High-fiber diets with reduced crude protein for commercial layers

Detalhes bibliográficos
Autor(a) principal: Praes, M. F. F. M. [UNESP]
Data de Publicação: 2014
Outros Autores: Junqueira, O. M. [UNESP], Pereira, A. A., Filardi, R. S. [UNESP], Duarte, K. F. [UNESP], Sgavioli, S. [UNESP], Alva, J. C. R. [UNESP], Domingues, C. H. F. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1516-635x160243-50
http://hdl.handle.net/11449/110281
Resumo: This study aimed at evaluating diets containing different fiber sources and two crude protein levels on the performance, egg quality, and nitrogen metabolism of commercial layers. In total, 392 48-wk-old Isa Brown layers were distributed according to a completely randomized experimental design in a 3x2+1 (control) factorial arrangement, resulting in seven treatments with seven replicates of eight birds each. Treatments consisted of three fiber feedstuffs (cottonseed hulls, soybean hulls, and rice hulls) and two dietary crude protein levels (12% and 16%). Cottonseed hulls associated with the high crude protein level (16%) resulted in the worst feed conversion ratio per dozen eggs. Diets with 16% crude protein resulted in the highest feed intake, egg production, egg weight, egg mass values, and improved feed conversion ratio (kg eggs/kg feed). The dietary inclusion of soybean hulls determined low yolk pigmentation, and of rice hulls, low egg specific gravity. The 16% crude protein diet with rice hulls promoted the best feed conversion ratio. Hens fed the reference diet presented higher egg mass and better feed conversion ratio per kg eggs and per dozen eggs. Hens fed the diets with low crude protein level (12%) had reduced nitrogen excretion, but presented worse egg production.
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spelling High-fiber diets with reduced crude protein for commercial layersRice hullscottonseed hullssoybean hullscrude proteinegg productionThis study aimed at evaluating diets containing different fiber sources and two crude protein levels on the performance, egg quality, and nitrogen metabolism of commercial layers. In total, 392 48-wk-old Isa Brown layers were distributed according to a completely randomized experimental design in a 3x2+1 (control) factorial arrangement, resulting in seven treatments with seven replicates of eight birds each. Treatments consisted of three fiber feedstuffs (cottonseed hulls, soybean hulls, and rice hulls) and two dietary crude protein levels (12% and 16%). Cottonseed hulls associated with the high crude protein level (16%) resulted in the worst feed conversion ratio per dozen eggs. Diets with 16% crude protein resulted in the highest feed intake, egg production, egg weight, egg mass values, and improved feed conversion ratio (kg eggs/kg feed). The dietary inclusion of soybean hulls determined low yolk pigmentation, and of rice hulls, low egg specific gravity. The 16% crude protein diet with rice hulls promoted the best feed conversion ratio. Hens fed the reference diet presented higher egg mass and better feed conversion ratio per kg eggs and per dozen eggs. Hens fed the diets with low crude protein level (12%) had reduced nitrogen excretion, but presented worse egg production.Universidade Estadual Paulista Júlio de Mesquita Filho School of Agricultural and Veterinary Sciences Department of Animal ScienceUniversidade Federal de Alagoas/Campus Department of Animal ScienceUniversidade Estadual Paulista Júlio de Mesquita Filho School of Engineering of Ilha Solteira Department of Biology and Animal ScienceUniversidade Estadual Paulista Júlio de Mesquita Filho School of Agricultural and Veterinary Sciences Department of Animal ScienceUniversidade Estadual Paulista Júlio de Mesquita Filho School of Engineering of Ilha Solteira Department of Biology and Animal ScienceFundação APINCO de Ciência e Tecnologia AvícolasUniversidade Estadual Paulista (Unesp)Universidade Federal de Alagoas (UFAL)Praes, M. F. F. M. [UNESP]Junqueira, O. M. [UNESP]Pereira, A. A.Filardi, R. S. [UNESP]Duarte, K. F. [UNESP]Sgavioli, S. [UNESP]Alva, J. C. R. [UNESP]Domingues, C. H. F. [UNESP]2014-10-01T13:08:59Z2014-10-01T13:08:59Z2014-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article43-49application/pdfhttp://dx.doi.org/10.1590/1516-635x160243-50Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 16, n. 2, p. 43-49, 2014.1516-635Xhttp://hdl.handle.net/11449/11028110.1590/1516-635x160243-50S1516-635X2014000200006S1516-635X2014000200006.pdf93512752880317098942267939443572SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Ciência Avícola0.463info:eu-repo/semantics/openAccess2024-07-04T15:32:22Zoai:repositorio.unesp.br:11449/110281Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:04:38.647998Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv High-fiber diets with reduced crude protein for commercial layers
title High-fiber diets with reduced crude protein for commercial layers
spellingShingle High-fiber diets with reduced crude protein for commercial layers
Praes, M. F. F. M. [UNESP]
Rice hulls
cottonseed hulls
soybean hulls
crude protein
egg production
title_short High-fiber diets with reduced crude protein for commercial layers
title_full High-fiber diets with reduced crude protein for commercial layers
title_fullStr High-fiber diets with reduced crude protein for commercial layers
title_full_unstemmed High-fiber diets with reduced crude protein for commercial layers
title_sort High-fiber diets with reduced crude protein for commercial layers
author Praes, M. F. F. M. [UNESP]
author_facet Praes, M. F. F. M. [UNESP]
Junqueira, O. M. [UNESP]
Pereira, A. A.
Filardi, R. S. [UNESP]
Duarte, K. F. [UNESP]
Sgavioli, S. [UNESP]
Alva, J. C. R. [UNESP]
Domingues, C. H. F. [UNESP]
author_role author
author2 Junqueira, O. M. [UNESP]
Pereira, A. A.
Filardi, R. S. [UNESP]
Duarte, K. F. [UNESP]
Sgavioli, S. [UNESP]
Alva, J. C. R. [UNESP]
Domingues, C. H. F. [UNESP]
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal de Alagoas (UFAL)
dc.contributor.author.fl_str_mv Praes, M. F. F. M. [UNESP]
Junqueira, O. M. [UNESP]
Pereira, A. A.
Filardi, R. S. [UNESP]
Duarte, K. F. [UNESP]
Sgavioli, S. [UNESP]
Alva, J. C. R. [UNESP]
Domingues, C. H. F. [UNESP]
dc.subject.por.fl_str_mv Rice hulls
cottonseed hulls
soybean hulls
crude protein
egg production
topic Rice hulls
cottonseed hulls
soybean hulls
crude protein
egg production
description This study aimed at evaluating diets containing different fiber sources and two crude protein levels on the performance, egg quality, and nitrogen metabolism of commercial layers. In total, 392 48-wk-old Isa Brown layers were distributed according to a completely randomized experimental design in a 3x2+1 (control) factorial arrangement, resulting in seven treatments with seven replicates of eight birds each. Treatments consisted of three fiber feedstuffs (cottonseed hulls, soybean hulls, and rice hulls) and two dietary crude protein levels (12% and 16%). Cottonseed hulls associated with the high crude protein level (16%) resulted in the worst feed conversion ratio per dozen eggs. Diets with 16% crude protein resulted in the highest feed intake, egg production, egg weight, egg mass values, and improved feed conversion ratio (kg eggs/kg feed). The dietary inclusion of soybean hulls determined low yolk pigmentation, and of rice hulls, low egg specific gravity. The 16% crude protein diet with rice hulls promoted the best feed conversion ratio. Hens fed the reference diet presented higher egg mass and better feed conversion ratio per kg eggs and per dozen eggs. Hens fed the diets with low crude protein level (12%) had reduced nitrogen excretion, but presented worse egg production.
publishDate 2014
dc.date.none.fl_str_mv 2014-10-01T13:08:59Z
2014-10-01T13:08:59Z
2014-06-01
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/10.1590/1516-635x160243-50
Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 16, n. 2, p. 43-49, 2014.
1516-635X
http://hdl.handle.net/11449/110281
10.1590/1516-635x160243-50
S1516-635X2014000200006
S1516-635X2014000200006.pdf
9351275288031709
8942267939443572
url http://dx.doi.org/10.1590/1516-635x160243-50
http://hdl.handle.net/11449/110281
identifier_str_mv Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 16, n. 2, p. 43-49, 2014.
1516-635X
10.1590/1516-635x160243-50
S1516-635X2014000200006
S1516-635X2014000200006.pdf
9351275288031709
8942267939443572
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Brasileira de Ciência Avícola
0.463
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 43-49
application/pdf
dc.publisher.none.fl_str_mv Fundação APINCO de Ciência e Tecnologia Avícolas
publisher.none.fl_str_mv Fundação APINCO de Ciência e Tecnologia Avícolas
dc.source.none.fl_str_mv SciELO
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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