Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/225285 |
Resumo: | One experiment was conducted to evaluate the effect of dietary additional methionine levels during the grower period (22 a 42 days of age) on performance, carcass yield, and chemical composition of broiler chickens. Two thousand sexed Ross broilers, were reared in a randomized factorial 2×5 design (sex and methionine levels) with four replications of 50 birds each. Experimental diets were formulated to contain 100%, 110%, 120%, 130% and 140% of methinine level suggested by NRC (1994). Methionine levels were, .38, .42, .46. .50 and .54%, respectively. At 42 days of age birds were slaughtered to evaluate carcass yield, abdominal fat and chemical composition. Increasing methionine level did not affect (p>.05) weight gain, feed consumption, feed conversion, mortality, abdominal fat, and carcass yield and breast and thigh moisture, protein, fat and ash.. Interaction between methionine level and sex was not significant (p>.05), but females presented higher abdominal fat (p<.05) than males. As methionine level did not affected performance and carcass yield and composition, it was concluded that the methionine level during grower period (22 to 42 days of age) suggested by NRC (1994) is adequate. |
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Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corteEffect of methionine supplementation on performance and carcass yield of broiler chickensBroiler chickensCarcass yieldChemical compositionMethionineOne experiment was conducted to evaluate the effect of dietary additional methionine levels during the grower period (22 a 42 days of age) on performance, carcass yield, and chemical composition of broiler chickens. Two thousand sexed Ross broilers, were reared in a randomized factorial 2×5 design (sex and methionine levels) with four replications of 50 birds each. Experimental diets were formulated to contain 100%, 110%, 120%, 130% and 140% of methinine level suggested by NRC (1994). Methionine levels were, .38, .42, .46. .50 and .54%, respectively. At 42 days of age birds were slaughtered to evaluate carcass yield, abdominal fat and chemical composition. Increasing methionine level did not affect (p>.05) weight gain, feed consumption, feed conversion, mortality, abdominal fat, and carcass yield and breast and thigh moisture, protein, fat and ash.. Interaction between methionine level and sex was not significant (p>.05), but females presented higher abdominal fat (p<.05) than males. As methionine level did not affected performance and carcass yield and composition, it was concluded that the methionine level during grower period (22 to 42 days of age) suggested by NRC (1994) is adequate.Faculdade de Agronomia Luis Meneghel, BandeirantesDPEA-FMVZ/UNESP, BotucatuFaculdade de Ciências Agronômicas UNESP, BotucatuUniversidade São Marcos, São PauloPesquisador Científico do Instituto de Zootecnia de Nova Odessa, BrotasDepto. de Produção e Exploração Animal FMVZ/UNESP, Caixa Postal, 560, Botucatu - SPDPEA-FMVZ/UNESP, BotucatuFaculdade de Ciências Agronômicas UNESP, BotucatuDepto. de Produção e Exploração Animal FMVZ/UNESP, Caixa Postal, 560, Botucatu - SPFaculdade de Agronomia Luis MeneghelUniversidade Estadual Paulista (UNESP)Universidade São MarcosPesquisador Científico do Instituto de Zootecnia de Nova OdessaWhitaker, H. M.A. [UNESP]Mendes, A. A. [UNESP]Garcia, E. A. [UNESP]Roça, R. O. [UNESP]Varolli, J. C. [UNESP]Saldanha, E. P.B. [UNESP]2022-04-28T20:44:01Z2022-04-28T20:44:01Z2002-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleRevista Brasileira de Ciencia Avicola, v. 4, n. 1, 2002.1516-635Xhttp://hdl.handle.net/11449/2252852-s2.0-52649138396Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Ciencia Avicolainfo:eu-repo/semantics/openAccess2024-09-09T13:01:09Zoai:repositorio.unesp.br:11449/225285Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T13:01:09Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte Effect of methionine supplementation on performance and carcass yield of broiler chickens |
title |
Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte |
spellingShingle |
Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte Whitaker, H. M.A. [UNESP] Broiler chickens Carcass yield Chemical composition Methionine |
title_short |
Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte |
title_full |
Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte |
title_fullStr |
Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte |
title_full_unstemmed |
Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte |
title_sort |
Efeito da suplementação de metionina sobre o desempenho e a avaliação de carcaças de frangos de corte |
author |
Whitaker, H. M.A. [UNESP] |
author_facet |
Whitaker, H. M.A. [UNESP] Mendes, A. A. [UNESP] Garcia, E. A. [UNESP] Roça, R. O. [UNESP] Varolli, J. C. [UNESP] Saldanha, E. P.B. [UNESP] |
author_role |
author |
author2 |
Mendes, A. A. [UNESP] Garcia, E. A. [UNESP] Roça, R. O. [UNESP] Varolli, J. C. [UNESP] Saldanha, E. P.B. [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Faculdade de Agronomia Luis Meneghel Universidade Estadual Paulista (UNESP) Universidade São Marcos Pesquisador Científico do Instituto de Zootecnia de Nova Odessa |
dc.contributor.author.fl_str_mv |
Whitaker, H. M.A. [UNESP] Mendes, A. A. [UNESP] Garcia, E. A. [UNESP] Roça, R. O. [UNESP] Varolli, J. C. [UNESP] Saldanha, E. P.B. [UNESP] |
dc.subject.por.fl_str_mv |
Broiler chickens Carcass yield Chemical composition Methionine |
topic |
Broiler chickens Carcass yield Chemical composition Methionine |
description |
One experiment was conducted to evaluate the effect of dietary additional methionine levels during the grower period (22 a 42 days of age) on performance, carcass yield, and chemical composition of broiler chickens. Two thousand sexed Ross broilers, were reared in a randomized factorial 2×5 design (sex and methionine levels) with four replications of 50 birds each. Experimental diets were formulated to contain 100%, 110%, 120%, 130% and 140% of methinine level suggested by NRC (1994). Methionine levels were, .38, .42, .46. .50 and .54%, respectively. At 42 days of age birds were slaughtered to evaluate carcass yield, abdominal fat and chemical composition. Increasing methionine level did not affect (p>.05) weight gain, feed consumption, feed conversion, mortality, abdominal fat, and carcass yield and breast and thigh moisture, protein, fat and ash.. Interaction between methionine level and sex was not significant (p>.05), but females presented higher abdominal fat (p<.05) than males. As methionine level did not affected performance and carcass yield and composition, it was concluded that the methionine level during grower period (22 to 42 days of age) suggested by NRC (1994) is adequate. |
publishDate |
2002 |
dc.date.none.fl_str_mv |
2002-12-01 2022-04-28T20:44:01Z 2022-04-28T20:44:01Z |
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 |
Revista Brasileira de Ciencia Avicola, v. 4, n. 1, 2002. 1516-635X http://hdl.handle.net/11449/225285 2-s2.0-52649138396 |
identifier_str_mv |
Revista Brasileira de Ciencia Avicola, v. 4, n. 1, 2002. 1516-635X 2-s2.0-52649138396 |
url |
http://hdl.handle.net/11449/225285 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Ciencia Avicola |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
repositoriounesp@unesp.br |
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1810021325328089088 |