Morphological asymmetry and broiler welfare

Detalhes bibliográficos
Autor(a) principal: Nääs, I A
Data de Publicação: 2008
Outros Autores: 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]
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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spelling 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
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