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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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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
07/01/2025 |
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Data da última atualização: |
07/01/2025 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, R. M. dos; AGANETE, I. A.; BOTREL, B. D.; MENEZES, G. R. de O.; NIETO, L. M.; SOUZA JUNIOR, M. D. de; TORAL, F. L. B. |
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Afiliação: |
RAFAEL MONTEIRO DOS SANTOS, UNIVERSIDADE FEDERAL DE MINAS GERAIS; IRIS ASSIS AGANETE, UNIVERSIDADE FEDERAL DE MINAS GERAIS; BRUNA DIEGO BOTREL, UNIVERSIDADE FEDERAL DE MINAS GERAIS; GILBERTO ROMEIRO DE OLIVEIRA MENEZE, CNPGC; LEONARDO MARTIN NIETO, GENEPLUS CONSULTORIA AGROPECUÁRIA LTDA; MAURY DORTA DE SOUZA JUNIOR, GENEPLUS CONSULTORIA AGROPECUÁRIA LTDA; FABIO LUIZ BURANELO TORAL, UNIVERSIDADE FEDERAL DE MINAS GERAIS. |
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Título: |
Multivariate analysis of herd structure and genetic resource indicators in seedstock beef cattle herds. |
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Ano de publicação: |
2024 |
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Fonte/Imprenta: |
Journal of Animal Breeding and Genetics, 2024. |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT - Genetic, environmental, technological and financial resources are used differently in cattle herds that participate in the same breeding programme. The percentages of calves sired by sires within their own herd or from external herds vary across herds, as do the intensities of use of reproductive biotechnologies. These divergences may be related to differences in the indicators of genetic performance for economic traits. The aim of this study was to determine the factors related to herd structure and genetic resource utilization that exert the greatest influence on the genetic merit of seedstock herds within a Nellore breeding programme. The database comprised 21 factors, along with genomic-enhanced expected progeny differences (GE-EPDs) for growth, reproductive and carcass traits, as well as a selection index of animals from 128 herds. By combining principal component analysis and cluster analysis, we were able to group the herds. We identified statistically significant differences (p < 0.05) in the mean values of the factors, GE-EPDs and genetic trends among the groups of herds. Differences in the percentage of sires from external herds and in sire age between the groups of herds were the factors most associated with differences in mean GE-EPDs and genetic trends. Using young sires from other herds or lineages is an effective strategy in animal breeding. By enhancing genetic variability, this approach does not only improve the genetic quality of herds but also accelerates genetic progress in desired traits over time. Therefore, to ensure the success of this strategy, it is crucial that seedstock herds undergo a thorough selection process aimed at maximizing the genetic potential of future generations of beef cattle. MenosABSTRACT - Genetic, environmental, technological and financial resources are used differently in cattle herds that participate in the same breeding programme. The percentages of calves sired by sires within their own herd or from external herds vary across herds, as do the intensities of use of reproductive biotechnologies. These divergences may be related to differences in the indicators of genetic performance for economic traits. The aim of this study was to determine the factors related to herd structure and genetic resource utilization that exert the greatest influence on the genetic merit of seedstock herds within a Nellore breeding programme. The database comprised 21 factors, along with genomic-enhanced expected progeny differences (GE-EPDs) for growth, reproductive and carcass traits, as well as a selection index of animals from 128 herds. By combining principal component analysis and cluster analysis, we were able to group the herds. We identified statistically significant differences (p < 0.05) in the mean values of the factors, GE-EPDs and genetic trends among the groups of herds. Differences in the percentage of sires from external herds and in sire age between the groups of herds were the factors most associated with differences in mean GE-EPDs and genetic trends. Using young sires from other herds or lineages is an effective strategy in animal breeding. By enhancing genetic variability, this approach does not only improve the genetic quality of herds but also a... Mostrar Tudo |
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Thesagro: |
Gado de Corte. |
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Thesaurus Nal: |
Beef cattle. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02416naa a2200217 a 4500
001 2171275
005 2025-01-07
008 2024 bl uuuu u00u1 u #d
100 1 $aSANTOS, R. M. dos
245 $aMultivariate analysis of herd structure and genetic resource indicators in seedstock beef cattle herds.$h[electronic resource]
260 $c2024
520 $aABSTRACT - Genetic, environmental, technological and financial resources are used differently in cattle herds that participate in the same breeding programme. The percentages of calves sired by sires within their own herd or from external herds vary across herds, as do the intensities of use of reproductive biotechnologies. These divergences may be related to differences in the indicators of genetic performance for economic traits. The aim of this study was to determine the factors related to herd structure and genetic resource utilization that exert the greatest influence on the genetic merit of seedstock herds within a Nellore breeding programme. The database comprised 21 factors, along with genomic-enhanced expected progeny differences (GE-EPDs) for growth, reproductive and carcass traits, as well as a selection index of animals from 128 herds. By combining principal component analysis and cluster analysis, we were able to group the herds. We identified statistically significant differences (p < 0.05) in the mean values of the factors, GE-EPDs and genetic trends among the groups of herds. Differences in the percentage of sires from external herds and in sire age between the groups of herds were the factors most associated with differences in mean GE-EPDs and genetic trends. Using young sires from other herds or lineages is an effective strategy in animal breeding. By enhancing genetic variability, this approach does not only improve the genetic quality of herds but also accelerates genetic progress in desired traits over time. Therefore, to ensure the success of this strategy, it is crucial that seedstock herds undergo a thorough selection process aimed at maximizing the genetic potential of future generations of beef cattle.
650 $aBeef cattle
650 $aGado de Corte
700 1 $aAGANETE, I. A.
700 1 $aBOTREL, B. D.
700 1 $aMENEZES, G. R. de O.
700 1 $aNIETO, L. M.
700 1 $aSOUZA JUNIOR, M. D. de
700 1 $aTORAL, F. L. B.
773 $tJournal of Animal Breeding and Genetics, 2024.
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| 1. |  | COELHO, G. A.; MAGALHÃES, M. A. B.; MATIOSKI, A.; RIBAS-FILHO, J. M.; MAGALHAES, W. L. E.; CLARO, F. C.; RAMOS, R. K.; CAMARGO, T. M. S. de; MALAFAIA, O. Pine nanocellulose and bacterial nanocellulose dressings are similar in the treatment of second-degree burn?: experimental study in rats. ABCD. Arquivos Brasileiros de Cirurgia Digestiva, v. 33, n. 2, e1533, 2020. 7 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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