The effects of alternative forced-molting methods on the performance and egg quality of commercial layers
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1516-635X2009000200006 http://hdl.handle.net/11449/14340 |
Resumo: | This study aimed at studying alternative methods to induce molting and to compare them with the conventional forced-molting method (fasting). In the experiment, 420 70-week-old layers were used. The total experimental period was 140 days. Molting was induced during the first 28 days, when birds were submitted to the experimental treatments, and bird performance and egg quality parameters were determined during 112 subsequent days. A completely randomized experimental design was applied in a 5x2 factorial arrangement of five feed restriction regimes (0, 15, 30, 45, or 60g feed/bird/day) and with or without the addition of coarse-particle limestone to the feed, with seven replicates of six birds each. Egg quality was evaluated at the end of each 28-day period for three consecutive days, using three eggs per experimental unit (21 eggs/treatment), with a total of 210 eggs. It was concluded that feeding 15g feed/bird/day to induce molting is feasible, as birds submitted to this treatment presented similar performance and better egg quality than those submitted to fasting during molting. The use of coarse-particle limestone during molting did not influence post-molting bird performance or egg quality. |
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The effects of alternative forced-molting methods on the performance and egg quality of commercial layersEggshell thicknessfeed restrictionlimestonewelfareThis study aimed at studying alternative methods to induce molting and to compare them with the conventional forced-molting method (fasting). In the experiment, 420 70-week-old layers were used. The total experimental period was 140 days. Molting was induced during the first 28 days, when birds were submitted to the experimental treatments, and bird performance and egg quality parameters were determined during 112 subsequent days. A completely randomized experimental design was applied in a 5x2 factorial arrangement of five feed restriction regimes (0, 15, 30, 45, or 60g feed/bird/day) and with or without the addition of coarse-particle limestone to the feed, with seven replicates of six birds each. Egg quality was evaluated at the end of each 28-day period for three consecutive days, using three eggs per experimental unit (21 eggs/treatment), with a total of 210 eggs. It was concluded that feeding 15g feed/bird/day to induce molting is feasible, as birds submitted to this treatment presented similar performance and better egg quality than those submitted to fasting during molting. The use of coarse-particle limestone during molting did not influence post-molting bird performance or egg quality.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Unesp-Botucatu FMVZ Departamento de Produção AnimalUnesp-Botucatu FMVZ Department of Animal ProductionUnifenas Department of Animal ScienceUnesp-Botucatu FMVZ Departamento de Produção AnimalUnesp-Botucatu FMVZ Department of Animal ProductionFundação APINCO de Ciência e Tecnologia AvícolasUniversidade Estadual Paulista (Unesp)Unifenas Department of Animal ScienceMolino, AB [UNESP]Garcia, Edivaldo Antonio [UNESP]Berto, da [UNESP]Pelícia, KSilva, AP [UNESP]Vercese, F [UNESP]2013-09-30T18:27:56Z2014-05-20T13:41:21Z2013-09-30T18:27:56Z2014-05-20T13:41:21Z2009-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article109-113application/pdfhttp://dx.doi.org/10.1590/S1516-635X2009000200006Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 11, n. 2, p. 109-113, 2009.1516-635Xhttp://hdl.handle.net/11449/1434010.1590/S1516-635X2009000200006S1516-635X2009000200006WOS:000269654400006S1516-635X2009000200006.pdf67435913471067277728883010098049SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Ciência Avícola0.463info:eu-repo/semantics/openAccess2023-12-30T06:20:04Zoai:repositorio.unesp.br:11449/14340Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-12-30T06:20:04Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The effects of alternative forced-molting methods on the performance and egg quality of commercial layers |
title |
The effects of alternative forced-molting methods on the performance and egg quality of commercial layers |
spellingShingle |
The effects of alternative forced-molting methods on the performance and egg quality of commercial layers Molino, AB [UNESP] Eggshell thickness feed restriction limestone welfare |
title_short |
The effects of alternative forced-molting methods on the performance and egg quality of commercial layers |
title_full |
The effects of alternative forced-molting methods on the performance and egg quality of commercial layers |
title_fullStr |
The effects of alternative forced-molting methods on the performance and egg quality of commercial layers |
title_full_unstemmed |
The effects of alternative forced-molting methods on the performance and egg quality of commercial layers |
title_sort |
The effects of alternative forced-molting methods on the performance and egg quality of commercial layers |
author |
Molino, AB [UNESP] |
author_facet |
Molino, AB [UNESP] Garcia, Edivaldo Antonio [UNESP] Berto, da [UNESP] Pelícia, K Silva, AP [UNESP] Vercese, F [UNESP] |
author_role |
author |
author2 |
Garcia, Edivaldo Antonio [UNESP] Berto, da [UNESP] Pelícia, K Silva, AP [UNESP] Vercese, F [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Unifenas Department of Animal Science |
dc.contributor.author.fl_str_mv |
Molino, AB [UNESP] Garcia, Edivaldo Antonio [UNESP] Berto, da [UNESP] Pelícia, K Silva, AP [UNESP] Vercese, F [UNESP] |
dc.subject.por.fl_str_mv |
Eggshell thickness feed restriction limestone welfare |
topic |
Eggshell thickness feed restriction limestone welfare |
description |
This study aimed at studying alternative methods to induce molting and to compare them with the conventional forced-molting method (fasting). In the experiment, 420 70-week-old layers were used. The total experimental period was 140 days. Molting was induced during the first 28 days, when birds were submitted to the experimental treatments, and bird performance and egg quality parameters were determined during 112 subsequent days. A completely randomized experimental design was applied in a 5x2 factorial arrangement of five feed restriction regimes (0, 15, 30, 45, or 60g feed/bird/day) and with or without the addition of coarse-particle limestone to the feed, with seven replicates of six birds each. Egg quality was evaluated at the end of each 28-day period for three consecutive days, using three eggs per experimental unit (21 eggs/treatment), with a total of 210 eggs. It was concluded that feeding 15g feed/bird/day to induce molting is feasible, as birds submitted to this treatment presented similar performance and better egg quality than those submitted to fasting during molting. The use of coarse-particle limestone during molting did not influence post-molting bird performance or egg quality. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-06-01 2013-09-30T18:27:56Z 2013-09-30T18:27:56Z 2014-05-20T13:41:21Z 2014-05-20T13:41:21Z |
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/S1516-635X2009000200006 Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 11, n. 2, p. 109-113, 2009. 1516-635X http://hdl.handle.net/11449/14340 10.1590/S1516-635X2009000200006 S1516-635X2009000200006 WOS:000269654400006 S1516-635X2009000200006.pdf 6743591347106727 7728883010098049 |
url |
http://dx.doi.org/10.1590/S1516-635X2009000200006 http://hdl.handle.net/11449/14340 |
identifier_str_mv |
Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 11, n. 2, p. 109-113, 2009. 1516-635X 10.1590/S1516-635X2009000200006 S1516-635X2009000200006 WOS:000269654400006 S1516-635X2009000200006.pdf 6743591347106727 7728883010098049 |
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 |
109-113 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 |
|
_version_ |
1797790153788358656 |