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Interrelationships between carcass weight, dimensions and tissues thickness measurements on Churro Galego Bragançano and Suffolk Lambs

2021Journal article Open access
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dc.contributor.authorCadavez, Vasco
dc.date.accessioned2023-07-20T10:04:42Z
dc.date.available2023-07-20T10:04:42Z
dc.date.issued2021
dc.description.abstractThe goal of this study was to identify a reduced pertinent set of variables from an original data set of 18 carcass measurements in order to avoid redundancy and collinearity problems or to simplify data analysis and the development of the linear regression models. Forty-six (46) male lambs, 26 of Churro Galego Bragançano Portuguese local breed and 20 of Suffolk breed were used. Lambs were slaughtered and carcasses weighed approximately 30 min after in order to obtain hot carcass weight (HCW). After cooling at 4žC for 24 h a set of seventeen carcass and measurements were recorded. The data interrelationships common factor analysed following the common factor analysis procedure. Carcass width and perimeter measurements showed high and positive correlations with HCW (from 0.74 to 0.91) and between themselves (from 0.55 to 0.80). However, HCW was lowly correlated with leg length (0.17) and moderately correlated with measurements that characterise carcass lengths and perimeters (from -0.39 to 0.56). Subcutaneous fat thickness measurements made at different anatomical positions were lowly correlated with HCW (lower than 0.20), even though high correlations were observed among the fat thickness measures (higher than 0.67). Four common factors were retained and identified: carcass weight (factor I), breast bone tissue thickness (factor II), subcutaneous fat thickness (factor III) and conformation (factor IV), which account for 81.9% of the variation on the eighteen original variables. This study shows that common factors analysis can be used to condense the information given by large sets of variables, by selecting a reduced number of variables, which avoids collinearity problems and simplifies the development of carcass composition estimation models.pt_PT
dc.description.sponsorshipThe author is grateful to the Foundation for Science and Technology (FCT, Portugal) and FEDER under Program PT2020 for financial (UID/AGR/00690/2019).pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationCadavez, Vasco (2021). Interrelationships between carcass weight, dimensions and tissues thickness measurements on Churro Galego Bragançano and Suffolk Lambs. Revista Portuguesa de Zootecnia. ISSN 2182-4975. 6:1, p. 1-12pt_PT
dc.identifier.issn2182-4975
dc.identifier.urihttp://hdl.handle.net/10198/28572
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherAssociação Portuguesa de Engenharia Zootécnicapt_PT
dc.relationMountain Research Centre
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectLambspt_PT
dc.subjectCarcasspt_PT
dc.subjectTissuept_PT
dc.subjectMeasurementspt_PT
dc.subjectCommon Factorspt_PT
dc.subjectResearch Subject Categories::VETERINARY MEDICINE::Animal hygienept_PT
dc.titleInterrelationships between carcass weight, dimensions and tissues thickness measurements on Churro Galego Bragançano and Suffolk Lambspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleMountain Research Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FAGR%2F00690%2F2019/PT
oaire.citation.endPage12pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage1pt_PT
oaire.citation.titleRevista Portuguesa de Zootecniapt_PT
oaire.citation.volume6pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameCadavez
person.givenNameVasco
person.identifierR-000-HDG
person.identifier.ciencia-id441B-01AB-A12E
person.identifier.orcid0000-0002-3077-7414
person.identifier.ridA-3958-2010
person.identifier.scopus-author-id9039121900
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication57b410e9-f6b7-42ff-ab3d-b526278715eb
relation.isAuthorOfPublication.latestForDiscovery57b410e9-f6b7-42ff-ab3d-b526278715eb
relation.isProjectOfPublicationd6683ba1-d253-48e4-968e-35106ce7b750
relation.isProjectOfPublication.latestForDiscoveryd6683ba1-d253-48e4-968e-35106ce7b750

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