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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
10/08/2021 |
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Data da última atualização: |
29/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DALTRO, D. dos S.; PADILHA, A. H.; GAMA, L. T. da; SILVA, M. V. G. B.; COBUCI, J. A. |
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Afiliação: |
DARLENE DOS SANTOS DALTRO, Universidade Federal do Rio Grande do Sul; ALESSANDRO HAIDUCK PADILHA, Universidade Federal do Rio Grande do Sul; LUÍS TELO DA GAMA, Universidade de Lisboa; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL; JAIME ARAUJO COBUCI, Universidade Federal do Rio Grande do Sul. |
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Título: |
Breed, heterosis, and recombination effects for lactation curves in Brazilian cattle. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, v. 50, e20200085, 2021. |
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DOI: |
https://doi.org/10.37496/rbz5020200085 |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this study was to estimate the breed, heterosis, and recombination effects on different components of the lactation curve of Girolando cattle. The dataset used consisted of 12,121 purebred cows of Holstein (H) and Gyr (G) breeds, and six H×G crossbred cows (Girolando). The model used presents random effects of herd and cow, regression coefficient associated with linear effect of proportion of H breed, regression coefficient associated with the linear effect of heterosis between H and G breeds, regression coefficient associated with the linear effect of recombination between H and G breeds, and random effect of residual. Dijkstra?s (DJ), Nelder's (ND), Wilmink's (WL), and Wood's (WD) models were tested to fit production records of these different genetic groups. These models were then tested according to evaluation criteria of quality of fit (AIC, BIC, and RMSE), and the two best models (WD and WL) were chosen for estimation of 305-day milk yield (MY305), peak yield, time to peak, and persistency of milk yield. The breed effect was significant for all traits and components of the lactation curve. The heterosis effect was significant for all traits, and was more significant for MY305 (945.62±79.17 kg). Peak yield was the component of lactation curve that presented the most significant heterosis effect, partially explaining the heterosis effect (12 to 21%) found for MY305. The recombination effect was positive only for lactation period and time to peak of lactation in Girolando cows. MenosThe objective of this study was to estimate the breed, heterosis, and recombination effects on different components of the lactation curve of Girolando cattle. The dataset used consisted of 12,121 purebred cows of Holstein (H) and Gyr (G) breeds, and six H×G crossbred cows (Girolando). The model used presents random effects of herd and cow, regression coefficient associated with linear effect of proportion of H breed, regression coefficient associated with the linear effect of heterosis between H and G breeds, regression coefficient associated with the linear effect of recombination between H and G breeds, and random effect of residual. Dijkstra?s (DJ), Nelder's (ND), Wilmink's (WL), and Wood's (WD) models were tested to fit production records of these different genetic groups. These models were then tested according to evaluation criteria of quality of fit (AIC, BIC, and RMSE), and the two best models (WD and WL) were chosen for estimation of 305-day milk yield (MY305), peak yield, time to peak, and persistency of milk yield. The breed effect was significant for all traits and components of the lactation curve. The heterosis effect was significant for all traits, and was more significant for MY305 (945.62±79.17 kg). Peak yield was the component of lactation curve that presented the most significant heterosis effect, partially explaining the heterosis effect (12 to 21%) found for MY305. The recombination effect was positive only for lactation period and time to peak of lacta... Mostrar Tudo |
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Palavras-Chave: |
Heterose; Persistência; Rendimento máximo. |
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Thesagro: |
Cruzamento Animal; Curva de Lactação; Gado Leiteiro; Raça. |
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Thesaurus Nal: |
Girolando. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225022/1/Breed-heterosis.pdf
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Marc: |
LEADER 02341naa a2200277 a 4500
001 2133418
005 2021-12-29
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.37496/rbz5020200085$2DOI
100 1 $aDALTRO, D. dos S.
245 $aBreed, heterosis, and recombination effects for lactation curves in Brazilian cattle.$h[electronic resource]
260 $c2021
520 $aThe objective of this study was to estimate the breed, heterosis, and recombination effects on different components of the lactation curve of Girolando cattle. The dataset used consisted of 12,121 purebred cows of Holstein (H) and Gyr (G) breeds, and six H×G crossbred cows (Girolando). The model used presents random effects of herd and cow, regression coefficient associated with linear effect of proportion of H breed, regression coefficient associated with the linear effect of heterosis between H and G breeds, regression coefficient associated with the linear effect of recombination between H and G breeds, and random effect of residual. Dijkstra?s (DJ), Nelder's (ND), Wilmink's (WL), and Wood's (WD) models were tested to fit production records of these different genetic groups. These models were then tested according to evaluation criteria of quality of fit (AIC, BIC, and RMSE), and the two best models (WD and WL) were chosen for estimation of 305-day milk yield (MY305), peak yield, time to peak, and persistency of milk yield. The breed effect was significant for all traits and components of the lactation curve. The heterosis effect was significant for all traits, and was more significant for MY305 (945.62±79.17 kg). Peak yield was the component of lactation curve that presented the most significant heterosis effect, partially explaining the heterosis effect (12 to 21%) found for MY305. The recombination effect was positive only for lactation period and time to peak of lactation in Girolando cows.
650 $aGirolando
650 $aCruzamento Animal
650 $aCurva de Lactação
650 $aGado Leiteiro
650 $aRaça
653 $aHeterose
653 $aPersistência
653 $aRendimento máximo
700 1 $aPADILHA, A. H.
700 1 $aGAMA, L. T. da
700 1 $aSILVA, M. V. G. B.
700 1 $aCOBUCI, J. A.
773 $tRevista Brasileira de Zootecnia$gv. 50, e20200085, 2021.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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| Registros recuperados : 102 | |
| 7. |  | COBUCI, J. A.; FREITAS, A. F. de; COSTA, C. N.; BRACCINI NETO, J. Correlações genética e ambiental entre características de tipo e produções de gordura e proteína em vaca da raça Holandesa no Brasil. In: REUNIÓN ASOCIACÓN LATINOAMERICANA DE PRODUCCIÓN ANIMAL, 20., REUNIÓN ASOCIACIÓN PERUANA DE PRODUCCIÓN ANIMAL, 30., CONGRESO INTERNACIONAL DE GANADERIA DOBLE PROPOSITO, 5., 2007, Cuzco. Anais... Cuzco: ALPA/APPA, 2007. 1 CD.| Tipo: Artigo em Anais de Congresso / Nota Técnica | Circulação/Nível: -- - -- |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 8. | | COBUCI, J. A.; FREITAS, A. F. de; COSTA, C. N.; BRACCINI NETO, J. Correlações genética e ambiental entre características de tipo e produções de gordura e proteína em vaca da raça Holandesa no Brasil. In: REUNIÓN ASOCIACÓN LATINOAMERICANA DE PRODUCCIÓN ANIMAL, 20.; REUNIÓN ASOCIACIÓN PERUANA DE PRODUCCIÓN ANIMAL, 30.; CONGRESO INTERNACIONAL DE GANADERIA DOBLE PROPOSITO, 5., 2007, Cuzco. Resumenes... Cuzco: ALPA/APPA, 2007.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | KERN, E. L.; COBUCI, J. A.; COSTA, C. N.; ALFONZO, E. P. M.; DALTRO, D. S. Factor analysis to evaluate the relationship between longevity, milk production and linear type traits in Holstein cows. In: ANNUAL MEETING BRAZILIAN SOCIETY OF ANIMAL SCIENCE, 50., 2013, Campinas. Proceedings... Campinas: Sociedade Brasileira de Zootecnia, 2013. | Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 18. | | CAMPOS, R. V.; COBUCI, J. A.; KERN, E. L.; COSTA, C. N.; McMANUS, C. M. Genetic parameters for linear type traits and milk, fat, and protein production in holstein cows in Brazil. Asian-Australasian Journal of Animal Sciences, v. 28, n. 4, p. 476-484, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Gado de Leite. |
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| Registros recuperados : 102 | |
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