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| 15. |  | SAINZ, R. D.; BARIONI, L. G.; PAULINO, P. V.; VALADARES FILHO, S. C.; OLTJEN, J. W. Growth patterns of Nellore vc British beef cattle breeds assessed using a dynamic, mechanistic model of cattle growth and composition. In: KEBREAB, E.; DIJKSTRA, J.; BANNINK, A.; GERRITS, W. J. J.; FRANCE, J. (Ed.). Nutrient digestion and utilization in farm animals: modelling approaches. Oxfordshire: CABI, 2006. p. 160-170.| Biblioteca(s): Embrapa Cerrados. |
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| 16. | | MAGNABOSCO, C. U.; ARAUJO, F. R. C.; MANICARDI, F.; SAINZ, R. D.; LOS REYES, A. de. Padroes de crescimento e caracteristicas de carcaca de tourinhos Nelore mocho, avaliados por ultra-sonografia em tempo real. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 40., 2003, Santa Maria, RS. Otimizando a producao animal: anais. Santa Maria: SBZ: UFSM, 2003. 1 CD-ROM.| Biblioteca(s): Embrapa Cerrados. |
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| 17. | | MAGNABOSCO, C. de U.; LOPES, F. B.; MIYAGI, E. S.; LÔBO, R. B.; SAINZ, R. D. Multivariate approach of inter-relationships among growth, consumption and carcass traits in nellore cattle. Revista Ciência Agronômica, v. 45, n. 1, p. 168-176, 2014. p. 168-176| Biblioteca(s): Embrapa Cerrados. |
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| 18. | | THOMPSON, V. A.; BARIONI, L. G.; RUMSEY, T. R.; FADEL, J. G.; SAINZ, R. D. The development of a dynamic, mechanistic, thermal balance model for Bos indicus and Bos taurus. Journal of Agricultural Science, Cambridge, v. 152, n. 3, p. 464-482, June 2014.| Biblioteca(s): Embrapa Agricultura Digital. |
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| 19. | | OLTJEN, J. W.; SAINZ, R. D.; BARIONI, L. G.; MEDEIROS, S. R. de. Rate of protein growth and energy for mainternance parameter changes in the Davis Growth Model. In: EAAP INTERNATIONAL SYMPOSIUM ON ENERGY AND PROTEIN METABOLISM AND NUTRITION, 5., 2016, Krakow, Poland. Proceedings... Wageningen, Reino dos Países Baixos: Wageningen Academic Pulbishers, 2016. p. 69-70 (EAAP publication, 137). Edited by: Jacek Skomial, Hélène Lapierre| Biblioteca(s): Embrapa Gado de Corte. |
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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 |
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Data da última atualização: |
08/01/2020 |
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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 |
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Fonte/Imprenta: |
Journal of Agricultural Science, Cambridge, v. 152, n. 3, p. 464-482, June 2014. |
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DOI: |
10.1017/S002185961300049X |
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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. |
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Palavras-Chave: |
Modelagem; Modelo. |
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Thesagro: |
Gado de Corte. |
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Thesaurus NAL: |
Cattle; Models; Zebu. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
Marc: |
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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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