Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/00071668.2015.1115467 http://hdl.handle.net/11449/161306 |
Resumo: | Two experiments were conducted to test the hypothesis that when using similar protein/amino acid diets and environment temperature conditions, the performance and carbon turnover in muscle and liver tissues, as measured by the incorporation of stable isotopes (C-13/C-12), must be different between fast-growing Cobb 500 (R) and slow-growing Label Rouge broilers.For both experiments (Cobb and Label Rouge), 21-d-old birds were distributed in a completely randomised, 3x3 factorial design; three environmental temperatures (cyclic heat stress ad libitum, 22 degrees C ad libitum, and 22 degrees C restricted) and three crude protein concentrations (189.1, 210 and 220g/kg CP) were used.The Cobb 500 (R) had better performance with higher concentrations of crude protein. Cyclic heat stress (a temperature factor), negatively affected this genetic strain's performance. For the Label Rouge birds, the crude protein concentrations in the diet presented inconsistent results and cyclic heat stress did not affect the performance.The carbon turnover rate was affected in the Cobb 500 (R) strain, with a high protein content reducing carbon turnover in the evaluated tissues (liver and muscles). Feed intake had a greater impact on carbon turnover rates than cyclic heat stress. The Label Rouge birds were not affected by the evaluated factors, suggesting that genetic improvement has a leading role on tissue carbon turnover.There is a genetic influence on carbon turnover in the liver and muscle tissues of broiler chickens. In addition, genetically fast-growing broilers are more susceptible to variations in diet composition and environmental temperature than less rapidly growing animals. |
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Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein dietsTwo experiments were conducted to test the hypothesis that when using similar protein/amino acid diets and environment temperature conditions, the performance and carbon turnover in muscle and liver tissues, as measured by the incorporation of stable isotopes (C-13/C-12), must be different between fast-growing Cobb 500 (R) and slow-growing Label Rouge broilers.For both experiments (Cobb and Label Rouge), 21-d-old birds were distributed in a completely randomised, 3x3 factorial design; three environmental temperatures (cyclic heat stress ad libitum, 22 degrees C ad libitum, and 22 degrees C restricted) and three crude protein concentrations (189.1, 210 and 220g/kg CP) were used.The Cobb 500 (R) had better performance with higher concentrations of crude protein. Cyclic heat stress (a temperature factor), negatively affected this genetic strain's performance. For the Label Rouge birds, the crude protein concentrations in the diet presented inconsistent results and cyclic heat stress did not affect the performance.The carbon turnover rate was affected in the Cobb 500 (R) strain, with a high protein content reducing carbon turnover in the evaluated tissues (liver and muscles). Feed intake had a greater impact on carbon turnover rates than cyclic heat stress. The Label Rouge birds were not affected by the evaluated factors, suggesting that genetic improvement has a leading role on tissue carbon turnover.There is a genetic influence on carbon turnover in the liver and muscle tissues of broiler chickens. In addition, genetically fast-growing broilers are more susceptible to variations in diet composition and environmental temperature than less rapidly growing animals.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Univ Estadual Sao Paulo, Dept Morfol & Fisiol Anim, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, BrazilUniv Estadual Paulista, Inst Biociencias, Dept Fis & Biofis, Botucatu, SP, BrazilUniv Estadual Paulista, Inst Biociencias, Dept Fis & Biofis, Botucatu, SP, BrazilFAPESP: 2011/05938-1Taylor & Francis LtdUniversidade Estadual Paulista (Unesp)Campos, D. M. B.Macari, M.Fernadez-Alarcon, M. F.Nogueira, W. C. L.Souza, F. A. deHada, F. H.Lunedo, R.Denadai, J. C. [UNESP]2018-11-26T16:27:58Z2018-11-26T16:27:58Z2016-01-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article84-92application/pdfhttp://dx.doi.org/10.1080/00071668.2015.1115467British Poultry Science. Abingdon: Taylor & Francis Ltd, v. 57, n. 1, p. 84-92, 2016.0007-1668http://hdl.handle.net/11449/16130610.1080/00071668.2015.1115467WOS:000371907400009WOS000371907400009.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBritish Poultry Science0,477info:eu-repo/semantics/openAccess2023-12-30T06:20:38Zoai:repositorio.unesp.br:11449/161306Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T21:42:26.199700Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets |
title |
Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets |
spellingShingle |
Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets Campos, D. M. B. |
title_short |
Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets |
title_full |
Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets |
title_fullStr |
Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets |
title_full_unstemmed |
Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets |
title_sort |
Performance and carbon turnover in fast- and slow-growing broilers submitted to cyclic heat stress and fed on high-protein diets |
author |
Campos, D. M. B. |
author_facet |
Campos, D. M. B. Macari, M. Fernadez-Alarcon, M. F. Nogueira, W. C. L. Souza, F. A. de Hada, F. H. Lunedo, R. Denadai, J. C. [UNESP] |
author_role |
author |
author2 |
Macari, M. Fernadez-Alarcon, M. F. Nogueira, W. C. L. Souza, F. A. de Hada, F. H. Lunedo, R. Denadai, J. C. [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Campos, D. M. B. Macari, M. Fernadez-Alarcon, M. F. Nogueira, W. C. L. Souza, F. A. de Hada, F. H. Lunedo, R. Denadai, J. C. [UNESP] |
description |
Two experiments were conducted to test the hypothesis that when using similar protein/amino acid diets and environment temperature conditions, the performance and carbon turnover in muscle and liver tissues, as measured by the incorporation of stable isotopes (C-13/C-12), must be different between fast-growing Cobb 500 (R) and slow-growing Label Rouge broilers.For both experiments (Cobb and Label Rouge), 21-d-old birds were distributed in a completely randomised, 3x3 factorial design; three environmental temperatures (cyclic heat stress ad libitum, 22 degrees C ad libitum, and 22 degrees C restricted) and three crude protein concentrations (189.1, 210 and 220g/kg CP) were used.The Cobb 500 (R) had better performance with higher concentrations of crude protein. Cyclic heat stress (a temperature factor), negatively affected this genetic strain's performance. For the Label Rouge birds, the crude protein concentrations in the diet presented inconsistent results and cyclic heat stress did not affect the performance.The carbon turnover rate was affected in the Cobb 500 (R) strain, with a high protein content reducing carbon turnover in the evaluated tissues (liver and muscles). Feed intake had a greater impact on carbon turnover rates than cyclic heat stress. The Label Rouge birds were not affected by the evaluated factors, suggesting that genetic improvement has a leading role on tissue carbon turnover.There is a genetic influence on carbon turnover in the liver and muscle tissues of broiler chickens. In addition, genetically fast-growing broilers are more susceptible to variations in diet composition and environmental temperature than less rapidly growing animals. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-01-02 2018-11-26T16:27:58Z 2018-11-26T16:27:58Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1080/00071668.2015.1115467 British Poultry Science. Abingdon: Taylor & Francis Ltd, v. 57, n. 1, p. 84-92, 2016. 0007-1668 http://hdl.handle.net/11449/161306 10.1080/00071668.2015.1115467 WOS:000371907400009 WOS000371907400009.pdf |
url |
http://dx.doi.org/10.1080/00071668.2015.1115467 http://hdl.handle.net/11449/161306 |
identifier_str_mv |
British Poultry Science. Abingdon: Taylor & Francis Ltd, v. 57, n. 1, p. 84-92, 2016. 0007-1668 10.1080/00071668.2015.1115467 WOS:000371907400009 WOS000371907400009.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
British Poultry Science 0,477 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
84-92 application/pdf |
dc.publisher.none.fl_str_mv |
Taylor & Francis Ltd |
publisher.none.fl_str_mv |
Taylor & Francis Ltd |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
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1808129349228953600 |