Publicação
Interrelationships among predictors of lamb carcass composition
| Resumo: | The objective of th is study was to identify a reduced set of variables from an original data set of 18 carcass measurements in order to avoid redundancy, collinearity problems, and to simplify the development of models to predict lambs carcass composition. One hundred and twenty-six lambs, 86 mules and 40 females, of Churra Galega Bragançana Portuguese local breed were slaughtered, and carcasses were weighed (HCW) approximately 30 min after exsanguination. After cooling at 4°C tor 24 ha set of seventeen carcass measurements were recorded, and data interrelationships were analysed following the common factor analysis procedure. All variables were highly and positively correlated with HCW (r > 0.46), being especially high in the carcass dimensions measurements (r > 0.75). Subcutaneous fat thickness measurements were highly and positively correlated (r > 0.58) with breast bone tissues thickness measurements. Three common factors (factor I =carcass weight; factor 11 = subcutaneous fat thickness; factor Ill = breast bone tissues thickness) were retained, and accounted for 83.5% of the variation in the original variables. This study demonstrates that common factors analysis can be used to condense the information given by large sets of variables, allowing selecting a reduced number of variables, which contributes to reduce collinearity problems, and to simplify the development of models to predict lamb carcass composition |
|---|---|
| Autores principais: | Cadavez, Vasco |
| Assunto: | Carcass Lambs Composition Common factors |
| Ano: | 2008 |
| País: | Portugal |
| Tipo de documento: | documento de conferência |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Instituto Politécnico de Bragança |
| Idioma: | inglês |
| Origem: | Biblioteca Digital do IPB |
| _version_ | 1867173344245186560 |
|---|---|
| author | Cadavez, Vasco |
| author_facet | Cadavez, Vasco |
| author_role | author |
| contributor_name_str_mv | Biblioteca Digital do IPB |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Cadavez, Vasco\",\"Person.identifier.orcid\":\"0000-0002-3077-7414\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Biblioteca Digital do IPB |
| datacite.creators.creator.creatorName.fl_str_mv | Cadavez, Vasco |
| datacite.date.Accepted.fl_str_mv | 2008-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2012-09-14T10:51:00Z |
| datacite.date.embargoed.fl_str_mv | 2012-09-14T10:51:00Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Carcass Lambs Composition Common factors |
| datacite.titles.title.fl_str_mv | Interrelationships among predictors of lamb carcass composition |
| dc.contributor.none.fl_str_mv | Biblioteca Digital do IPB |
| dc.creator.none.fl_str_mv | Cadavez, Vasco |
| dc.date.Accepted.fl_str_mv | 2008-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2012-09-14T10:51:00Z |
| dc.date.embargoed.fl_str_mv | 2012-09-14T10:51:00Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10198/7557 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Carcass Lambs Composition Common factors |
| dc.title.fl_str_mv | Interrelationships among predictors of lamb carcass composition |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_c94f |
| description | The objective of th is study was to identify a reduced set of variables from an original data set of 18 carcass measurements in order to avoid redundancy, collinearity problems, and to simplify the development of models to predict lambs carcass composition. One hundred and twenty-six lambs, 86 mules and 40 females, of Churra Galega Bragançana Portuguese local breed were slaughtered, and carcasses were weighed (HCW) approximately 30 min after exsanguination. After cooling at 4°C tor 24 ha set of seventeen carcass measurements were recorded, and data interrelationships were analysed following the common factor analysis procedure. All variables were highly and positively correlated with HCW (r > 0.46), being especially high in the carcass dimensions measurements (r > 0.75). Subcutaneous fat thickness measurements were highly and positively correlated (r > 0.58) with breast bone tissues thickness measurements. Three common factors (factor I =carcass weight; factor 11 = subcutaneous fat thickness; factor Ill = breast bone tissues thickness) were retained, and accounted for 83.5% of the variation in the original variables. This study demonstrates that common factors analysis can be used to condense the information given by large sets of variables, allowing selecting a reduced number of variables, which contributes to reduce collinearity problems, and to simplify the development of models to predict lamb carcass composition |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| fulltext.url.fl_str_mv | https://bibliotecadigital.ipb.pt/bitstreams/f92a780c-97a1-45e8-93d7-3215a0882e9e/download |
| id | ipb_e9d6ec3a062769fcd1e8da66cabc5802 |
| identifier.url.fl_str_mv | http://hdl.handle.net/10198/7557 |
| instacron_str | ipb |
| institution | Instituto Politécnico de Bragança |
| instname_str | Instituto Politécnico de Bragança |
| language | eng |
| network_acronym_str | ipb |
| network_name_str | Biblioteca Digital do IPB |
| oai_identifier_str | oai:bibliotecadigital.ipb.pt:10198/7557 |
| organization_str_mv | urn:organizationAcronym:ipb |
| person_str_mv | Cadavez, Vasco Cadavez, Vasco https://www.ciencia-id.pt/441B-01AB-A12E 441B-01AB-A12E http://orcid.org/0000-0002-3077-7414 0000-0002-3077-7414 |
| publishDate | 2008 |
| reponame_str | Biblioteca Digital do IPB |
| repository_id_str | urn:repositoryAcronym:ipb |
| service_str_mv | urn:repositoryAcronym:ipb |
| spelling | engporThe objective of th is study was to identify a reduced set of variables from an original data set of 18 carcass measurements in order to avoid redundancy, collinearity problems, and to simplify the development of models to predict lambs carcass composition. One hundred and twenty-six lambs, 86 mules and 40 females, of Churra Galega Bragançana Portuguese local breed were slaughtered, and carcasses were weighed (HCW) approximately 30 min after exsanguination. After cooling at 4°C tor 24 ha set of seventeen carcass measurements were recorded, and data interrelationships were analysed following the common factor analysis procedure. All variables were highly and positively correlated with HCW (r > 0.46), being especially high in the carcass dimensions measurements (r > 0.75). Subcutaneous fat thickness measurements were highly and positively correlated (r > 0.58) with breast bone tissues thickness measurements. Three common factors (factor I =carcass weight; factor 11 = subcutaneous fat thickness; factor Ill = breast bone tissues thickness) were retained, and accounted for 83.5% of the variation in the original variables. This study demonstrates that common factors analysis can be used to condense the information given by large sets of variables, allowing selecting a reduced number of variables, which contributes to reduce collinearity problems, and to simplify the development of models to predict lamb carcass compositionapplication/pdfporInterrelationships among predictors of lamb carcass compositionPersonalCadavez, VascoDSpacehttp://dspace.org/items/57b410e9-f6b7-42ff-ab3d-b526278715ebDSpacehttp://dspace.org/items/57b410e9-f6b7-42ff-ab3d-b526278715ebCadavezVascoCiência IDhttps://www.ciencia-id.pt441B-01AB-A12EORCIDhttp://orcid.org0000-0002-3077-7414Researcher IDhttps://www.researcherid.comA-3958-2010Scopus Author IDhttps://www.scopus.com9039121900HostingInstitutionOrganizationalBiblioteca Digital do IPBe-mailmailto:dspace@ipb.ptdspace@ipb.ptISBNIsPartOf978-90-8686-074-6ISSNIsPartOf1382-60772012-09-14T10:51:00Z20082008-01-01T00:00:00ZHandlehttp://hdl.handle.net/10198/7557http://purl.org/coar/access_right/c_abf2open accessCarcassLambsCompositionCommon factors1159912 bytesother research producthttp://purl.org/coar/resource_type/c_c94fconference objecthttp://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://bibliotecadigital.ipb.pt/bitstreams/f92a780c-97a1-45e8-93d7-3215a0882e9e/download59th Annual Meeting of the EAAP14187Vilnius, Lithuania |
| spellingShingle | Interrelationships among predictors of lamb carcass composition Cadavez, Vasco Carcass Lambs Composition Common factors |
| status | SINGLETON |
| subject.fl_str_mv | Carcass Lambs Composition Common factors |
| title | Interrelationships among predictors of lamb carcass composition |
| title_full | Interrelationships among predictors of lamb carcass composition |
| title_fullStr | Interrelationships among predictors of lamb carcass composition |
| title_full_unstemmed | Interrelationships among predictors of lamb carcass composition |
| title_short | Interrelationships among predictors of lamb carcass composition |
| title_sort | Interrelationships among predictors of lamb carcass composition |
| topic | Carcass Lambs Composition Common factors |
| topic_facet | Carcass Lambs Composition Common factors |
| url | http://hdl.handle.net/10198/7557 |
| visible | 1 |