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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
22/12/2023 |
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Data da última atualização: |
22/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RAMOS, P. B. B.; MENEZES, G. R. de O.; SILVA, D. A. DA; LOURENCO, D.; SANTIAGO, G. G.; TORRES JUNIOR, R. A. de A.; SILVA, F. F. E; LOPES, P. S.; VERONEZA, R. |
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Afiliação: |
PEDRO VITAL BRASIL RAMOS, UNIVERSIDADE FEDERAL DE VIÇOSA; GILBERTO ROMEIRO DE OLIVEIRA MENEZE, CNPGC; DELVAN ALVES DA SILVA, UNIVERSIDADE FEDERAL DE VIÇOSA; DANIELA LOURENCO, UNIVERSITY OF GEORGIA; GUSTAVO GARCIA SANTIAGO, GDM SEEDS; ROBERTO AUGUSTO DE A TORRES JUNIOR, CNPGC; FABYANO FONSECA E SILVA, UNIVERSIDADE FEDERAL DE VIÇOSA; PAULO SÁVIO LOPES, UNIVERSIDADE FEDERAL DE VIÇOSA; RENATA VERONEZE, UNIVERSIDADE FEDERAL DE VIÇOSA. |
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Título: |
Genomic analysis of feed efficiency traits in beef cattle using random regression models. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal Animal Breeding and Genetics, 2023. |
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DOI: |
10.1111/jbg.12840. |
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Idioma: |
Inglês |
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Notas: |
Online ahead of print. |
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Conteúdo: |
ABSTRACT - Feed efficiency plays a major role in the overall profitability and sustainability of the beef cattle industry, as it is directly related to the reduction of the animal demand for input and methane emissions. Traditionally, the average daily feed intake and weight gain are used to calculate feed efficiency traits. However, feed efficiency traits can be analysed longitudinally using random regression models (RRMs), which allow fitting random genetic and environmental effects over time by considering the covariance pattern between the daily records. Therefore, the objectives of this study were to: (1) propose genomic evaluations for dry matter intake (DMI), body weight gain (BWG), residual feed intake (RFI) and residual weight gain (RWG) data collected during an 84-day feedlot test period via RRMs; (2) compare the goodness-of-fit of RRM using Legendre polynomials (LP) and B-spline functions; (3) evaluate the genetic parameters behaviour for feed efficiency traits and their implication for new selection strategies. The datasets were provided by the EMBRAPA–GENEPLUS beef cattle breeding program and included 2920 records for DMI, 2696 records for BWG and 4675 genotyped animals. Genetic parameters and genomic breeding values (GEBVs) were estimated by RRMs under ssGBLUP for Nellore cattle using orthogonal LPs and B-spline. Models were compared based on the deviance information criterion (DIC). The ranking of the average GEBV of each test week and the overall GEBV average were compared by the percentage of individuals in common and the Spearman correlation coefficient (top 1%, 5%, 10% and 100%). The highest goodness-of-fit was obtained with linear B-Spline function considering heterogeneous residual variance. The heritability estimates across the test period for DMI, BWG, RFI and RWG ranged from 0.06 to 0.21, 0.11 to 0.30, 0.03 to 0.26 and 0.07 to 0.27, respectively. DMI and RFI presented within-trait genetic correlations ranging from low to high magnitude across different performance test-day. In contrast, BWG and RWG presented negative genetic correlations between the first 3weeks and the other days of performance tests. DMI and RFI presented a high-ranking similarity between the GEBV average of week eight and the overall GEBV average, with Spearman correlations and percentages of individuals selected in common ranging from 0.95 to 1.00 and 93 to 100, respectively. Week 11 presented the highest Spearman correlations (ranging from 0.94 to 0.98) and percentages of individuals selected in common (ranging from 85 to 94) of BWG and RWG with the average GEBV of the entire period of the test. In conclusion, the RRM using linear B-splines is a feasible alternative for the genomic evaluation of feed efficiency. Heritability estimates of DMI, RFI, BWG and RWG indicate enough additive genetic variance to achieve a moderate response to selection. A new selection strategy can be adopted by reducing the performance test to 56days for DMI and RFI selection and 77days for BWG and RWG selection. MenosABSTRACT - Feed efficiency plays a major role in the overall profitability and sustainability of the beef cattle industry, as it is directly related to the reduction of the animal demand for input and methane emissions. Traditionally, the average daily feed intake and weight gain are used to calculate feed efficiency traits. However, feed efficiency traits can be analysed longitudinally using random regression models (RRMs), which allow fitting random genetic and environmental effects over time by considering the covariance pattern between the daily records. Therefore, the objectives of this study were to: (1) propose genomic evaluations for dry matter intake (DMI), body weight gain (BWG), residual feed intake (RFI) and residual weight gain (RWG) data collected during an 84-day feedlot test period via RRMs; (2) compare the goodness-of-fit of RRM using Legendre polynomials (LP) and B-spline functions; (3) evaluate the genetic parameters behaviour for feed efficiency traits and their implication for new selection strategies. The datasets were provided by the EMBRAPA–GENEPLUS beef cattle breeding program and included 2920 records for DMI, 2696 records for BWG and 4675 genotyped animals. Genetic parameters and genomic breeding values (GEBVs) were estimated by RRMs under ssGBLUP for Nellore cattle using orthogonal LPs and B-spline. Models were compared based on the deviance information criterion (DIC). The ranking of the average GEBV of each test week and the overall GEBV average... Mostrar Tudo |
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Thesagro: |
Análise Estatística; Gado de Corte; Genótipo. |
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Thesaurus Nal: |
Beef cattle; Feed intake; Genotype; Nellore. |
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Categoria do assunto: |
-- |
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Marc: |
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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| Registros recuperados : 9 | |
| 2. |  | RODRIGUES, E. P.; TORRES, A. R.; BATISTA, J. S. da S. B.; HUERGO, L.; HUNGRIA, M. A simple, economical and reproducible protein extraction protocol for proteomics studies of soybean roots. Genetics and Molecular Biology, Ribeirão Preto, v. 35, n. 1, suppl., p. 348-352, May 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Soja. |
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| 3. | | GUIMARÃES, A. P.; DINIZ, A.; CALDEIRA, E.; FAÇANHA, A.; OLIVARES, F. L.; HUERGO, L.; PEDROSA, F. O.; BODDEY, R. M. Aprimoramento da técnica purificação da nitrogenase para quantificação da FBN por abundância natural de 15N. In: SEMANA CIENTÍFICA JOHANNA DOBEREINER, 9., 19 a 23 de outubro de 2009, Seropédica. Ciência no Brasil: desafios, avanços e aplicações. Seropédica: Embrapa Agrobiologia, 2009.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 4. | | VILLETH, G. R.; REIS JÚNIOR, F. B.; TONIETTO, A.; HUERGO, L.; SOUZA, E. M. de; PEDROSA, F. O.; FRANCO, O. L.; MEHTA, A. Comparative proteome analysis of Xanthomonas campestris pv. campestris in the interaction with the susceptible and the resistant cultivars of Brassica oleracea. FEMS Microbiology Letters, v. 298, p. 260-266, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| 5. | | VILLETH, G. R.; REIS JÚNIOR, F. B.; TONIETTO, A.; HUERGO, L.; SOUZA, E. M. de; PEDROSA, F. O.; FRANCO, O. L.; MEHTA, A. Comparative proteome analysis of Xanthomonas campestris pv. campestris in the interaction with the susceptible and the resistant cultivars of Brassica oleracea. FEMS Microbiology Letters, v. 298, p. 260-266, 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Cerrados. |
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| 7. | | RABELLO, F. R.; VILLETH, G. R. C.; RABELLO, A. R.; RANGEL, P. H. N.; GUIMARAES, C. M.; HUERGO, L. F.; SOUZA, E. M.; PEDROSA, F. O.; FERREIRA, M. E.; MEHTA, A. Proteomic analysis of upland rice (Oryza sativa L.) exposed to intermittent water deficit. The Protein Journal, v. 33, p. 221-230, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Arroz e Feijão; Embrapa Cerrados; Embrapa Recursos Genéticos e Biotecnologia. |
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| 8. | | FAORO, H.; BRUSAMARELLO, L. C. C.; TRADA-SFEIR, M. Z.; CAMILIOS, N. D.; SCHWAB, S.; STETS, M. I.; CHICORA, V. K.; SOUZA, E. M.; STEFFENS, M. B. R.; CHUBATSU, L. S.; MONTEIRO, R. A.; CRUZ, L. M.; HUERGO, L. F.; RIGO, L. U.; WASSEM, R.; FADEL-PCHETH, C.; MÜLLER-SANTOS, M.; DA ROCHA, W. D.; BONATTO, A. C.; PEDROSA, F. O. Genomic comparioson of herbasírillum spp species. In: INTERNATIONAL SYMPOSIUM ON BIOLOGICAL NITROGEN WITH NON-LEGUMES, 12.; INTERNATIONAL INCT SYMPOSIUM ON NITROGEN BIOLOGICAL FIXATION, 2., 03 a 8 de outubro, 2010, Búzios, RJ. Book of abstracts... Seropédica: Embrapa Agrobiologia, 2010. Slll. 10| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 9. | | RAMOS, H. J. O.; ANDRADE, C. A.; RIZZO, L. E.; MELO, J. A. T.; MAGALHÃES, D. M.; HUERGO, L.; C. W. GALVÃO; PEREIRA, L. F. P.; MARRACCINI, P.; CRUZ, L. M.; SOUZA, E. M.; BLOCH, C. J.; PEDROSA, F. O.; VIEIRA, L. G. E. Differential protein expression analysis of Coffea canephora plants under drought stress. In: ANNUAL MEETING OF SBBQ, 37.; CONGRESS OF THE PABMB, 11., 2008, Águas de Lindóia, SP. Abstracts... Águas de Lindóia: SBBq, 2008. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Recursos Genéticos e Biotecnologia. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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