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| Registros recuperados : 35 | |
| 4. |  | TORAL, F. L. B.; PEREIRA, J. C. C.; BERGMANN, J. A. G.; JOSAHKIAN, L. A. Parâmetros genéticos do peso desde o nascimento até 730 dias de idade na raça Indubrasil. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 8, p. 595-605, ago. 2014. Título em inglês: Genetic parameters for weight from birth to 730 days of age in Indubrasil breed.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | MORAIS, O. R. de; BERGMANN, J. A. G.; OJEDA, D. B.; FONSECA, C. G. da; BARBOSA, P. F. Efeito de linhagem citoplasmatica em caracteristicas de producao de ovinos da raca Merino. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu, SP. Anais... Botucatu: Sociedade Brasileira de Zootecnia, 1998. v.3 p.306-308.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 7. | | MORAIS, O. R. de; BERGMANN, J. A. G.; OJEDA, D. B.; FONSECA, C. G. da; PEDROSO, A. M. Efeito da herança citoplasmática sobre características de produção em ovinos da raça Merino. Revista Brasileira de Zootecnia, Viçosa, MG, v. 28, n. 5, p. 1007-1015, 1999.| Biblioteca(s): Embrapa Caprinos e Ovinos. |
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| 8. | | RIBEIRO, S. H. A.; PEREIRA, J. C. C.; VERNEQUE, R. da S.; SILVA, M. A.; BERGMANN, J. A. G. Efeito da covariância genética aditivo-materna sobre estimativas de parâmetros genéticos e em avaliações genéticas de características de crescimento de animais Tabapuã. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 61, n. 2, p. 401-406, 2009.| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | BALIERO, E. S.; PEREIRA, J. C. C.; VERNEQUE, R. S.; PEREIRA, C. S.; BERGMANN, J. A. G. Estimativas de parâmetros genéticos e de tendência fenotípica, genética e de ambiente de algumas características reprodutivas na raça Gir. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 51, n. 4, p. 371-376, 1999.| Biblioteca(s): Embrapa Gado de Leite. |
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| 10. | | SILVA, M. V. G. B.; BERGMANN, J. A. G.; MARTINEZ, M. L.; PEREIRA, C. S.; FERRAZ, J. B. S. Utilizacao de modelos animais Uni e Bivariados no estudo da eficiencia reprodutiva e produtiva na raca holandes. Brasilia: SBZ, 1995. p.637-639. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 32., 1995, Brasilia. Anais... Brasilia: SBZ, 1995.| Biblioteca(s): Embrapa Gado de Leite. |
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| 11. | | SILVA, M. V. G. B. da; BERGMANN, J. A. G.; MARTINEZ, M. L.; PEREIRA, C. S.; FERRAZ, J. B. S.; SILVA, H. C. M. da. Associação genética, fenotípica e de ambiente entre medidas de eficiência reprodutiva e produção de leite na raça Holandesa. Revista Brasileira de Zootecnia, Viçosa, v. 27, n. 6, p. 1115-1122, 1998.| Biblioteca(s): Embrapa Gado de Leite. |
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| 12. | | TORRES, R. de A.; BERGMANN, J. A. G.; COSTA, C. N.; PEREIRA, C. S.; VALENTE, J.; PENNA, V. M.; TORRES FILHO, R. de A. Ajustamentos para heterogeneidade de variancia para producao de leite entre rebanhos da raca holandesa no Brasil. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 35., 1998, Botucatu. Anais... Botucatu: SBZ, 1998. p.401-403 v.3 p.401-403| Biblioteca(s): Embrapa Gado de Leite. |
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| 13. | | TORRES, R. de A.; BERGMANN, J. A. G.; COSTA, C. N.; PEREIRA, C. S.; VALENTE, J.; PENNA, V. M.; TORRES FILHO, R. de A. Heterogeneidade de variancia na avaliacao genetica de bovinos da raca holandesa no Brasil. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 1998, Botucatu. Anais... Botucatu: SBZ, 1998. p.398-400 v.3 p.398-400| Biblioteca(s): Embrapa Gado de Leite. |
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| 14. | | ASSIS, J. B. de; LAAT, D. M. de; PEIXOTO, M. G. C. D.; BERGMANN, J. A. G.; FONSECA, C. G.; CARVALHO, M. R. S. Genetic diversity and population structure in Brazilian Mangalarga Marchador horses. Genetics and Molecular Research, v. 8, n. 4, p. 1519-1524, 2009.| Biblioteca(s): Embrapa Gado de Leite. |
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| 16. | | PENNA, V. M.; BERGMANN, J. A. G.; SAMPAIO, I. B. M.; SILVA, A. H. G. da; TEODORO, R. L.; SILVEIRA, L. F. G. Efeitos de heranca e de meio sobre o peso ao nasceer em bezerros de raca nelore Arquivo da Escola de Veterinaria da UFMG, Belo Horizonte, v.33, n.1, p.123-133, 1981.| Biblioteca(s): Embrapa Gado de Leite. |
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| 17. | | RIBEIRO, S. H. A.; PEREIRA, J. C. C.; VERNEQUE, R. da S.; SILVA, M. A.; BERGMANN, J. A. G.; LEDIC, I. L.; MORAIS, O. R. Efeitos da origem e da linhagem do DNA mitocondrial sobre características produtivas e reprodutivas de bovinos leiteiros da raga Gir. Arquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 61, n. 1, p. 232-242, 2009.| Biblioteca(s): Embrapa Gado de Leite. |
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| 18. | | LÔBO, R. B.; BEZERRA, L. A. F.; OLIVEIRA, H. N.; MAGNABOSCO, C. de U.; ZAMBIANCHI, A. R.; ALBUQUERQUE, L. G.; BERGMANN, J. A. G.; SAINZ, R. D. Avaliação genética de animais jovens, touros e matrizes. Ribeirão Preto: USP-FMRP. Departamento de Genética. GEMAC, 2003. 86 p. il.| Biblioteca(s): Embrapa Pantanal. |
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| Registros recuperados : 35 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
14/12/2016 |
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Data da última atualização: |
30/01/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 3 |
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Autoria: |
PEIXOTO, M. G. C. D.; BRUNELI, F. A. T.; BERGMANN, J. A. G.; SANTOS, G. G. dos; CARVALHO, M. R. S.; BRITO, L. F.; PEREIRA, M. C.; PIRES, M. de F. A. |
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Afiliação: |
MARIA GABRIELA CAMPOLINA D PEIXOTO, CNPGL; FRANK ANGELO TOMITA BRUNELI, CNPGL; J. A. G. Bergmann, UFMG; GLAUCYANA GOUVEA DOS SANTOS, CNPGL; M. R. S. Carvalho, UFMG; L F Brito, University of Guelph, Canada; M. C. Pereira, UFSC; MARIA DE FATIMA AVILA PIRES, CNPGL. |
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Título: |
Environmental and genetic effects on the temperament variability of Guzerá (Bos indicus) females. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Livestock Research for Rural Development, v. 28, n. 159, article 9, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The temperament of Guzerá females was evaluated to identify genetic and non-genetic factors influencing the expression of this trait, providing information to support decision-making in breeding programs. Temperament assessed by reactivity was evaluated in a livestock scale using visual scoring (TS) and an electronic device (TR). Measurements were repeated during the rainy and dry seasons in 1354 females from five herds comprising 2663 records. Estimates of (co)variance components and genetic parameters were obtained using the derivative-free restricted maximum likelihood method. The reactivity of Guzerá females widely varied. There is indication that the bulls used in these herds have been chosen based also on their daughters? temperament. The effects of herd, season, physiological state, weight class, entry order class, and age at time of measurement were significant (p< 0.001) sources of variation in TR. Herd was the most important factor associated with the reactivity and particularly handling practices are likely to explain the differences. The heritabilities of TS and TR were estimated as, 0.29 ± 0.08 and 0.06 ± 0.02, respectively. The genetic correlations were 0.89 between TS and TR and -0.46 between TR and test-day milk production. This study suggested that variation in TR is mainly influenced by non-genetic effects. Genetic parameter estimates still do not allow for an accurate establishment of the potential of TR for selection. Further studies using larger datasets should be performed to provide additional evaluation of female temperament. MenosThe temperament of Guzerá females was evaluated to identify genetic and non-genetic factors influencing the expression of this trait, providing information to support decision-making in breeding programs. Temperament assessed by reactivity was evaluated in a livestock scale using visual scoring (TS) and an electronic device (TR). Measurements were repeated during the rainy and dry seasons in 1354 females from five herds comprising 2663 records. Estimates of (co)variance components and genetic parameters were obtained using the derivative-free restricted maximum likelihood method. The reactivity of Guzerá females widely varied. There is indication that the bulls used in these herds have been chosen based also on their daughters? temperament. The effects of herd, season, physiological state, weight class, entry order class, and age at time of measurement were significant (p< 0.001) sources of variation in TR. Herd was the most important factor associated with the reactivity and particularly handling practices are likely to explain the differences. The heritabilities of TS and TR were estimated as, 0.29 ± 0.08 and 0.06 ± 0.02, respectively. The genetic correlations were 0.89 between TS and TR and -0.46 between TR and test-day milk production. This study suggested that variation in TR is mainly influenced by non-genetic effects. Genetic parameter estimates still do not allow for an accurate establishment of the potential of TR for selection. Further studies using larger datasets... Mostrar Tudo |
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Palavras-Chave: |
Animal behaviour; Reactivity. |
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Thesaurus NAL: |
animal handling; dairy cattle; zebu. |
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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/151992/1/Cnpgl-2016-LivResRurDev-Environmental.pdf
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|
Marc: |
LEADER 02381naa a2200265 a 4500
001 2058682
005 2023-01-30
008 2016 bl uuuu u00u1 u #d
100 1 $aPEIXOTO, M. G. C. D.
245 $aEnvironmental and genetic effects on the temperament variability of Guzerá (Bos indicus) females.$h[electronic resource]
260 $c2016
520 $aThe temperament of Guzerá females was evaluated to identify genetic and non-genetic factors influencing the expression of this trait, providing information to support decision-making in breeding programs. Temperament assessed by reactivity was evaluated in a livestock scale using visual scoring (TS) and an electronic device (TR). Measurements were repeated during the rainy and dry seasons in 1354 females from five herds comprising 2663 records. Estimates of (co)variance components and genetic parameters were obtained using the derivative-free restricted maximum likelihood method. The reactivity of Guzerá females widely varied. There is indication that the bulls used in these herds have been chosen based also on their daughters? temperament. The effects of herd, season, physiological state, weight class, entry order class, and age at time of measurement were significant (p< 0.001) sources of variation in TR. Herd was the most important factor associated with the reactivity and particularly handling practices are likely to explain the differences. The heritabilities of TS and TR were estimated as, 0.29 ± 0.08 and 0.06 ± 0.02, respectively. The genetic correlations were 0.89 between TS and TR and -0.46 between TR and test-day milk production. This study suggested that variation in TR is mainly influenced by non-genetic effects. Genetic parameter estimates still do not allow for an accurate establishment of the potential of TR for selection. Further studies using larger datasets should be performed to provide additional evaluation of female temperament.
650 $aanimal handling
650 $adairy cattle
650 $azebu
653 $aAnimal behaviour
653 $aReactivity
700 1 $aBRUNELI, F. A. T.
700 1 $aBERGMANN, J. A. G.
700 1 $aSANTOS, G. G. dos
700 1 $aCARVALHO, M. R. S.
700 1 $aBRITO, L. F.
700 1 $aPEREIRA, M. C.
700 1 $aPIRES, M. de F. A.
773 $tLivestock Research for Rural Development$gv. 28, n. 159, article 9, 2016.
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Embrapa Gado de Leite (CNPGL) |
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