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Registro Completo |
Biblioteca(s): |
Embrapa Cerrados. |
Data corrente: |
28/01/2008 |
Data da última atualização: |
21/07/2009 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
OLIVEIRA, L. S.; DUBOC, E.; VELOSO, R. F. |
Afiliação: |
L. S. Oliveira; Eny Duboc, CPAC; Rui Fonseca Veloso, CPAC. |
Título: |
Carvão vegetal no Brasil e no cerrado. |
Ano de publicação: |
2007 |
Fonte/Imprenta: |
In: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 3., 2007, Planaltina, DF. Resumos apresentados. Planaltina, DF: Embrapa Cerrados, 2007. p. 24. |
Série: |
(Embrapa Cerrados. Documentos, 176). |
Idioma: |
Português |
Thesagro: |
Carvão; Produção. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2010/28147/1/doc-176.pdf
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Marc: |
LEADER 00540nam a2200157 a 4500 001 1563111 005 2009-07-21 008 2007 bl uuuu u00u1 u #d 100 1 $aOLIVEIRA, L. S. 245 $aCarvão vegetal no Brasil e no cerrado. 260 $aIn: ENCONTRO DE JOVENS TALENTOS DA EMBRAPA CERRADOS, 3., 2007, Planaltina, DF. Resumos apresentados. Planaltina, DF: Embrapa Cerrados, 2007. p. 24.$c2007 490 $a(Embrapa Cerrados. Documentos, 176). 650 $aCarvão 650 $aProdução 700 1 $aDUBOC, E. 700 1 $aVELOSO, R. F.
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| Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Agricultura Digital. |
Data corrente: |
21/05/2014 |
Data da última atualização: |
08/01/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
THOMPSON, V. A.; BARIONI, L. G.; RUMSEY, T. R.; FADEL, J. G.; SAINZ, R. D. |
Afiliação: |
University of California; LUIS GUSTAVO BARIONI, CNPTIA; University of California; University of California; University of California. |
Título: |
The development of a dynamic, mechanistic, thermal balance model for Bos indicus and Bos taurus. |
Ano de publicação: |
2014 |
Fonte/Imprenta: |
Journal of Agricultural Science, Cambridge, v. 152, n. 3, p. 464-482, June 2014. |
DOI: |
10.1017/S002185961300049X |
Idioma: |
Inglês |
Conteúdo: |
The dynamic model presented in the current paper estimates heat production and heat flow between growing and mature cattle (Bos indicus and Bos taurus) and the surrounding environment. Heat production was calculated using the NRC (2000) and heat flows between the animal and the environment were based largely on existing models and physical principles. Heat flows among the body core, the skin, the coat and the environment were calculated. Heat flows from and to the environment included solar radiation, long wave radiation, convection and evaporative heat loss. Physiological responses of cattle (sweating, panting and vasodilation) were modelled through mechanistic equations. The model required weather (radiation, temperature, wind and vapour pressure), animal (body-core weight and genotype-specific parameters) and dietary inputs (dry matter intake rates and diet composition) and estimated heat balance and the physiological responses of the animal to within-day weather variation. The current paper has focused on heat stress, although the model was designed to run under both hot and cold climatic conditions. The model developed in the current paper provides researchers and livestock producers with the ability to predict heat stress and to evaluate mitigating procedures. |
Palavras-Chave: |
Modelagem; Modelo. |
Thesagro: |
Gado de Corte. |
Thesaurus NAL: |
Cattle; Models; Zebu. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02023naa a2200253 a 4500 001 1986726 005 2020-01-08 008 2014 bl uuuu u00u1 u #d 024 7 $a10.1017/S002185961300049X$2DOI 100 1 $aTHOMPSON, V. A. 245 $aThe development of a dynamic, mechanistic, thermal balance model for Bos indicus and Bos taurus.$h[electronic resource] 260 $c2014 520 $aThe dynamic model presented in the current paper estimates heat production and heat flow between growing and mature cattle (Bos indicus and Bos taurus) and the surrounding environment. Heat production was calculated using the NRC (2000) and heat flows between the animal and the environment were based largely on existing models and physical principles. Heat flows among the body core, the skin, the coat and the environment were calculated. Heat flows from and to the environment included solar radiation, long wave radiation, convection and evaporative heat loss. Physiological responses of cattle (sweating, panting and vasodilation) were modelled through mechanistic equations. The model required weather (radiation, temperature, wind and vapour pressure), animal (body-core weight and genotype-specific parameters) and dietary inputs (dry matter intake rates and diet composition) and estimated heat balance and the physiological responses of the animal to within-day weather variation. The current paper has focused on heat stress, although the model was designed to run under both hot and cold climatic conditions. The model developed in the current paper provides researchers and livestock producers with the ability to predict heat stress and to evaluate mitigating procedures. 650 $aCattle 650 $aModels 650 $aZebu 650 $aGado de Corte 653 $aModelagem 653 $aModelo 700 1 $aBARIONI, L. G. 700 1 $aRUMSEY, T. R. 700 1 $aFADEL, J. G. 700 1 $aSAINZ, R. D. 773 $tJournal of Agricultural Science, Cambridge$gv. 152, n. 3, p. 464-482, June 2014.
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