The effects of restricting enzyme supplementation in rye-based diets for broilers

Detalhes bibliográficos
Autor(a) principal: Santos, C.I.
Data de Publicação: 2013
Outros Autores: Ribeiro, T., Ponte, P.I.P., Fernandes, V.O., Falcão-Cunha, L., Freire, J.P.B., Prates, J.A.M., Ferreira, L.M.A., Fontes, C.M.G.A., Lordelo, M.M.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/11482
Resumo: The purpose of the current study was to restrict enzyme addition in order to evaluate if supplementation throughout the broiler production cycle is required. Here we analyze the possibility of circumscribing xylanase supplementation in rye-based diets to the earliest periods of the life of the broiler. In the current experiment, 1-day-old chicks were divided into 5 treatments and fed a rye-based diet supplemented with a commercial enzyme mixture containing a microbial xylanase. The five treatments consisted of birds fed a nonsupplemented diet and birds fed diets supplemented with the exogenous enzyme for the entire period of the experiment (28 days), the first 21 days, the first 14 days or the first 7 days of the trial. The data revealed that broilers fed diets supplemented with enzymes during 28 days had similar (P>0.05) growth performance, gastrointestinal enzyme activity and relative organ sizes to broilers fed supplemented diets only in the first 21 days of the experimental period. These results suggest that the action of exogenous enzymes, when used to supplement rye-based diets for broilers, may be restricted to the first 21 days of the broiler’s production cycle without compromising animal performance
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spelling The effects of restricting enzyme supplementation in rye-based diets for broilersbroilerenzymeryexylanaseThe purpose of the current study was to restrict enzyme addition in order to evaluate if supplementation throughout the broiler production cycle is required. Here we analyze the possibility of circumscribing xylanase supplementation in rye-based diets to the earliest periods of the life of the broiler. In the current experiment, 1-day-old chicks were divided into 5 treatments and fed a rye-based diet supplemented with a commercial enzyme mixture containing a microbial xylanase. The five treatments consisted of birds fed a nonsupplemented diet and birds fed diets supplemented with the exogenous enzyme for the entire period of the experiment (28 days), the first 21 days, the first 14 days or the first 7 days of the trial. The data revealed that broilers fed diets supplemented with enzymes during 28 days had similar (P>0.05) growth performance, gastrointestinal enzyme activity and relative organ sizes to broilers fed supplemented diets only in the first 21 days of the experimental period. These results suggest that the action of exogenous enzymes, when used to supplement rye-based diets for broilers, may be restricted to the first 21 days of the broiler’s production cycle without compromising animal performanceElsevierRepositório da Universidade de LisboaSantos, C.I.Ribeiro, T.Ponte, P.I.P.Fernandes, V.O.Falcão-Cunha, L.Freire, J.P.B.Prates, J.A.M.Ferreira, L.M.A.Fontes, C.M.G.A.Lordelo, M.M.2016-05-03T14:01:37Z20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/11482eng"Animal Feed Science and Technology". ISSN 0377-8401. 186 (2013) p. 214-217info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-11-20T19:05:42Zoai:repositorio.ul.pt:10400.5/11482Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-11-20T19:05:42Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv The effects of restricting enzyme supplementation in rye-based diets for broilers
title The effects of restricting enzyme supplementation in rye-based diets for broilers
spellingShingle The effects of restricting enzyme supplementation in rye-based diets for broilers
Santos, C.I.
broiler
enzyme
rye
xylanase
title_short The effects of restricting enzyme supplementation in rye-based diets for broilers
title_full The effects of restricting enzyme supplementation in rye-based diets for broilers
title_fullStr The effects of restricting enzyme supplementation in rye-based diets for broilers
title_full_unstemmed The effects of restricting enzyme supplementation in rye-based diets for broilers
title_sort The effects of restricting enzyme supplementation in rye-based diets for broilers
author Santos, C.I.
author_facet Santos, C.I.
Ribeiro, T.
Ponte, P.I.P.
Fernandes, V.O.
Falcão-Cunha, L.
Freire, J.P.B.
Prates, J.A.M.
Ferreira, L.M.A.
Fontes, C.M.G.A.
Lordelo, M.M.
author_role author
author2 Ribeiro, T.
Ponte, P.I.P.
Fernandes, V.O.
Falcão-Cunha, L.
Freire, J.P.B.
Prates, J.A.M.
Ferreira, L.M.A.
Fontes, C.M.G.A.
Lordelo, M.M.
author2_role author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Santos, C.I.
Ribeiro, T.
Ponte, P.I.P.
Fernandes, V.O.
Falcão-Cunha, L.
Freire, J.P.B.
Prates, J.A.M.
Ferreira, L.M.A.
Fontes, C.M.G.A.
Lordelo, M.M.
dc.subject.por.fl_str_mv broiler
enzyme
rye
xylanase
topic broiler
enzyme
rye
xylanase
description The purpose of the current study was to restrict enzyme addition in order to evaluate if supplementation throughout the broiler production cycle is required. Here we analyze the possibility of circumscribing xylanase supplementation in rye-based diets to the earliest periods of the life of the broiler. In the current experiment, 1-day-old chicks were divided into 5 treatments and fed a rye-based diet supplemented with a commercial enzyme mixture containing a microbial xylanase. The five treatments consisted of birds fed a nonsupplemented diet and birds fed diets supplemented with the exogenous enzyme for the entire period of the experiment (28 days), the first 21 days, the first 14 days or the first 7 days of the trial. The data revealed that broilers fed diets supplemented with enzymes during 28 days had similar (P>0.05) growth performance, gastrointestinal enzyme activity and relative organ sizes to broilers fed supplemented diets only in the first 21 days of the experimental period. These results suggest that the action of exogenous enzymes, when used to supplement rye-based diets for broilers, may be restricted to the first 21 days of the broiler’s production cycle without compromising animal performance
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-01-01T00:00:00Z
2016-05-03T14:01:37Z
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://hdl.handle.net/10400.5/11482
url http://hdl.handle.net/10400.5/11482
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Animal Feed Science and Technology". ISSN 0377-8401. 186 (2013) p. 214-217
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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