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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sul. Para informações adicionais entre em contato com cppsul.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas; Embrapa Pecuária Sul. |
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Data corrente: |
27/11/2018 |
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Data da última atualização: |
27/11/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JUNQUEIRA, V. S.; LOPES, P. S.; RESENDE, M. D. V. de; SILVA, F. F. e; LOURENÇO, D. A. L.; YOKOO, M. J. I.; CARDOSO, F. F. |
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Afiliação: |
Vinícius Silva Junqueira, UFV; Paulo Sávio Lopes, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; Fabyano Fonseca e Silva, UFV; Daniela Andressa Lino Lourenço, University of Georgia; Marcos Jun Iti Yokoo, UFPEL; FERNANDO FLORES CARDOSO, CPPSUL. |
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Título: |
Impact of embryo transfer phenotypic records on large-scale beef cattle genetic evaluations. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Revista Brasileira de Zootecnia, Viçosa, MG, v. 47, e20170033, 2018. |
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Páginas: |
4 p. |
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DOI: |
10.1590/rbz4720170033 |
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Idioma: |
Inglês |
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Conteúdo: |
We aimed to evaluate the impact of using embryo transfer (ET) information on weaning weight estimated breeding values (EBV) and its accuracy. Data from Hereford and Braford cattle, raised under extensive conditions in Southern Brazil, were used. A model that included ET information in addition to maternal (genetic and permanent environmental) effects as a function of foster dams was compared to a model without ET information. Accuracy of both bulls and calves increased due to inclusion of ET records in 0.04 and 0.12 points, respectively. In general, the inclusion of ET records provided a greater amount of phenotypic variance and most accurate EBV for sires and progeny. The results obtained in this study encourage the use of ET phenotypic records in large-scale genetic evaluation programs, especially for bulls that have most of their progeny coming from ET. Most of the Brazilian genetic evaluation programs do not use phenotypic records of ET animals. Therefore, breeding values are predicted based only on parentage average, which implies in underestimated accuracies. Considering that ET has been widely used in Brazil and that such information improves genetic predictions, we suggest modifying the traditional adopted models by considering ET information in the Brazilian genetic evaluations. |
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Palavras-Chave: |
Assisted reproduction; Foster dam; Genetic groups. |
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Thesagro: |
Bovino; Gado de Corte. |
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Thesaurus Nal: |
Accuracy; Beef cattle. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02181naa a2200301 a 4500
001 2100193
005 2018-11-27
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1590/rbz4720170033$2DOI
100 1 $aJUNQUEIRA, V. S.
245 $aImpact of embryo transfer phenotypic records on large-scale beef cattle genetic evaluations.$h[electronic resource]
260 $c2018
300 $a4 p.
520 $aWe aimed to evaluate the impact of using embryo transfer (ET) information on weaning weight estimated breeding values (EBV) and its accuracy. Data from Hereford and Braford cattle, raised under extensive conditions in Southern Brazil, were used. A model that included ET information in addition to maternal (genetic and permanent environmental) effects as a function of foster dams was compared to a model without ET information. Accuracy of both bulls and calves increased due to inclusion of ET records in 0.04 and 0.12 points, respectively. In general, the inclusion of ET records provided a greater amount of phenotypic variance and most accurate EBV for sires and progeny. The results obtained in this study encourage the use of ET phenotypic records in large-scale genetic evaluation programs, especially for bulls that have most of their progeny coming from ET. Most of the Brazilian genetic evaluation programs do not use phenotypic records of ET animals. Therefore, breeding values are predicted based only on parentage average, which implies in underestimated accuracies. Considering that ET has been widely used in Brazil and that such information improves genetic predictions, we suggest modifying the traditional adopted models by considering ET information in the Brazilian genetic evaluations.
650 $aAccuracy
650 $aBeef cattle
650 $aBovino
650 $aGado de Corte
653 $aAssisted reproduction
653 $aFoster dam
653 $aGenetic groups
700 1 $aLOPES, P. S.
700 1 $aRESENDE, M. D. V. de
700 1 $aSILVA, F. F. e
700 1 $aLOURENÇO, D. A. L.
700 1 $aYOKOO, M. J. I.
700 1 $aCARDOSO, F. F.
773 $tRevista Brasileira de Zootecnia, Viçosa, MG$gv. 47, e20170033, 2018.
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Registro original: |
Embrapa Florestas (CNPF) |
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Biblioteca |
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Origem |
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Classificação |
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Registro |
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URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
03/04/2017 |
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Data da última atualização: |
16/05/2017 |
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Autoria: |
PARIZ, C. M.; COSTA, C.; CRUSCIO, C. A. C.; MEIRELLES, P. R. de L.; CASTILHOS, A. M. de; ANDREOTTI, M.; COSTA, N. R.; MARTELLO, J. M. |
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Afiliação: |
CRISTIANO MAGALHÃES PARIZ, USP/UNESP; CINIRO COSTA, USP/UNESP; CARLOS ALEXANDRE COSTA CRUSCIOL, UNESP; PAULO ROBERTO DE LIMA MEIRELLES, USP/UNESP; ANDRÉ MICHEL DE CASTILHOS, USP/UNESP; MARCELO ANDREOTTI, UNESP; NÍDIA RAQUEL COSTA, UNESP; JORGE MARTINELLI MARTELLO, UNESP. |
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Título: |
Silage production of corn intercropped with tropical forages in an integrated crop-livestock system with lambs. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 52, n. 1, p. 54-62, jan. 2017. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Produção de silagem de milho consorciado com forrageiras tropicais em sistema de integração lavoura-pecuária com cordeiros. |
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Conteúdo: |
The objective of this work was to evaluate the effect of intercropping systems between corn and tropical forages, at different cutting heights, on silage production, light interception, land use efficiency, intercropping competition factors, and pasture production. In the 2010/2011 and 2011/2012 crop seasons, two cultivation modalities were evaluated in the summer/autumn ? monocropped corn with residual regrowth of signal grass (Urochloa decumbens) from the soil seed bank and corn intercropped with palisade grass (U. brizantha 'Marandu') ?, in a factorial arrangement with two cutting heights for silage production ? 0.20 and 0.45 m. After corn silage harvest, the forages were grazed by lambs in a semi-feedlot system, in the winter/spring. Monocropped corn and 0.45-m cutting height both reduced dry matter yield for silage. Corn intercropped with palisade grass improved land use efficiency from 13 to 31% compared with monocropped crop, with land equivalent ratio greater than 1. Palisade grass showed higher light interception than signal grass over the intercrop period with corn and provided greater forage yield for lambs to graze during winter/spring. Corn intercropped with palisade grass, compared with monocropped corn, especially at the cutting height of 0.45 m, is a viable option for improving silage and pasture production, as well as land use efficiency in the integrated crop-livestock system. |
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Palavras-Chave: |
Altura de corte; Cutting height; Equivalência de uso da terra; Interceptação luminosa; Land equivalent ratio; Light interception. |
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Thesagro: |
Zea Mays. |
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Thesaurus NAL: |
Urochloa. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/158521/1/Silage-production-of-corn-intercropped.pdf
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Marc: |
LEADER 02501naa a2200313 a 4500
001 2068023
005 2017-05-16
008 2017 bl uuuu u00u1 u #d
100 1 $aPARIZ, C. M.
245 $aSilage production of corn intercropped with tropical forages in an integrated crop-livestock system with lambs.
260 $c2017
500 $aTítulo em português: Produção de silagem de milho consorciado com forrageiras tropicais em sistema de integração lavoura-pecuária com cordeiros.
520 $aThe objective of this work was to evaluate the effect of intercropping systems between corn and tropical forages, at different cutting heights, on silage production, light interception, land use efficiency, intercropping competition factors, and pasture production. In the 2010/2011 and 2011/2012 crop seasons, two cultivation modalities were evaluated in the summer/autumn ? monocropped corn with residual regrowth of signal grass (Urochloa decumbens) from the soil seed bank and corn intercropped with palisade grass (U. brizantha 'Marandu') ?, in a factorial arrangement with two cutting heights for silage production ? 0.20 and 0.45 m. After corn silage harvest, the forages were grazed by lambs in a semi-feedlot system, in the winter/spring. Monocropped corn and 0.45-m cutting height both reduced dry matter yield for silage. Corn intercropped with palisade grass improved land use efficiency from 13 to 31% compared with monocropped crop, with land equivalent ratio greater than 1. Palisade grass showed higher light interception than signal grass over the intercrop period with corn and provided greater forage yield for lambs to graze during winter/spring. Corn intercropped with palisade grass, compared with monocropped corn, especially at the cutting height of 0.45 m, is a viable option for improving silage and pasture production, as well as land use efficiency in the integrated crop-livestock system.
650 $aUrochloa
650 $aZea Mays
653 $aAltura de corte
653 $aCutting height
653 $aEquivalência de uso da terra
653 $aInterceptação luminosa
653 $aLand equivalent ratio
653 $aLight interception
700 1 $aCOSTA, C.
700 1 $aCRUSCIO, C. A. C.
700 1 $aMEIRELLES, P. R. de L.
700 1 $aCASTILHOS, A. M. de
700 1 $aANDREOTTI, M.
700 1 $aCOSTA, N. R.
700 1 $aMARTELLO, J. M.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 52, n. 1, p. 54-62, jan. 2017.
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Embrapa Unidades Centrais (AI-SEDE) |
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