correlations between adaptation traits favors the selection of animals that are more adapted to the tropical environmental conditions, using correlated responses to increased eye pigmentation and reduced hair coat and tick count simultaneously. The prediction of breeding values using genomic information by the single-step method should result in more accurate predictions compared to traditional pedigree evaluations.
650 $aGado de Corte
650 $aGado Hereford
650 $aParâmetro Genético
650 $aSeleção
700 1 $aBOLIGON, A. A.
700 1 $aCAMPOS, G. S.
700 1 $aCARDOSO, L. L.
700 1 $aJUNQUEIRA, V. S.
700 1 $aCARDOSO, F. F.
773 $tLivestock Science$gv. 213, p. 44-50, July 2018.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Solos. |
|
Data corrente: |
26/06/2018 |
|
Data da última atualização: |
12/11/2018 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
PEIXOTO, R. T. dos G.; PARRON, L. M.; SILVA, K. da; BOGNOLA, I. A.; SANTOS, L. M. dos; MAIA, C. M. B. de F. |
|
Afiliação: |
RICARDO TRIPPIA DOS G PEIXOTO, CNPS; LUCILIA MARIA PARRON VARGAS, CNPF; KRISLE DA SILVA, CNPF; ITAMAR ANTONIO BOGNOLA, CNPF; LETÍCIA MACHADO DOS SANTOS, PUC-PR; CLAUDIA MARIA BRANCO DE F MAIA, CNPF. |
|
Título: |
Aspectos dendrométricos de plantio de eucaliptos em solos com biochar. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
In: ENCONTRO BRASILEIRO DE SILVICULTURA, 4., 2018, Ribeirão Preto. Anais... Brasília, DF: Embrapa; Colombo: Embrapa Florestas, 2018. p. 397-400. |
|
Idioma: |
Português |
|
Conteúdo: |
A adição de carvão pirolisado - biochar - ao solo visa a melhoria de suas propriedades físicas, químicas e biológicas e, simultaneamente, para o aumento das reservas estáveis de carbono na matéria orgânica do solo. Assim, neste trabalho, em parceria com uma empresa reflorestadora do Paraná, a Embrapa está estudando o efeito do uso do biochar sobre a adubação comercial adotada pela empresa em plantios de eucalipto. Os resultados dendrométricos aos 3 meses após o plantio indicam potencial da combinação de biochar com adubação considerando o efeito do tratamento com biochar e dose reduzida de adubação na altura da planta e na maior biomassa da parte aérea das plantas no tratamento com biochar e dose de fertilizante comercial. |
|
Palavras-Chave: |
Biocarvão. |
|
Thesagro: |
Adubação; Biomassa; Eucalipto; Solo. |
|
Thesaurus NAL: |
Biochar; Eucalyptus. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 01564naa a2200265 a 4500
001 2092791
005 2018-11-12
008 2018 bl uuuu u00u1 u #d
100 1 $aPEIXOTO, R. T. dos G.
245 $aAspectos dendrométricos de plantio de eucaliptos em solos com biochar.$h[electronic resource]
260 $c2018
520 $aA adição de carvão pirolisado - biochar - ao solo visa a melhoria de suas propriedades físicas, químicas e biológicas e, simultaneamente, para o aumento das reservas estáveis de carbono na matéria orgânica do solo. Assim, neste trabalho, em parceria com uma empresa reflorestadora do Paraná, a Embrapa está estudando o efeito do uso do biochar sobre a adubação comercial adotada pela empresa em plantios de eucalipto. Os resultados dendrométricos aos 3 meses após o plantio indicam potencial da combinação de biochar com adubação considerando o efeito do tratamento com biochar e dose reduzida de adubação na altura da planta e na maior biomassa da parte aérea das plantas no tratamento com biochar e dose de fertilizante comercial.
650 $aBiochar
650 $aEucalyptus
650 $aAdubação
650 $aBiomassa
650 $aEucalipto
650 $aSolo
653 $aBiocarvão
700 1 $aPARRON, L. M.
700 1 $aSILVA, K. da
700 1 $aBOGNOLA, I. A.
700 1 $aSANTOS, L. M. dos
700 1 $aMAIA, C. M. B. de F.
773 $tIn: ENCONTRO BRASILEIRO DE SILVICULTURA, 4., 2018, Ribeirão Preto. Anais... Brasília, DF: Embrapa; Colombo: Embrapa Florestas, 2018. p. 397-400.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Solos (CNPS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
