Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1806-9061-2017-0560 http://hdl.handle.net/11449/211726 |
Resumo: | The aim of this study was to compare the effects of beak trimming by hot blade or infrared radiation on production indicators and plasma levels of corticosterone in pullets. During the rearing phase, an entirely random delineation was used a 2 x 3 factorial design (two different techniques for beak trimming x 3 strains), a total of six treatments with six repetitions of 20 hens. In the growing phase, the previous treatments were divided into 12, with eight repetitions with seven hens. These treatments were then distributed in a factorial design of 2 x 3 x 2 (two methodologies for beak trimming during rearing phase x three strains x with or without beak trimming at ten weeks of age). In the rearing phase the birds treated by infrared radiation had a lower total consumption and a longer beak length. In the growing phase, the execution of beak trimming at ten weeks of age, led to a lower total consumption and a lower body weight, but a better food conversion, when compared to those hens that did not have beak treatment. Beak trimming at ten weeks did not change the plasmatic levels of corticosterone. |
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Repositório Institucional da UNESP |
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Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming ProtocolsBeak treatmentinfrared radiationpoultry productionstresswelfare.The aim of this study was to compare the effects of beak trimming by hot blade or infrared radiation on production indicators and plasma levels of corticosterone in pullets. During the rearing phase, an entirely random delineation was used a 2 x 3 factorial design (two different techniques for beak trimming x 3 strains), a total of six treatments with six repetitions of 20 hens. In the growing phase, the previous treatments were divided into 12, with eight repetitions with seven hens. These treatments were then distributed in a factorial design of 2 x 3 x 2 (two methodologies for beak trimming during rearing phase x three strains x with or without beak trimming at ten weeks of age). In the rearing phase the birds treated by infrared radiation had a lower total consumption and a longer beak length. In the growing phase, the execution of beak trimming at ten weeks of age, led to a lower total consumption and a lower body weight, but a better food conversion, when compared to those hens that did not have beak treatment. Beak trimming at ten weeks did not change the plasmatic levels of corticosterone.University of Sao Paulo State, Faculty of Veterinary Medicine and Animal ScienceUniversity of Sao Paulo, Department of Animal Production and NutritionLOHMANN BRAZILState University of Mato Grosso, Department of Animal ScienceFundação APINCO de Ciência e Tecnologia AvícolasUniversidade de São Paulo (USP)LOHMANN BRAZILState University of Mato GrossoVieira, JaGarcia, EaOba, ESantos, TaMolino, AbSilva, ApPelícia, KPaz, Icla2021-07-14T10:28:44Z2021-07-14T10:28:44Z2018info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article63-70application/pdfhttp://dx.doi.org/10.1590/1806-9061-2017-0560Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 20, n. 01, p. 63-70, 2018.1516-635X1806-9061http://hdl.handle.net/11449/21172610.1590/1806-9061-2017-0560S1516-635X2018000100063S1516-635X2018000100063.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Ciência Avícolainfo:eu-repo/semantics/openAccess2023-11-13T06:09:32Zoai:repositorio.unesp.br:11449/211726Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:32:52.847627Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols |
title |
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols |
spellingShingle |
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols Vieira, Ja Beak treatment infrared radiation poultry production stress welfare. |
title_short |
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols |
title_full |
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols |
title_fullStr |
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols |
title_full_unstemmed |
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols |
title_sort |
Production Indicators and Levels of Corticosterone in Pullets Treated with Beak-Trimming Protocols |
author |
Vieira, Ja |
author_facet |
Vieira, Ja Garcia, Ea Oba, E Santos, Ta Molino, Ab Silva, Ap Pelícia, K Paz, Icla |
author_role |
author |
author2 |
Garcia, Ea Oba, E Santos, Ta Molino, Ab Silva, Ap Pelícia, K Paz, Icla |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) LOHMANN BRAZIL State University of Mato Grosso |
dc.contributor.author.fl_str_mv |
Vieira, Ja Garcia, Ea Oba, E Santos, Ta Molino, Ab Silva, Ap Pelícia, K Paz, Icla |
dc.subject.por.fl_str_mv |
Beak treatment infrared radiation poultry production stress welfare. |
topic |
Beak treatment infrared radiation poultry production stress welfare. |
description |
The aim of this study was to compare the effects of beak trimming by hot blade or infrared radiation on production indicators and plasma levels of corticosterone in pullets. During the rearing phase, an entirely random delineation was used a 2 x 3 factorial design (two different techniques for beak trimming x 3 strains), a total of six treatments with six repetitions of 20 hens. In the growing phase, the previous treatments were divided into 12, with eight repetitions with seven hens. These treatments were then distributed in a factorial design of 2 x 3 x 2 (two methodologies for beak trimming during rearing phase x three strains x with or without beak trimming at ten weeks of age). In the rearing phase the birds treated by infrared radiation had a lower total consumption and a longer beak length. In the growing phase, the execution of beak trimming at ten weeks of age, led to a lower total consumption and a lower body weight, but a better food conversion, when compared to those hens that did not have beak treatment. Beak trimming at ten weeks did not change the plasmatic levels of corticosterone. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018 2021-07-14T10:28:44Z 2021-07-14T10:28:44Z |
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/10.1590/1806-9061-2017-0560 Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 20, n. 01, p. 63-70, 2018. 1516-635X 1806-9061 http://hdl.handle.net/11449/211726 10.1590/1806-9061-2017-0560 S1516-635X2018000100063 S1516-635X2018000100063.pdf |
url |
http://dx.doi.org/10.1590/1806-9061-2017-0560 http://hdl.handle.net/11449/211726 |
identifier_str_mv |
Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 20, n. 01, p. 63-70, 2018. 1516-635X 1806-9061 10.1590/1806-9061-2017-0560 S1516-635X2018000100063 S1516-635X2018000100063.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Ciência Avícola |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
63-70 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_ |
1808128824971362304 |