Morphological asymmetry and broiler welfare

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dc.contributor.authorNääs, I A
dc.contributor.authorSonoda, L T
dc.contributor.authorRomanini, C E B
dc.contributor.authorMorello, G M
dc.contributor.authorNeves, H A F
dc.contributor.authorBaracho, M S
dc.contributor.authorSouza, S R L S
dc.contributor.authorMenezes, A G
dc.contributor.authorMollo Neto, M
dc.contributor.authorMoura, D J
dc.contributor.authorPaz, Ibiara Correia de Lima Almeida [UNESP]
dc.contributor.institutionUniversidade Estadual de Campinas (UNICAMP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade Estadual de Londrina (UEL)
dc.date.accessioned2013-09-30T19:25:32Z
dc.date.accessioned2014-05-20T13:41:05Z
dc.date.available2013-09-30T19:25:32Z
dc.date.available2014-05-20T13:41:05Z
dc.date.issued2008-12-01
dc.description.abstractHealth 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.en
dc.description.affiliationState University of Campinas Agricultural Engineering School
dc.description.affiliationUNICAMP Center for Technology Research Group on Biosystems Technology
dc.description.affiliationUNESP School of Veterinary Medicine and Animal Science
dc.description.affiliationState University of Londrina School of Veterinary and Animal Science
dc.description.affiliationUnespUNESP School of Veterinary Medicine and Animal Science
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent209-213
dc.identifierhttp://dx.doi.org/10.1590/S1516-635X2008000400003
dc.identifier.citationRevista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 10, n. 4, p. 209-213, 2008.
dc.identifier.doi10.1590/S1516-635X2008000400003
dc.identifier.fileS1516-635X2008000400003.pdf
dc.identifier.issn1516-635X
dc.identifier.orcid0000-0002-8341-4190
dc.identifier.scieloS1516-635X2008000400003
dc.identifier.urihttp://hdl.handle.net/11449/14243
dc.identifier.wosWOS:000265513600003
dc.language.isoeng
dc.publisherFundação APINCO de Ciência e Tecnologia Avícolas
dc.relation.ispartofRevista Brasileira de Ciência Avícola
dc.relation.ispartofjcr0.463
dc.rights.accessRightsAcesso aberto
dc.sourceSciELO
dc.subjectAnimal welfare assessmenten
dc.subjectbroiler feet forceen
dc.subjectbroiler leg abnormalitiesen
dc.subjectwelfare indicatoren
dc.titleMorphological asymmetry and broiler welfareen
dc.typeArtigo
dcterms.licensehttp://www.scielo.br/revistas/rbca/paboutj.htm
unesp.author.orcid0000-0002-8341-4190[9]
unesp.author.orcid0000-0001-9000-9049[3]
unesp.author.orcid0000-0002-5439-969X[4]
unesp.author.orcid0000-0003-0663-9377[1]
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Medicina Veterinária e Zootecnia, Botucatupt

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