Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.

Detalhes bibliográficos
Autor(a) principal: GOPINGER, E.
Data de Publicação: 2017
Outros Autores: KRABBE, E. L., SUREK, D., LOPES, L. dos S., AVILA, V. S. de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088010
Resumo: ABSTRACT: Broiler energy nutrition has attracted attention due to its economic importance, particularly during the rearing period of 22-42 days of age. There are many evidences that broilers changed their feed intake capacity due to genetic selection, especially when good quality pellets are fed, which suggests that modern broiler strains may achieve good performance when fed low metabolizable energy levels. The objective was to evaluate the energy efficiency, performance parameters, bone parameters, and carcass yield of 22- to 42-d-old broilers fed diets with energy levels below or above their requirements, while maintaining the density of all other nutrients. In total, 900 male broilers were distributed in a randomized block design, with five treatments consisting of five ME levels (2850, 2950, 3050, 3150 and 3250 kcal/kg). As expected, increasing dietary metabolizable energy reduced feed intake, feed conversion ratio, and energy efficiency. Interestingly, body weight, carcass and cut yields, and bone quality were not affected (p>0.05) by dietary ME levels. In conclusion, 22- to 42-d-old broilers fed pelleted and crumbled diets containing 2,850 to 3,250 kcal ME/kg (14% difference) achieved the same body weight and carcass yield at slaughter. The results show that energy efficiency may provide a more accurate interpretation of broiler performance than feed conversion ratio, and that broilers are able to change their feed intake, indicating an opportunity to improve their nutritional management.
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spelling Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.CarcassNutrição animalFrango de corteCarcaçaQualidadeMetabolismo energéticoAnimal nutritionBroiler chickensMeat and bone mealMetabolizable energyABSTRACT: Broiler energy nutrition has attracted attention due to its economic importance, particularly during the rearing period of 22-42 days of age. There are many evidences that broilers changed their feed intake capacity due to genetic selection, especially when good quality pellets are fed, which suggests that modern broiler strains may achieve good performance when fed low metabolizable energy levels. The objective was to evaluate the energy efficiency, performance parameters, bone parameters, and carcass yield of 22- to 42-d-old broilers fed diets with energy levels below or above their requirements, while maintaining the density of all other nutrients. In total, 900 male broilers were distributed in a randomized block design, with five treatments consisting of five ME levels (2850, 2950, 3050, 3150 and 3250 kcal/kg). As expected, increasing dietary metabolizable energy reduced feed intake, feed conversion ratio, and energy efficiency. Interestingly, body weight, carcass and cut yields, and bone quality were not affected (p>0.05) by dietary ME levels. In conclusion, 22- to 42-d-old broilers fed pelleted and crumbled diets containing 2,850 to 3,250 kcal ME/kg (14% difference) achieved the same body weight and carcass yield at slaughter. The results show that energy efficiency may provide a more accurate interpretation of broiler performance than feed conversion ratio, and that broilers are able to change their feed intake, indicating an opportunity to improve their nutritional management.EDENILSE GOPINGER, CNPq; EVERTON LUIS KRABBE, CNPSA; DIEGO SUREK, CNPSA; LETICIA DOS SANTOS LOPES, CNPSA; VALDIR SILVEIRA DE AVILA, CNPSA.GOPINGER, E.KRABBE, E. L.SUREK, D.LOPES, L. dos S.AVILA, V. S. de2018-02-22T00:40:56Z2018-02-22T00:40:56Z2018-02-2120172018-02-26T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleBrazilian Journal of Poultry Science=Revista Brasileira de Ciência Avícola, v. 19, n. 4, p. 559-565, 2017.http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088010enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2018-02-22T00:41:03Zoai:www.alice.cnptia.embrapa.br:doc/1088010Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542018-02-22T00:41:03falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542018-02-22T00:41:03Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.
title Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.
spellingShingle Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.
GOPINGER, E.
Carcass
Nutrição animal
Frango de corte
Carcaça
Qualidade
Metabolismo energético
Animal nutrition
Broiler chickens
Meat and bone meal
Metabolizable energy
title_short Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.
title_full Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.
title_fullStr Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.
title_full_unstemmed Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.
title_sort Live performance, carcass, and bone quality responses of grower and finisher broilers to dietary metabolizable energy levels.
author GOPINGER, E.
author_facet GOPINGER, E.
KRABBE, E. L.
SUREK, D.
LOPES, L. dos S.
AVILA, V. S. de
author_role author
author2 KRABBE, E. L.
SUREK, D.
LOPES, L. dos S.
AVILA, V. S. de
author2_role author
author
author
author
dc.contributor.none.fl_str_mv EDENILSE GOPINGER, CNPq; EVERTON LUIS KRABBE, CNPSA; DIEGO SUREK, CNPSA; LETICIA DOS SANTOS LOPES, CNPSA; VALDIR SILVEIRA DE AVILA, CNPSA.
dc.contributor.author.fl_str_mv GOPINGER, E.
KRABBE, E. L.
SUREK, D.
LOPES, L. dos S.
AVILA, V. S. de
dc.subject.por.fl_str_mv Carcass
Nutrição animal
Frango de corte
Carcaça
Qualidade
Metabolismo energético
Animal nutrition
Broiler chickens
Meat and bone meal
Metabolizable energy
topic Carcass
Nutrição animal
Frango de corte
Carcaça
Qualidade
Metabolismo energético
Animal nutrition
Broiler chickens
Meat and bone meal
Metabolizable energy
description ABSTRACT: Broiler energy nutrition has attracted attention due to its economic importance, particularly during the rearing period of 22-42 days of age. There are many evidences that broilers changed their feed intake capacity due to genetic selection, especially when good quality pellets are fed, which suggests that modern broiler strains may achieve good performance when fed low metabolizable energy levels. The objective was to evaluate the energy efficiency, performance parameters, bone parameters, and carcass yield of 22- to 42-d-old broilers fed diets with energy levels below or above their requirements, while maintaining the density of all other nutrients. In total, 900 male broilers were distributed in a randomized block design, with five treatments consisting of five ME levels (2850, 2950, 3050, 3150 and 3250 kcal/kg). As expected, increasing dietary metabolizable energy reduced feed intake, feed conversion ratio, and energy efficiency. Interestingly, body weight, carcass and cut yields, and bone quality were not affected (p>0.05) by dietary ME levels. In conclusion, 22- to 42-d-old broilers fed pelleted and crumbled diets containing 2,850 to 3,250 kcal ME/kg (14% difference) achieved the same body weight and carcass yield at slaughter. The results show that energy efficiency may provide a more accurate interpretation of broiler performance than feed conversion ratio, and that broilers are able to change their feed intake, indicating an opportunity to improve their nutritional management.
publishDate 2017
dc.date.none.fl_str_mv 2017
2018-02-22T00:40:56Z
2018-02-22T00:40:56Z
2018-02-21
2018-02-26T11:11:11Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Brazilian Journal of Poultry Science=Revista Brasileira de Ciência Avícola, v. 19, n. 4, p. 559-565, 2017.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088010
identifier_str_mv Brazilian Journal of Poultry Science=Revista Brasileira de Ciência Avícola, v. 19, n. 4, p. 559-565, 2017.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/1088010
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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