Sexual dimorphism of Labrador Retriever dogs by morphometry
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/26496 |
Resumo: | The domestic dog (Canis familiaris) is the species of greatest morphological diversity among mammals. Seventy-four Labrador Retriever dogs- 27 males and 47 females - were used in this experiment. Thirty quantitative biometric characteristics, related to morphology were measured. The objective of this study was to evaluate the morphometric traits of the Labrador Retriever breed to establish descriptive biometric attributes that may show sexual dimorphism through principal component analysis (PCA) and discriminant analysis (DA). The PCA was processed using all the variables and performing a pre-selection of the most correlated variables. The DA was performed for the 30 variables and also for the five most correlated variables with the first component (CP1), in order to classify new individuals. The PCA was able to identify sexual dimorphism in size, with both the 30 original variables as with the pre- selected variables, the latter optimized the reduction to two principal components. The DA was able to discriminate the two populations, both for 30 variables as for the five variables most correlated with the CP1. The functions with five variables can be used to classify other purebred dogs for sex, with an error of about 6.75%. |
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Sexual dimorphism of Labrador Retriever dogs by morphometrySexual dimorphism of labrador retriever dogs by morphometry principal component analysisCanis familiarismorphologyAgricultural SciencesThe domestic dog (Canis familiaris) is the species of greatest morphological diversity among mammals. Seventy-four Labrador Retriever dogs- 27 males and 47 females - were used in this experiment. Thirty quantitative biometric characteristics, related to morphology were measured. The objective of this study was to evaluate the morphometric traits of the Labrador Retriever breed to establish descriptive biometric attributes that may show sexual dimorphism through principal component analysis (PCA) and discriminant analysis (DA). The PCA was processed using all the variables and performing a pre-selection of the most correlated variables. The DA was performed for the 30 variables and also for the five most correlated variables with the first component (CP1), in order to classify new individuals. The PCA was able to identify sexual dimorphism in size, with both the 30 original variables as with the pre- selected variables, the latter optimized the reduction to two principal components. The DA was able to discriminate the two populations, both for 30 variables as for the five variables most correlated with the CP1. The functions with five variables can be used to classify other purebred dogs for sex, with an error of about 6.75%.: The domestic dog (Canis familiaris) is the species of greatest morphological diversity among mammals. Seventy-four Labrador Retriever dogs- 27 males and 47 females - were used in this experiment. Thirty quantitative biometric characteristics, related to morphology were measured. The objective of this study was to evaluate the morphometric traits of the Labrador Retriever breed to establish descriptive biometric attributes that may show sexual dimorphism through principal component analysis (PCA) and discriminant analysis (DA). The PCA was processed using all the variables and performing a pre-selection of the most correlated variables. The DA was performed for the 30 variables and also for the five most correlated variables with the first component (CP1), in order to classify new individuals. The PCA was able to identify sexual dimorphism in size, with both the 30 original variables as with the pre- selected variables, the latter optimized the reduction to two principal components. The DA was able to discriminate the two populations, both for 30 variables as for the five variables most correlated with the CP1. The functions with five variables can be used to classify other purebred dogs for sex, with an error of about 6.75%.EDUFU2015-09-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/2649610.14393/BJ-v31n5a2015-26496Bioscience Journal ; Vol. 31 No. 5 (2015): Sept./Oct.; 1475-1487Bioscience Journal ; v. 31 n. 5 (2015): Sept./Oct.; 1475-14871981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/26496/17137Brazil; ContemporaryCopyright (c) 2015 Murilo Antonio Oliveira Thuller, Marcelo Jangarelli, Douglas Mena do Couto, Alexandre Herculano Borges Araújohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessThuller, Murilo Antonio OliveiraJangarelli, MarceloCouto, Douglas Mena doAraújo, Alexandre Herculano Borges2022-05-19T14:21:04Zoai:ojs.www.seer.ufu.br:article/26496Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2022-05-19T14:21:04Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Sexual dimorphism of Labrador Retriever dogs by morphometry Sexual dimorphism of labrador retriever dogs by morphometry |
title |
Sexual dimorphism of Labrador Retriever dogs by morphometry |
spellingShingle |
Sexual dimorphism of Labrador Retriever dogs by morphometry Thuller, Murilo Antonio Oliveira principal component analysis Canis familiaris morphology Agricultural Sciences |
title_short |
Sexual dimorphism of Labrador Retriever dogs by morphometry |
title_full |
Sexual dimorphism of Labrador Retriever dogs by morphometry |
title_fullStr |
Sexual dimorphism of Labrador Retriever dogs by morphometry |
title_full_unstemmed |
Sexual dimorphism of Labrador Retriever dogs by morphometry |
title_sort |
Sexual dimorphism of Labrador Retriever dogs by morphometry |
author |
Thuller, Murilo Antonio Oliveira |
author_facet |
Thuller, Murilo Antonio Oliveira Jangarelli, Marcelo Couto, Douglas Mena do Araújo, Alexandre Herculano Borges |
author_role |
author |
author2 |
Jangarelli, Marcelo Couto, Douglas Mena do Araújo, Alexandre Herculano Borges |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Thuller, Murilo Antonio Oliveira Jangarelli, Marcelo Couto, Douglas Mena do Araújo, Alexandre Herculano Borges |
dc.subject.por.fl_str_mv |
principal component analysis Canis familiaris morphology Agricultural Sciences |
topic |
principal component analysis Canis familiaris morphology Agricultural Sciences |
description |
The domestic dog (Canis familiaris) is the species of greatest morphological diversity among mammals. Seventy-four Labrador Retriever dogs- 27 males and 47 females - were used in this experiment. Thirty quantitative biometric characteristics, related to morphology were measured. The objective of this study was to evaluate the morphometric traits of the Labrador Retriever breed to establish descriptive biometric attributes that may show sexual dimorphism through principal component analysis (PCA) and discriminant analysis (DA). The PCA was processed using all the variables and performing a pre-selection of the most correlated variables. The DA was performed for the 30 variables and also for the five most correlated variables with the first component (CP1), in order to classify new individuals. The PCA was able to identify sexual dimorphism in size, with both the 30 original variables as with the pre- selected variables, the latter optimized the reduction to two principal components. The DA was able to discriminate the two populations, both for 30 variables as for the five variables most correlated with the CP1. The functions with five variables can be used to classify other purebred dogs for sex, with an error of about 6.75%. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-10 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/26496 10.14393/BJ-v31n5a2015-26496 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/26496 |
identifier_str_mv |
10.14393/BJ-v31n5a2015-26496 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/26496/17137 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
EDUFU |
publisher.none.fl_str_mv |
EDUFU |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 31 No. 5 (2015): Sept./Oct.; 1475-1487 Bioscience Journal ; v. 31 n. 5 (2015): Sept./Oct.; 1475-1487 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069075329843200 |