Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte
Autor(a) principal: | |
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Data de Publicação: | 2004 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1516-35982004000700014 http://hdl.handle.net/11449/67929 |
Resumo: | The objective of this work was to study the effect of dietary ME levels on the performance and the energy metabolism of male broilers on growing phase, from 22 to 43 days old. Two hundred and eighty-eight broilers were ramdomly assigned to three energy levels (3,050; 3,200 and 3,350 kcal/kg) and three feeding levels (ad libitum, 75% and 50% ad libitum), with four replicates of eight birds, to determine the energy maintenance requirements and the energy efficiency utilization. The method used was the comparative slaughter. Twelve birds were sacrificed in the beginning of trial to determine the initial body composition and 144 birds were used to determine the AMEn of diets according to ME levels and feeding levels. The dietary ME levels affected the ME intake and consequently in retained body energy (RE) and heat production (HP). The maintenance metabolizable energy requirements were: 131, 141 and 132 kcal/kg of W 0.75/day for 3,350; 3,200 and 3,050 ME/kg, respectively. The highest ME level promoted better performance of the birds, however, the medium ME level provide better values of efficiency for protein deposition and for fat deposition, consequently, lower body fat composition, showing better carcass quality. |
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Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corteEffect of dietary metabolizable energy on energy metabolism and performance in broiler chickensDietary energy levelsEfficiency of energy utilizationEnergetic metabolismMaintenance energy requirementAvesGallus gallusThe objective of this work was to study the effect of dietary ME levels on the performance and the energy metabolism of male broilers on growing phase, from 22 to 43 days old. Two hundred and eighty-eight broilers were ramdomly assigned to three energy levels (3,050; 3,200 and 3,350 kcal/kg) and three feeding levels (ad libitum, 75% and 50% ad libitum), with four replicates of eight birds, to determine the energy maintenance requirements and the energy efficiency utilization. The method used was the comparative slaughter. Twelve birds were sacrificed in the beginning of trial to determine the initial body composition and 144 birds were used to determine the AMEn of diets according to ME levels and feeding levels. The dietary ME levels affected the ME intake and consequently in retained body energy (RE) and heat production (HP). The maintenance metabolizable energy requirements were: 131, 141 and 132 kcal/kg of W 0.75/day for 3,350; 3,200 and 3,050 ME/kg, respectively. The highest ME level promoted better performance of the birds, however, the medium ME level provide better values of efficiency for protein deposition and for fat deposition, consequently, lower body fat composition, showing better carcass quality.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Departamento de Zootecnia FCAV-UNESP Bolsista Pesquisador do CNPq, Jaboticabal-SPFCAV-UNESP, Jaboticabal-SPDepartamento de Zootecnia UFRPE, Recife-PEDepartamento de Zootecnia FCAV-UNESP Bolsista Pesquisador do CNPq, Jaboticabal-SPFCAV-UNESP, Jaboticabal-SPUniversidade Estadual Paulista (Unesp)Universidade Federal Rural de Pernambuco (UFRPE)Sakomura, Nilva Kazue [UNESP]Longo, Flavio Alves [UNESP]Bôa-Viagem, Carlos [UNESP]Watanabe, KleberPelícia, KleberFreitas, Ednardo Rodrigues2014-05-27T11:21:11Z2014-05-27T11:21:11Z2004-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1758-1767application/pdfhttp://dx.doi.org/10.1590/S1516-35982004000700014Revista Brasileira de Zootecnia, v. 33, n. 6 SUPPL. 1, p. 1758-1767, 2004.1516-3598http://hdl.handle.net/11449/6792910.1590/S1516-35982004000700014S1516-35982004000700014WOS:0002279014000142-s2.0-315444709092-s2.0-31544470909.pdf61523290002748580000-0001-5707-4113Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Zootecnia0,337info:eu-repo/semantics/openAccess2024-06-07T18:40:39Zoai:repositorio.unesp.br:11449/67929Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:47:11.043335Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte Effect of dietary metabolizable energy on energy metabolism and performance in broiler chickens |
title |
Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte |
spellingShingle |
Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte Sakomura, Nilva Kazue [UNESP] Dietary energy levels Efficiency of energy utilization Energetic metabolism Maintenance energy requirement Aves Gallus gallus |
title_short |
Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte |
title_full |
Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte |
title_fullStr |
Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte |
title_full_unstemmed |
Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte |
title_sort |
Efeito do nível de energia metabolizável da dieta no desempenho e metabolismo energético de frangos de corte |
author |
Sakomura, Nilva Kazue [UNESP] |
author_facet |
Sakomura, Nilva Kazue [UNESP] Longo, Flavio Alves [UNESP] Bôa-Viagem, Carlos [UNESP] Watanabe, Kleber Pelícia, Kleber Freitas, Ednardo Rodrigues |
author_role |
author |
author2 |
Longo, Flavio Alves [UNESP] Bôa-Viagem, Carlos [UNESP] Watanabe, Kleber Pelícia, Kleber Freitas, Ednardo Rodrigues |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal Rural de Pernambuco (UFRPE) |
dc.contributor.author.fl_str_mv |
Sakomura, Nilva Kazue [UNESP] Longo, Flavio Alves [UNESP] Bôa-Viagem, Carlos [UNESP] Watanabe, Kleber Pelícia, Kleber Freitas, Ednardo Rodrigues |
dc.subject.por.fl_str_mv |
Dietary energy levels Efficiency of energy utilization Energetic metabolism Maintenance energy requirement Aves Gallus gallus |
topic |
Dietary energy levels Efficiency of energy utilization Energetic metabolism Maintenance energy requirement Aves Gallus gallus |
description |
The objective of this work was to study the effect of dietary ME levels on the performance and the energy metabolism of male broilers on growing phase, from 22 to 43 days old. Two hundred and eighty-eight broilers were ramdomly assigned to three energy levels (3,050; 3,200 and 3,350 kcal/kg) and three feeding levels (ad libitum, 75% and 50% ad libitum), with four replicates of eight birds, to determine the energy maintenance requirements and the energy efficiency utilization. The method used was the comparative slaughter. Twelve birds were sacrificed in the beginning of trial to determine the initial body composition and 144 birds were used to determine the AMEn of diets according to ME levels and feeding levels. The dietary ME levels affected the ME intake and consequently in retained body energy (RE) and heat production (HP). The maintenance metabolizable energy requirements were: 131, 141 and 132 kcal/kg of W 0.75/day for 3,350; 3,200 and 3,050 ME/kg, respectively. The highest ME level promoted better performance of the birds, however, the medium ME level provide better values of efficiency for protein deposition and for fat deposition, consequently, lower body fat composition, showing better carcass quality. |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-11-01 2014-05-27T11:21:11Z 2014-05-27T11:21:11Z |
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/10.1590/S1516-35982004000700014 Revista Brasileira de Zootecnia, v. 33, n. 6 SUPPL. 1, p. 1758-1767, 2004. 1516-3598 http://hdl.handle.net/11449/67929 10.1590/S1516-35982004000700014 S1516-35982004000700014 WOS:000227901400014 2-s2.0-31544470909 2-s2.0-31544470909.pdf 6152329000274858 0000-0001-5707-4113 |
url |
http://dx.doi.org/10.1590/S1516-35982004000700014 http://hdl.handle.net/11449/67929 |
identifier_str_mv |
Revista Brasileira de Zootecnia, v. 33, n. 6 SUPPL. 1, p. 1758-1767, 2004. 1516-3598 10.1590/S1516-35982004000700014 S1516-35982004000700014 WOS:000227901400014 2-s2.0-31544470909 2-s2.0-31544470909.pdf 6152329000274858 0000-0001-5707-4113 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zootecnia 0,337 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1758-1767 application/pdf |
dc.source.none.fl_str_mv |
Scopus 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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1808128562912296960 |