Performance of commercial laying hen submitted to different debeaking methods
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1806-9061-2017-0537 http://hdl.handle.net/11449/179470 |
Resumo: | Among the several factors required in breeding laying hens, debeaking is a factor that interferes with batch performance and affects animal welfare. Thus, the objective of this study was to evaluate three different debeaking procedures and to verify the best technique to be used. For this, the performance of the birds, the incidence of cannibalism, and in rearing phase, the quality of the eggs were evaluated. Dekalb White birds were distributed in a completely randomized design with three treatments, T1 (infrared radiation debeaking) T2 (hot blade debeaking) and T3 (V debeaking).The data was submitted to Analysis of Variance and compared by Tukey’s test (95%), using statistical software R. The frequencies of mortality and cannibalism were submitted to the Chi-Square test (Software R). It was observed that mortality was lower with IR debeaking in the breeding phase. Already in the rearing phase, the mortality was similar between the debeaking techniques and the cannibalism was null. The final mean weight (g), mean weight gain (g) and average daily weight gain in the rearing and egg quality variables were higher for V debeaking when compared to other techniques. It is concluded that V-debeaking provides better bird performance, resistance and shell thickness when compared to the infrared radiations and hot blade debeaking, in addition to subjecting the birds to less stress. |
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spelling |
Performance of commercial laying hen submitted to different debeaking methodsAnimal welfareBehaviorEgg qualityStressAmong the several factors required in breeding laying hens, debeaking is a factor that interferes with batch performance and affects animal welfare. Thus, the objective of this study was to evaluate three different debeaking procedures and to verify the best technique to be used. For this, the performance of the birds, the incidence of cannibalism, and in rearing phase, the quality of the eggs were evaluated. Dekalb White birds were distributed in a completely randomized design with three treatments, T1 (infrared radiation debeaking) T2 (hot blade debeaking) and T3 (V debeaking).The data was submitted to Analysis of Variance and compared by Tukey’s test (95%), using statistical software R. The frequencies of mortality and cannibalism were submitted to the Chi-Square test (Software R). It was observed that mortality was lower with IR debeaking in the breeding phase. Already in the rearing phase, the mortality was similar between the debeaking techniques and the cannibalism was null. The final mean weight (g), mean weight gain (g) and average daily weight gain in the rearing and egg quality variables were higher for V debeaking when compared to other techniques. It is concluded that V-debeaking provides better bird performance, resistance and shell thickness when compared to the infrared radiations and hot blade debeaking, in addition to subjecting the birds to less stress.São Paulo State University “Júlio de Mesquita Filho” FCAT UnespSão Paulo State University “Júlio de Mesquita Filho” FCA UnespSão Paulo State University “Júlio de Mesquita Filho” FMVZ UnespHendrix Genetics LtdaSão Paulo State University “Júlio de Mesquita Filho” FCAT UnespSão Paulo State University “Júlio de Mesquita Filho” FCA UnespSão Paulo State University “Júlio de Mesquita Filho” FMVZ UnespUniversidade Estadual Paulista (Unesp)Hendrix Genetics LtdaOka, C. H. [UNESP]Bueno, Leda Gobbo de Freitas [UNESP]Souza, S. R.L. [UNESP]Balan, J. A.O. [UNESP]Silva, K. M. [UNESP]Polycarpo, G. V. [UNESP]Iwayama, L. H.2018-12-11T17:35:19Z2018-12-11T17:35:19Z2017-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article717-724application/pdfhttp://dx.doi.org/10.1590/1806-9061-2017-0537Revista Brasileira de Ciencia Avicola, v. 19, n. 4, p. 717-724, 2017.1516-635Xhttp://hdl.handle.net/11449/17947010.1590/1806-9061-2017-0537S1516-635X20170004007172-s2.0-85039698291S1516-635X2017000400717.pdf4017767689069749Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Ciencia Avicolainfo:eu-repo/semantics/openAccess2023-10-02T06:07:49Zoai:repositorio.unesp.br:11449/179470Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-10-02T06:07:49Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Performance of commercial laying hen submitted to different debeaking methods |
title |
Performance of commercial laying hen submitted to different debeaking methods |
spellingShingle |
Performance of commercial laying hen submitted to different debeaking methods Oka, C. H. [UNESP] Animal welfare Behavior Egg quality Stress |
title_short |
Performance of commercial laying hen submitted to different debeaking methods |
title_full |
Performance of commercial laying hen submitted to different debeaking methods |
title_fullStr |
Performance of commercial laying hen submitted to different debeaking methods |
title_full_unstemmed |
Performance of commercial laying hen submitted to different debeaking methods |
title_sort |
Performance of commercial laying hen submitted to different debeaking methods |
author |
Oka, C. H. [UNESP] |
author_facet |
Oka, C. H. [UNESP] Bueno, Leda Gobbo de Freitas [UNESP] Souza, S. R.L. [UNESP] Balan, J. A.O. [UNESP] Silva, K. M. [UNESP] Polycarpo, G. V. [UNESP] Iwayama, L. H. |
author_role |
author |
author2 |
Bueno, Leda Gobbo de Freitas [UNESP] Souza, S. R.L. [UNESP] Balan, J. A.O. [UNESP] Silva, K. M. [UNESP] Polycarpo, G. V. [UNESP] Iwayama, L. H. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Hendrix Genetics Ltda |
dc.contributor.author.fl_str_mv |
Oka, C. H. [UNESP] Bueno, Leda Gobbo de Freitas [UNESP] Souza, S. R.L. [UNESP] Balan, J. A.O. [UNESP] Silva, K. M. [UNESP] Polycarpo, G. V. [UNESP] Iwayama, L. H. |
dc.subject.por.fl_str_mv |
Animal welfare Behavior Egg quality Stress |
topic |
Animal welfare Behavior Egg quality Stress |
description |
Among the several factors required in breeding laying hens, debeaking is a factor that interferes with batch performance and affects animal welfare. Thus, the objective of this study was to evaluate three different debeaking procedures and to verify the best technique to be used. For this, the performance of the birds, the incidence of cannibalism, and in rearing phase, the quality of the eggs were evaluated. Dekalb White birds were distributed in a completely randomized design with three treatments, T1 (infrared radiation debeaking) T2 (hot blade debeaking) and T3 (V debeaking).The data was submitted to Analysis of Variance and compared by Tukey’s test (95%), using statistical software R. The frequencies of mortality and cannibalism were submitted to the Chi-Square test (Software R). It was observed that mortality was lower with IR debeaking in the breeding phase. Already in the rearing phase, the mortality was similar between the debeaking techniques and the cannibalism was null. The final mean weight (g), mean weight gain (g) and average daily weight gain in the rearing and egg quality variables were higher for V debeaking when compared to other techniques. It is concluded that V-debeaking provides better bird performance, resistance and shell thickness when compared to the infrared radiations and hot blade debeaking, in addition to subjecting the birds to less stress. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-10-01 2018-12-11T17:35:19Z 2018-12-11T17:35:19Z |
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/10.1590/1806-9061-2017-0537 Revista Brasileira de Ciencia Avicola, v. 19, n. 4, p. 717-724, 2017. 1516-635X http://hdl.handle.net/11449/179470 10.1590/1806-9061-2017-0537 S1516-635X2017000400717 2-s2.0-85039698291 S1516-635X2017000400717.pdf 4017767689069749 |
url |
http://dx.doi.org/10.1590/1806-9061-2017-0537 http://hdl.handle.net/11449/179470 |
identifier_str_mv |
Revista Brasileira de Ciencia Avicola, v. 19, n. 4, p. 717-724, 2017. 1516-635X 10.1590/1806-9061-2017-0537 S1516-635X2017000400717 2-s2.0-85039698291 S1516-635X2017000400717.pdf 4017767689069749 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Ciencia Avicola |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
717-724 application/pdf |
dc.source.none.fl_str_mv |
Scopus 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_ |
1792961443258171392 |