The effects of restricting enzyme supplementation in rye-based diets for broilers
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , , , , , |
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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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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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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1817549449516285952 |