Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/4621 |
Resumo: | Three assays were carried out to determine the digestible methionine+cystine (Met+Cys) requirement for ISA Label broilers from both sexes. The birds were reared in free range system on starting phase (1 to 28 days), growing phase (28 to 56 days) and finishing phase (56 to 84 days). Four hundred and eighty birds were distributed into 24 pens, each one composed of shelter (3.13 m(2)) and pasture (72.87 m(2)). The experimental design was completely randomized with eight treatments as factorial arrangement (four Met+Cys levels and two sexes) with three replicates of 20 birds. The digestible Met+Cys levels were 0.532; 0.652; 0.772; 0.892% for starting phase; 0.515; 0.635; 0.755; 0.875% for growing phase and 0.469; 0.589; 0.709; 0.829% for finishing phase. The analyzed parameters were performance, carcass yield, body protein and fat deposition, weight and protein concentration in feathers. In the starting phase, the digestible Met+Cys level estimated for males was 0.765 and 0.803% for females, corresponding to 0.252 and 0.268% of Met+Cys/Mcal of ME, respectively. For the growing phase, the digestible Met+Cys level estimated was 0.716% for both sexes, corresponding to 0.235% of Met+Cys/Mcal of ME. For the finishing phase, the Met+Cys levels were 0.756 and 0.597% for males and females, corresponding to 0.244 and 0.193% of Met+Cys/Mcal of ME respectively. |
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2946 |
spelling |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range systemBroilersNaked-neck birdssulphurous amino acidsThree assays were carried out to determine the digestible methionine+cystine (Met+Cys) requirement for ISA Label broilers from both sexes. The birds were reared in free range system on starting phase (1 to 28 days), growing phase (28 to 56 days) and finishing phase (56 to 84 days). Four hundred and eighty birds were distributed into 24 pens, each one composed of shelter (3.13 m(2)) and pasture (72.87 m(2)). The experimental design was completely randomized with eight treatments as factorial arrangement (four Met+Cys levels and two sexes) with three replicates of 20 birds. The digestible Met+Cys levels were 0.532; 0.652; 0.772; 0.892% for starting phase; 0.515; 0.635; 0.755; 0.875% for growing phase and 0.469; 0.589; 0.709; 0.829% for finishing phase. The analyzed parameters were performance, carcass yield, body protein and fat deposition, weight and protein concentration in feathers. In the starting phase, the digestible Met+Cys level estimated for males was 0.765 and 0.803% for females, corresponding to 0.252 and 0.268% of Met+Cys/Mcal of ME, respectively. For the growing phase, the digestible Met+Cys level estimated was 0.716% for both sexes, corresponding to 0.235% of Met+Cys/Mcal of ME. For the finishing phase, the Met+Cys levels were 0.756 and 0.597% for males and females, corresponding to 0.244 and 0.193% of Met+Cys/Mcal of ME respectively.UNESP, FCAV, Dept Zootecnia, Jaboticabal, SP, BrazilCaunesp, Jaboticabal, SP, BrazilUNESP, FCAV, Dept Morfol & Fisiol Anim, Jaboticabal, SP, BrazilUNESP, FCAV, Dept Zootecnia, Jaboticabal, SP, BrazilCaunesp, Jaboticabal, SP, BrazilUNESP, FCAV, Dept Morfol & Fisiol Anim, Jaboticabal, SP, BrazilRevista Brasileira Zootecnia Brazilian Journal Animal SciUniversidade Estadual Paulista (Unesp)Nagib Nascimento, Daphinne CardosoSakomura, Nilva Kazue [UNESP]de Siqueira, Jefferson CostaFreitas Pinheiro, Sandra ReginaKochenborger Fernandes, Joao Batista [UNESP]Furlan, Renato Luis [UNESP]2014-05-20T13:18:36Z2014-05-20T13:18:36Z2009-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article869-878Revista Brasileira de Zootecnia-brazilian Journal of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 38, n. 5, p. 869-878, 2009.1516-3598http://hdl.handle.net/11449/4621WOS:000268446600013615232900027485808064094841596420000-0001-9549-03290000-0001-5707-4113Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Zootecnia = Brazilian Journal of Animal Science0,337info:eu-repo/semantics/openAccess2024-06-07T18:42:21Zoai:repositorio.unesp.br:11449/4621Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:48:04.908339Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system |
title |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system |
spellingShingle |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system Nagib Nascimento, Daphinne Cardoso Broilers Naked-neck birds sulphurous amino acids |
title_short |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system |
title_full |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system |
title_fullStr |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system |
title_full_unstemmed |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system |
title_sort |
Digestible methionine plus cystine requirements of ISA Label broilers reared in free-range system |
author |
Nagib Nascimento, Daphinne Cardoso |
author_facet |
Nagib Nascimento, Daphinne Cardoso Sakomura, Nilva Kazue [UNESP] de Siqueira, Jefferson Costa Freitas Pinheiro, Sandra Regina Kochenborger Fernandes, Joao Batista [UNESP] Furlan, Renato Luis [UNESP] |
author_role |
author |
author2 |
Sakomura, Nilva Kazue [UNESP] de Siqueira, Jefferson Costa Freitas Pinheiro, Sandra Regina Kochenborger Fernandes, Joao Batista [UNESP] Furlan, Renato Luis [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Nagib Nascimento, Daphinne Cardoso Sakomura, Nilva Kazue [UNESP] de Siqueira, Jefferson Costa Freitas Pinheiro, Sandra Regina Kochenborger Fernandes, Joao Batista [UNESP] Furlan, Renato Luis [UNESP] |
dc.subject.por.fl_str_mv |
Broilers Naked-neck birds sulphurous amino acids |
topic |
Broilers Naked-neck birds sulphurous amino acids |
description |
Three assays were carried out to determine the digestible methionine+cystine (Met+Cys) requirement for ISA Label broilers from both sexes. The birds were reared in free range system on starting phase (1 to 28 days), growing phase (28 to 56 days) and finishing phase (56 to 84 days). Four hundred and eighty birds were distributed into 24 pens, each one composed of shelter (3.13 m(2)) and pasture (72.87 m(2)). The experimental design was completely randomized with eight treatments as factorial arrangement (four Met+Cys levels and two sexes) with three replicates of 20 birds. The digestible Met+Cys levels were 0.532; 0.652; 0.772; 0.892% for starting phase; 0.515; 0.635; 0.755; 0.875% for growing phase and 0.469; 0.589; 0.709; 0.829% for finishing phase. The analyzed parameters were performance, carcass yield, body protein and fat deposition, weight and protein concentration in feathers. In the starting phase, the digestible Met+Cys level estimated for males was 0.765 and 0.803% for females, corresponding to 0.252 and 0.268% of Met+Cys/Mcal of ME, respectively. For the growing phase, the digestible Met+Cys level estimated was 0.716% for both sexes, corresponding to 0.235% of Met+Cys/Mcal of ME. For the finishing phase, the Met+Cys levels were 0.756 and 0.597% for males and females, corresponding to 0.244 and 0.193% of Met+Cys/Mcal of ME respectively. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-05-01 2014-05-20T13:18:36Z 2014-05-20T13:18:36Z |
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 Zootecnia-brazilian Journal of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 38, n. 5, p. 869-878, 2009. 1516-3598 http://hdl.handle.net/11449/4621 WOS:000268446600013 6152329000274858 0806409484159642 0000-0001-9549-0329 0000-0001-5707-4113 |
identifier_str_mv |
Revista Brasileira de Zootecnia-brazilian Journal of Animal Science. Vicosa-mg: Revista Brasileira Zootecnia Brazilian Journal Animal Sci, v. 38, n. 5, p. 869-878, 2009. 1516-3598 WOS:000268446600013 6152329000274858 0806409484159642 0000-0001-9549-0329 0000-0001-5707-4113 |
url |
http://hdl.handle.net/11449/4621 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zootecnia = Brazilian Journal of Animal Science 0,337 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
869-878 |
dc.publisher.none.fl_str_mv |
Revista Brasileira Zootecnia Brazilian Journal Animal Sci |
publisher.none.fl_str_mv |
Revista Brasileira Zootecnia Brazilian Journal Animal Sci |
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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1808128981586673664 |