Identification of informative performance traits in swine using principal component analysis

Detalhes bibliográficos
Autor(a) principal: Barbosa,L.
Data de Publicação: 2005
Outros Autores: Lopes,P.S., Regazzi,A.J., Guimarães,S.E.F., Torres,R.A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Arquivo brasileiro de medicina veterinária e zootecnia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600016
Resumo: Using principal component analysis, records of 435 animals from an F2 swine population were used to identity independent and informative variables of economically important performance. The following performance traits were recorded: litter size at birth (BL), litter size at weaning (WL), teat number (TN), birth weight (BW), weight at 21 (W21), 42 (W42), 63 (W63) and 77 (W77) days of age, average daily gain (ADG), feed intake (FI) and feed:gain ratio (FGR) from 77 to 105 days of age. Six principal components expressed variation lower than 0.7 (eigen values lower than 0.7) suggesting that six variables could be discarded with little information loss. The discarded variables present significant simple linear correlation with the retained variables. Retaining variables BL, TN, W77, FI and FGR and eliminating all the rest would retain most of the relevant information in the original data set.
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spelling Identification of informative performance traits in swine using principal component analysisswinemultivariate analysiscorrelationdiscardgrowthlitter sizeperformanceUsing principal component analysis, records of 435 animals from an F2 swine population were used to identity independent and informative variables of economically important performance. The following performance traits were recorded: litter size at birth (BL), litter size at weaning (WL), teat number (TN), birth weight (BW), weight at 21 (W21), 42 (W42), 63 (W63) and 77 (W77) days of age, average daily gain (ADG), feed intake (FI) and feed:gain ratio (FGR) from 77 to 105 days of age. Six principal components expressed variation lower than 0.7 (eigen values lower than 0.7) suggesting that six variables could be discarded with little information loss. The discarded variables present significant simple linear correlation with the retained variables. Retaining variables BL, TN, W77, FI and FGR and eliminating all the rest would retain most of the relevant information in the original data set.Universidade Federal de Minas Gerais, Escola de Veterinária2005-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600016Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.57 n.6 2005reponame:Arquivo brasileiro de medicina veterinária e zootecnia (Online)instname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMG10.1590/S0102-09352005000600016info:eu-repo/semantics/openAccessBarbosa,L.Lopes,P.S.Regazzi,A.J.Guimarães,S.E.F.Torres,R.A.eng2006-04-18T00:00:00Zoai:scielo:S0102-09352005000600016Revistahttps://www.scielo.br/j/abmvz/PUBhttps://old.scielo.br/oai/scielo-oai.phpjournal@vet.ufmg.br||abmvz.artigo@abmvz.org.br1678-41620102-0935opendoar:2006-04-18T00:00Arquivo brasileiro de medicina veterinária e zootecnia (Online) - Universidade Federal de Minas Gerais (UFMG)false
dc.title.none.fl_str_mv Identification of informative performance traits in swine using principal component analysis
title Identification of informative performance traits in swine using principal component analysis
spellingShingle Identification of informative performance traits in swine using principal component analysis
Barbosa,L.
swine
multivariate analysis
correlation
discard
growth
litter size
performance
title_short Identification of informative performance traits in swine using principal component analysis
title_full Identification of informative performance traits in swine using principal component analysis
title_fullStr Identification of informative performance traits in swine using principal component analysis
title_full_unstemmed Identification of informative performance traits in swine using principal component analysis
title_sort Identification of informative performance traits in swine using principal component analysis
author Barbosa,L.
author_facet Barbosa,L.
Lopes,P.S.
Regazzi,A.J.
Guimarães,S.E.F.
Torres,R.A.
author_role author
author2 Lopes,P.S.
Regazzi,A.J.
Guimarães,S.E.F.
Torres,R.A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Barbosa,L.
Lopes,P.S.
Regazzi,A.J.
Guimarães,S.E.F.
Torres,R.A.
dc.subject.por.fl_str_mv swine
multivariate analysis
correlation
discard
growth
litter size
performance
topic swine
multivariate analysis
correlation
discard
growth
litter size
performance
description Using principal component analysis, records of 435 animals from an F2 swine population were used to identity independent and informative variables of economically important performance. The following performance traits were recorded: litter size at birth (BL), litter size at weaning (WL), teat number (TN), birth weight (BW), weight at 21 (W21), 42 (W42), 63 (W63) and 77 (W77) days of age, average daily gain (ADG), feed intake (FI) and feed:gain ratio (FGR) from 77 to 105 days of age. Six principal components expressed variation lower than 0.7 (eigen values lower than 0.7) suggesting that six variables could be discarded with little information loss. The discarded variables present significant simple linear correlation with the retained variables. Retaining variables BL, TN, W77, FI and FGR and eliminating all the rest would retain most of the relevant information in the original data set.
publishDate 2005
dc.date.none.fl_str_mv 2005-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600016
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352005000600016
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0102-09352005000600016
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal de Minas Gerais, Escola de Veterinária
publisher.none.fl_str_mv Universidade Federal de Minas Gerais, Escola de Veterinária
dc.source.none.fl_str_mv Arquivo Brasileiro de Medicina Veterinária e Zootecnia v.57 n.6 2005
reponame:Arquivo brasileiro de medicina veterinária e zootecnia (Online)
instname:Universidade Federal de Minas Gerais (UFMG)
instacron:UFMG
instname_str Universidade Federal de Minas Gerais (UFMG)
instacron_str UFMG
institution UFMG
reponame_str Arquivo brasileiro de medicina veterinária e zootecnia (Online)
collection Arquivo brasileiro de medicina veterinária e zootecnia (Online)
repository.name.fl_str_mv Arquivo brasileiro de medicina veterinária e zootecnia (Online) - Universidade Federal de Minas Gerais (UFMG)
repository.mail.fl_str_mv journal@vet.ufmg.br||abmvz.artigo@abmvz.org.br
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