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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Gado de Corte. |
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Data corrente: |
13/10/2017 |
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Data da última atualização: |
18/12/2017 |
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Tipo da produção científica: |
Nota Técnica/Nota Científica |
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Autoria: |
OLIVEIRA, L. T. de; BONAFÉ, C. M.; SIVA, F. F. e; VENTURA, H. T.; OLIVEIRA, H. R. de; MENEZES, G. R. de O.; RESENDE, M. D. V. de; VIANA, J. M. S. |
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Afiliação: |
Lorena Tavares de Oliveira, Department of Animal Science/Universidade Federal dos Vales do Jequitinhonha e Mucuri; Cristina Moreira Bonafé, Department of Animal Science/Universidade Federal dos Vales do Jequitinhonha e Mucuri; Fabyano Fonseca e Silva, Department of Animal Science/Universidade Federal de Viçosa; Henrique Torres Ventura, ABCZ, Associação Brasileira dos Criadores de Zebu; Hinayah Rojas de Oliveira, Department of Animal Science/Universidade Federal de Viçosa; GILBERTO ROMEIRO DE OLIVEIRA MENEZES, CNPGC; MARCOS DEON VILELA DE RESENDE, CNPF; José Marcelo Soriano Viana, Department of General Biology/Universidade Federal de Viçosa. |
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Título: |
Bayesian random regression threshold models for genetic evaluation of pregnancy probability in Red Sindhi heifers. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Livestock Science, v. 202, p. 166-170, August, 2017. |
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DOI: |
10.1016/j.livsci.2017.06.005 |
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Idioma: |
Inglês |
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Notas: |
Short communication |
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Conteúdo: |
We proposed a Bayesian random regression threshold model for genetic evaluation of pregnancy probability (PP) in Red Sindhi heifers over different months. Since this breed was recently introduced in Brazil, the age of 14 months usually preconized for Nellore cattle may not reflect the reality of the fertility indicator. In this context, the pregnancy success was evaluated at other ages aiming to understand its genetic variability pattern over time. A total of 4828 phenotyped heifers belong to 657 contemporary groups were used for the analysis. The estimated connectedness was equal to 99.75% considering 6189 individuals in the final pedigree. The random regression threshold models were implemented by combining second, third and fourth order Legendre polynomials to describe the average, the additive genetic and the permanent environmental curves. Additionally, the heterogeneity of the residual variance was also tested here. Based on DIC (deviance information criterion) and posterior model probabilities, the fourth order Legendre polynomials (LEG_4441) for the average, the additive genetic and the permanent environmental effects, assuming homogeneity of the residual variance, outperformed the simplest models. Thus, the fitting quality compensated the increased in the model complexity. The negative genetic correlations between PP at 15 months with PP at latter months indicates that rankings of animals for selection would be few similar in advanced ages. The high values for heritability (varying from 0.32 to 0.45) suggest that PP, mainly until 19 months, can be used as selection criterion for reproductive female performance in breeding programs for Red Sindhi cattle in Brazil. These practical results were only obtained due to the
advantages of the proposed random regression threshold models to describe PP over different months. MenosWe proposed a Bayesian random regression threshold model for genetic evaluation of pregnancy probability (PP) in Red Sindhi heifers over different months. Since this breed was recently introduced in Brazil, the age of 14 months usually preconized for Nellore cattle may not reflect the reality of the fertility indicator. In this context, the pregnancy success was evaluated at other ages aiming to understand its genetic variability pattern over time. A total of 4828 phenotyped heifers belong to 657 contemporary groups were used for the analysis. The estimated connectedness was equal to 99.75% considering 6189 individuals in the final pedigree. The random regression threshold models were implemented by combining second, third and fourth order Legendre polynomials to describe the average, the additive genetic and the permanent environmental curves. Additionally, the heterogeneity of the residual variance was also tested here. Based on DIC (deviance information criterion) and posterior model probabilities, the fourth order Legendre polynomials (LEG_4441) for the average, the additive genetic and the permanent environmental effects, assuming homogeneity of the residual variance, outperformed the simplest models. Thus, the fitting quality compensated the increased in the model complexity. The negative genetic correlations between PP at 15 months with PP at latter months indicates that rankings of animals for selection would be few similar in advanced ages. The high values for herit... Mostrar Tudo |
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Palavras-Chave: |
Heifer pregnancy; Legendre polynomials. |
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Thesagro: |
Bos indicus; Gado nelore; Novilho; Prenhez. |
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Thesaurus Nal: |
Genetic heterogeneity; Pedigree; Zebu. |
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Categoria do assunto: |
--
G Melhoramento Genético |
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Marc: |
LEADER 02849naa a2200337 a 4500
001 2082802
005 2017-12-18
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1016/j.livsci.2017.06.005$2DOI
100 1 $aOLIVEIRA, L. T. de
245 $aBayesian random regression threshold models for genetic evaluation of pregnancy probability in Red Sindhi heifers.$h[electronic resource]
260 $c2017
500 $aShort communication
520 $aWe proposed a Bayesian random regression threshold model for genetic evaluation of pregnancy probability (PP) in Red Sindhi heifers over different months. Since this breed was recently introduced in Brazil, the age of 14 months usually preconized for Nellore cattle may not reflect the reality of the fertility indicator. In this context, the pregnancy success was evaluated at other ages aiming to understand its genetic variability pattern over time. A total of 4828 phenotyped heifers belong to 657 contemporary groups were used for the analysis. The estimated connectedness was equal to 99.75% considering 6189 individuals in the final pedigree. The random regression threshold models were implemented by combining second, third and fourth order Legendre polynomials to describe the average, the additive genetic and the permanent environmental curves. Additionally, the heterogeneity of the residual variance was also tested here. Based on DIC (deviance information criterion) and posterior model probabilities, the fourth order Legendre polynomials (LEG_4441) for the average, the additive genetic and the permanent environmental effects, assuming homogeneity of the residual variance, outperformed the simplest models. Thus, the fitting quality compensated the increased in the model complexity. The negative genetic correlations between PP at 15 months with PP at latter months indicates that rankings of animals for selection would be few similar in advanced ages. The high values for heritability (varying from 0.32 to 0.45) suggest that PP, mainly until 19 months, can be used as selection criterion for reproductive female performance in breeding programs for Red Sindhi cattle in Brazil. These practical results were only obtained due to the advantages of the proposed random regression threshold models to describe PP over different months.
650 $aGenetic heterogeneity
650 $aPedigree
650 $aZebu
650 $aBos indicus
650 $aGado nelore
650 $aNovilho
650 $aPrenhez
653 $aHeifer pregnancy
653 $aLegendre polynomials
700 1 $aBONAFÉ, C. M.
700 1 $aSIVA, F. F. e
700 1 $aVENTURA, H. T.
700 1 $aOLIVEIRA, H. R. de
700 1 $aMENEZES, G. R. de O.
700 1 $aRESENDE, M. D. V. de
700 1 $aVIANA, J. M. S.
773 $tLivestock Science$gv. 202, p. 166-170, August, 2017.
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Embrapa Florestas (CNPF) |
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| 1. |  | HIGUERA, J. M.; SILVA, A. B. S. da; HENRIQUE, W.; ESTEVES, S. N.; BARIONI JUNIOR, W.; NOGUEIRA, A. R. de A. Cruzamento genético e manejo nutricional em ovinos: efeito na composição mineral de diversos componentes corporais. In: ENCONTRO NACIONAL DE QUÍMICA ANALÍTICA, 19., 2018, Caldas Novas, GO; CONGRESSO IBEROAMERICANO DE QUÍMICA ANALÍTICA, 7., Caldas Novas, GO. Anais... Caldas Novas,GO: ENQA; CIAQA, 2018. p.1148.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 2. | | HIGUERAL, J. M. de; SILVA, A. B. S. da; NOGUEIRA, A. R. de A. Uso do planejamento Doehlert no desenvolvimento de método para a otimização da decomposição de carcaça de ovinos. In: JORNADA CIENTÍFICA DA EMBRAPA SÃO CARLOS, 10., 2018, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação; Embrapa Pecuária Sudeste, 2018. p.56. (Embrapa Instrumentação. Documentos, 68). Editores técnicos: Daniel Souza Corrêa, Elaine Cristina Paris, Maria Alice Martins, Paulino Ribeiro Villas Boas, Wilson Tadeu Lopes da Silva.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 3. | | MACHADO, R. C.; SILVA, A. B. S. da; ANDRADE, D. F. de; PINHEIRO, F. C.; WILLIAMS, C. B.; DONATI, G. L.; NOGUEIRA, A. R. de A.; PEREIRA FILHO, E. R. Alternative approaches applied to inductively coupled plasma techniques: multi-flow and two-flow calibration. Journal of the Brazilian Chemical Society, v.32, n.4, 2021. p.842-851.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 4. | | MARCANO DE HIGUERA, J.; SILVA, A. B. S. da; HENRIQUE, W.; ESTEVES, S. N.; BARIONI JUNIOR, W.; DONATI, G. L.; NOGUEIRA, A. R. de A. Effect of genetic crossing and nutritional management on the mineral composition of carcass, blood, leather, and viscera of sheep. Biological Trace Element Research, jan. 2021. p.4133-4144.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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| 8. | | SILVA, A. B. S. da; NOGUEIRA, A. R. de A. Estratégias para a quantificação de carbono residual em amostras de alimentos por MIP OES. In: JORNADA CIENTÍFICA DA EMBRAPA SÃO CARLOS, 10., 2018, São Carlos, SP. Anais... São Carlos, SP: Embrapa Instrumentação; Embrapa Pecuária Sudeste, 2018. p.66. (Embrapa Instrumentação. Documentos, 68). Editores técnicos: Daniel Souza Corrêa, Elaine Cristina Paris, Maria Alice Martins, Paulino Ribeiro Villas Boas, Wilson Tadeu Lopes da Silva.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| 9. | | SILVA, A. B. S. da; PEREIRA FILHO, E. R.; NOGUEIRA, A. R. de A. Direct determination of TiO2 as Ti used as digestibility marker in bovine faeces by Laser-Induced Breakdown Spectroscopy (LIBS). In: COLLOQUIUM SPECTROSCOPICUM INTERNATIONALE, 40., EURO-MEDITERRANEAN SYMPOSIUM ON LIBS, 9., 2017, Pisa, Italy. Proceedings... Pisa, Italy: IUPAC, 2017. p. 52.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Pecuária Sudeste. |
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| Registros recuperados : 9 | |
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