Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection

Detalhes bibliográficos
Autor(a) principal: Silva, Bruno Corrêa
Data de Publicação: 2018
Outros Autores: Marchiori, Natália da Costa, Silva, Fabiano Muller
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/213
Resumo: This study aimed to evaluate the effect of individual selection for body weight on morphometric characteristics of the Nile tilapia, Gift-Epagri strain, and as well as to determine the phenotypic correlations of these measurements. We used 325 males and 272 females derived from seven different populations of the breeding program. The following morphometric characteristics were measured: body weight (BW), total length (TL), standard length (SL), corrected length (CL), head length (HL), body height (BH) and body width (BW). Thereafter, the data were used to determine the following ratios: Fulton condition factor (FC), HL/SL, BH/SL, BW/SL and CL/SL. Fish selected for body weight showed greater FC and BH/SL compared to unselected fish. In addition, all correlations between variables were high (above 0.70), indicating that the selection of individuals with higher body weight may provide indirect gains in other desirable characteristics.
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spelling Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selectionMedidas morfométricas e correlações fenotípicas de tilápia Gift submetidas a seleção individualOreochromis niloticusindividual selectonmorphological parametersphenotypic correlatonsOreochromis niloticusseleção individualparâmetros morfológicoscorrelações fenotípicas.This study aimed to evaluate the effect of individual selection for body weight on morphometric characteristics of the Nile tilapia, Gift-Epagri strain, and as well as to determine the phenotypic correlations of these measurements. We used 325 males and 272 females derived from seven different populations of the breeding program. The following morphometric characteristics were measured: body weight (BW), total length (TL), standard length (SL), corrected length (CL), head length (HL), body height (BH) and body width (BW). Thereafter, the data were used to determine the following ratios: Fulton condition factor (FC), HL/SL, BH/SL, BW/SL and CL/SL. Fish selected for body weight showed greater FC and BH/SL compared to unselected fish. In addition, all correlations between variables were high (above 0.70), indicating that the selection of individuals with higher body weight may provide indirect gains in other desirable characteristics.O objetivo deste estudo foi avaliar o efeito da seleção individual para peso corporal nas medidas morfométricas de tilápia-do-nilo, linhagem GIFT-Epagri, e determinar as correlações destas medidas com o peso do corpo. Foram utilizados 325 machos e 272 fêmeas, derivados de sete diferentes populações do programa de melhoramento. De cada indivíduo foram avaliados os seguintes parâmetros: peso corporal (PC), comprimento total (CT), comprimento padrão (CP), comprimento do tronco (CTr), comprimento da cabeça (CC), altura corporal (AC) e largura corporal (LC). Posteriormente, foram determinadas as seguintes relações: fator de condição de Fulton (FC), CC/CP, AC/CP, LC/CP e CTr/CP. Os indivíduos selecionados para peso corporal das diferentes populações apresentaram maior FC e AC/CP, em relação aos indivíduos não selecionados. Além disso, todas as correlações entre as variáveis analisadas foram altas (acima de 0,70), indicando que na seleção dos indivíduos com maior peso há boa possibilidade de haver ganhos indiretos para outras características desejáveis. Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2018-10-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/213Agropecuária Catarinense Journal; Vol. 31 No. 3 (2018); 38-40Agropecuária Catarinense; v. 31 n. 3 (2018); 38-402525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIenghttps://publicacoes.epagri.sc.gov.br/rac/article/view/213/251Copyright (c) 2018 Revista Agropecuária Catarinensehttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessSilva, Bruno CorrêaMarchiori, Natália da CostaSilva, Fabiano Muller2018-10-24T17:34:03Zoai:ojs.publicacoes.epagri.sc.gov.br:article/213Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2018-10-24T17:34:03Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection
Medidas morfométricas e correlações fenotípicas de tilápia Gift submetidas a seleção individual
title Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection
spellingShingle Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection
Silva, Bruno Corrêa
Oreochromis niloticus
individual selecton
morphological parameters
phenotypic correlatons
Oreochromis niloticus
seleção individual
parâmetros morfológicos
correlações fenotípicas.
title_short Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection
title_full Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection
title_fullStr Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection
title_full_unstemmed Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection
title_sort Morphometric measurements and phenotypic correlations of the tilapia Gift (Oreochromis niloticus) after individual selection
author Silva, Bruno Corrêa
author_facet Silva, Bruno Corrêa
Marchiori, Natália da Costa
Silva, Fabiano Muller
author_role author
author2 Marchiori, Natália da Costa
Silva, Fabiano Muller
author2_role author
author
dc.contributor.author.fl_str_mv Silva, Bruno Corrêa
Marchiori, Natália da Costa
Silva, Fabiano Muller
dc.subject.por.fl_str_mv Oreochromis niloticus
individual selecton
morphological parameters
phenotypic correlatons
Oreochromis niloticus
seleção individual
parâmetros morfológicos
correlações fenotípicas.
topic Oreochromis niloticus
individual selecton
morphological parameters
phenotypic correlatons
Oreochromis niloticus
seleção individual
parâmetros morfológicos
correlações fenotípicas.
description This study aimed to evaluate the effect of individual selection for body weight on morphometric characteristics of the Nile tilapia, Gift-Epagri strain, and as well as to determine the phenotypic correlations of these measurements. We used 325 males and 272 females derived from seven different populations of the breeding program. The following morphometric characteristics were measured: body weight (BW), total length (TL), standard length (SL), corrected length (CL), head length (HL), body height (BH) and body width (BW). Thereafter, the data were used to determine the following ratios: Fulton condition factor (FC), HL/SL, BH/SL, BW/SL and CL/SL. Fish selected for body weight showed greater FC and BH/SL compared to unselected fish. In addition, all correlations between variables were high (above 0.70), indicating that the selection of individuals with higher body weight may provide indirect gains in other desirable characteristics.
publishDate 2018
dc.date.none.fl_str_mv 2018-10-03
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://publicacoes.epagri.sc.gov.br/rac/article/view/213
url https://publicacoes.epagri.sc.gov.br/rac/article/view/213
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/213/251
dc.rights.driver.fl_str_mv Copyright (c) 2018 Revista Agropecuária Catarinense
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2018 Revista Agropecuária Catarinense
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 31 No. 3 (2018); 38-40
Agropecuária Catarinense; v. 31 n. 3 (2018); 38-40
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
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