Morphological asymmetry and broiler welfare
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1516-635X2008000400003 http://hdl.handle.net/11449/14243 |
Resumo: | Health status, feed conversion ratio, and mortality are long known broiler chicken production indicators. However, further parameters are required by today's demanding meat markets, as these indicators are not sufficiently accurate to determine flock overall welfare. Morphological asymmetry has been pointed as an alternative welfare indicator as it reflects the ability of the bird to cope with the challenges that rearing conditions may impose. This study aimed at evaluating the possibility of using morphological asymmetry as a welfare indicator. Broilers from 28 to 42 days of age were used in the trial. Birds were randomly selected in a commercial poultry farm and transported to the laboratory. They walked over the force measurement platform in order to determined their feet force as a percentage of body weight. The following body parts of the live birds were measured by two different operators using a digital caliper: tarsometatarsus length, outertoe length, midtoe length, and backtoe length. In the corresponding carcasses, the following traits were measured: wattle width, eye length, and first secondary feather length. Data were submitted to statistical analyses and no correlation was found between specific feet trait measurements and walking ability. Considering the time budget involved in measuring morphological asymmetry, this procedure did not appear to be a practically feasible welfare indicator. |
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Morphological asymmetry and broiler welfareAnimal welfare assessmentbroiler feet forcebroiler leg abnormalitieswelfare indicatorHealth status, feed conversion ratio, and mortality are long known broiler chicken production indicators. However, further parameters are required by today's demanding meat markets, as these indicators are not sufficiently accurate to determine flock overall welfare. Morphological asymmetry has been pointed as an alternative welfare indicator as it reflects the ability of the bird to cope with the challenges that rearing conditions may impose. This study aimed at evaluating the possibility of using morphological asymmetry as a welfare indicator. Broilers from 28 to 42 days of age were used in the trial. Birds were randomly selected in a commercial poultry farm and transported to the laboratory. They walked over the force measurement platform in order to determined their feet force as a percentage of body weight. The following body parts of the live birds were measured by two different operators using a digital caliper: tarsometatarsus length, outertoe length, midtoe length, and backtoe length. In the corresponding carcasses, the following traits were measured: wattle width, eye length, and first secondary feather length. Data were submitted to statistical analyses and no correlation was found between specific feet trait measurements and walking ability. Considering the time budget involved in measuring morphological asymmetry, this procedure did not appear to be a practically feasible welfare indicator.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)State University of Campinas Agricultural Engineering SchoolUNICAMP Center for Technology Research Group on Biosystems TechnologyUNESP School of Veterinary Medicine and Animal ScienceState University of Londrina School of Veterinary and Animal ScienceUNESP School of Veterinary Medicine and Animal ScienceFundação APINCO de Ciência e Tecnologia AvícolasUniversidade Estadual de Campinas (UNICAMP)Universidade Estadual Paulista (Unesp)Universidade Estadual de Londrina (UEL)Nääs, I ASonoda, L TRomanini, C E BMorello, G MNeves, H A FBaracho, M SSouza, S R L SMenezes, A GMollo Neto, MMoura, D JPaz, Ibiara Correia de Lima Almeida [UNESP]2013-09-30T19:25:32Z2014-05-20T13:41:05Z2013-09-30T19:25:32Z2014-05-20T13:41:05Z2008-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article209-213application/pdfhttp://dx.doi.org/10.1590/S1516-635X2008000400003Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 10, n. 4, p. 209-213, 2008.1516-635Xhttp://hdl.handle.net/11449/1424310.1590/S1516-635X2008000400003S1516-635X2008000400003WOS:000265513600003S1516-635X2008000400003.pdf0000-0002-8341-4190SciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Ciência Avícola0.463info:eu-repo/semantics/openAccess2024-09-09T13:00:56Zoai:repositorio.unesp.br:11449/14243Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-09T13:00:56Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Morphological asymmetry and broiler welfare |
title |
Morphological asymmetry and broiler welfare |
spellingShingle |
Morphological asymmetry and broiler welfare Nääs, I A Animal welfare assessment broiler feet force broiler leg abnormalities welfare indicator |
title_short |
Morphological asymmetry and broiler welfare |
title_full |
Morphological asymmetry and broiler welfare |
title_fullStr |
Morphological asymmetry and broiler welfare |
title_full_unstemmed |
Morphological asymmetry and broiler welfare |
title_sort |
Morphological asymmetry and broiler welfare |
author |
Nääs, I A |
author_facet |
Nääs, I A Sonoda, L T Romanini, C E B Morello, G M Neves, H A F Baracho, M S Souza, S R L S Menezes, A G Mollo Neto, M Moura, D J Paz, Ibiara Correia de Lima Almeida [UNESP] |
author_role |
author |
author2 |
Sonoda, L T Romanini, C E B Morello, G M Neves, H A F Baracho, M S Souza, S R L S Menezes, A G Mollo Neto, M Moura, D J Paz, Ibiara Correia de Lima Almeida [UNESP] |
author2_role |
author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual de Campinas (UNICAMP) Universidade Estadual Paulista (Unesp) Universidade Estadual de Londrina (UEL) |
dc.contributor.author.fl_str_mv |
Nääs, I A Sonoda, L T Romanini, C E B Morello, G M Neves, H A F Baracho, M S Souza, S R L S Menezes, A G Mollo Neto, M Moura, D J Paz, Ibiara Correia de Lima Almeida [UNESP] |
dc.subject.por.fl_str_mv |
Animal welfare assessment broiler feet force broiler leg abnormalities welfare indicator |
topic |
Animal welfare assessment broiler feet force broiler leg abnormalities welfare indicator |
description |
Health status, feed conversion ratio, and mortality are long known broiler chicken production indicators. However, further parameters are required by today's demanding meat markets, as these indicators are not sufficiently accurate to determine flock overall welfare. Morphological asymmetry has been pointed as an alternative welfare indicator as it reflects the ability of the bird to cope with the challenges that rearing conditions may impose. This study aimed at evaluating the possibility of using morphological asymmetry as a welfare indicator. Broilers from 28 to 42 days of age were used in the trial. Birds were randomly selected in a commercial poultry farm and transported to the laboratory. They walked over the force measurement platform in order to determined their feet force as a percentage of body weight. The following body parts of the live birds were measured by two different operators using a digital caliper: tarsometatarsus length, outertoe length, midtoe length, and backtoe length. In the corresponding carcasses, the following traits were measured: wattle width, eye length, and first secondary feather length. Data were submitted to statistical analyses and no correlation was found between specific feet trait measurements and walking ability. Considering the time budget involved in measuring morphological asymmetry, this procedure did not appear to be a practically feasible welfare indicator. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-12-01 2013-09-30T19:25:32Z 2013-09-30T19:25:32Z 2014-05-20T13:41:05Z 2014-05-20T13:41:05Z |
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/S1516-635X2008000400003 Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 10, n. 4, p. 209-213, 2008. 1516-635X http://hdl.handle.net/11449/14243 10.1590/S1516-635X2008000400003 S1516-635X2008000400003 WOS:000265513600003 S1516-635X2008000400003.pdf 0000-0002-8341-4190 |
url |
http://dx.doi.org/10.1590/S1516-635X2008000400003 http://hdl.handle.net/11449/14243 |
identifier_str_mv |
Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 10, n. 4, p. 209-213, 2008. 1516-635X 10.1590/S1516-635X2008000400003 S1516-635X2008000400003 WOS:000265513600003 S1516-635X2008000400003.pdf 0000-0002-8341-4190 |
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 |
209-213 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 |
repositoriounesp@unesp.br |
_version_ |
1813546572977274880 |