Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses

Detalhes bibliográficos
Autor(a) principal: Maruch, Suzana
Data de Publicação: 2021
Outros Autores: Rezende, Adalgiza Souza Carneiro de, Gouveia, Gabriela Canabrava, Ribeiro, Virgínia Mara Pereira, Abreu, Luíza Rodrigues Alves, Toral, Fabio Luiz Buranelo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: LOCUS Repositório Institucional da UFV
Texto Completo: https://locus.ufv.br//handle/123456789/30332
https://doi.org/10.37496/rbz5020190262
Resumo: The objective of this work was to estimate genetic parameters and evaluate genetic trends over 26 years for morphometric traits in Mangalarga Marchador horses. Twelve morphometric traits were evaluated (withers and croup heights; length of head, body, shoulder, croup, neck, back, and loins; width of head and croup, and cannon bone and thorax perimeters). These traits were evaluated in 38,341 animals born between 1987 and 2012 and with a relationship matrix of 77,719 animals. Gibbs sampler was used to obtain samples of the posterior distributions of genetic parameters under animal models. Genetic trends were estimated by regression of estimated breeding values in function of birth year. The heritabilities of all traits were moderate to high and ranged from 0.27 to 0.48. However, the additive genetic coefficients of variation were low, ranging from 1.23 to 3.82%. The genetic trends of all the studied traits were significant, but of low magnitude. Negative genetic trend was observed for body length, while positive genetic trends were estimated for the other 11 traits. Although additive genetic differences accounted for a significant part of the phenotypic differences, genetic gains in the population were limited by low phenotypic variability. Therefore, it is necessary to develop data collection strategies to increase phenotypic and genetic variability in the population, such as the inclusion of animals that do not meet breed standard, but which have parents registered in the breeders’ association, in the database
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spelling Maruch, SuzanaRezende, Adalgiza Souza Carneiro deGouveia, Gabriela CanabravaRibeiro, Virgínia Mara PereiraAbreu, Luíza Rodrigues AlvesToral, Fabio Luiz Buranelo2022-12-20T18:26:30Z2022-12-20T18:26:30Z2021-03-30Maruch, S.; Rezende, A. S. C.; Gouveia, G. C.; Ribeiro, V. M. P.; Abreu, L. R. A. and Toral, F. L. B. 2021. Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses. Revista Brasileira de Zootecnia 50:e201902621806-9290https://locus.ufv.br//handle/123456789/30332https://doi.org/10.37496/rbz5020190262The objective of this work was to estimate genetic parameters and evaluate genetic trends over 26 years for morphometric traits in Mangalarga Marchador horses. Twelve morphometric traits were evaluated (withers and croup heights; length of head, body, shoulder, croup, neck, back, and loins; width of head and croup, and cannon bone and thorax perimeters). These traits were evaluated in 38,341 animals born between 1987 and 2012 and with a relationship matrix of 77,719 animals. Gibbs sampler was used to obtain samples of the posterior distributions of genetic parameters under animal models. Genetic trends were estimated by regression of estimated breeding values in function of birth year. The heritabilities of all traits were moderate to high and ranged from 0.27 to 0.48. However, the additive genetic coefficients of variation were low, ranging from 1.23 to 3.82%. The genetic trends of all the studied traits were significant, but of low magnitude. Negative genetic trend was observed for body length, while positive genetic trends were estimated for the other 11 traits. Although additive genetic differences accounted for a significant part of the phenotypic differences, genetic gains in the population were limited by low phenotypic variability. Therefore, it is necessary to develop data collection strategies to increase phenotypic and genetic variability in the population, such as the inclusion of animals that do not meet breed standard, but which have parents registered in the breeders’ association, in the databaseengBrazilian Journal of Animal ScienceR. Bras. Zootec., 50:e20190262, 2021Creative Commons Attribution Licenseinfo:eu-repo/semantics/openAccessequinegenetic gainheritabilityphenotypic selectionEstimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horsesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlereponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINAL1806-9290-rbz-50-e20190262.pdf1806-9290-rbz-50-e20190262.pdfartigoapplication/pdf991277https://locus.ufv.br//bitstream/123456789/30332/1/1806-9290-rbz-50-e20190262.pdfa012d4c8909136b52de7bbde889ad0c4MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://locus.ufv.br//bitstream/123456789/30332/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/303322022-12-20 15:26:30.949oai:locus.ufv.br:123456789/30332Tk9URTogUExBQ0UgWU9VUiBPV04gTElDRU5TRSBIRVJFClRoaXMgc2FtcGxlIGxpY2Vuc2UgaXMgcHJvdmlkZWQgZm9yIGluZm9ybWF0aW9uYWwgcHVycG9zZXMgb25seS4KCk5PTi1FWENMVVNJVkUgRElTVFJJQlVUSU9OIExJQ0VOU0UKCkJ5IHNpZ25pbmcgYW5kIHN1Ym1pdHRpbmcgdGhpcyBsaWNlbnNlLCB5b3UgKHRoZSBhdXRob3Iocykgb3IgY29weXJpZ2h0Cm93bmVyKSBncmFudHMgdG8gRFNwYWNlIFVuaXZlcnNpdHkgKERTVSkgdGhlIG5vbi1leGNsdXNpdmUgcmlnaHQgdG8gcmVwcm9kdWNlLAp0cmFuc2xhdGUgKGFzIGRlZmluZWQgYmVsb3cpLCBhbmQvb3IgZGlzdHJpYnV0ZSB5b3VyIHN1Ym1pc3Npb24gKGluY2x1ZGluZwp0aGUgYWJzdHJhY3QpIHdvcmxkd2lkZSBpbiBwcmludCBhbmQgZWxlY3Ryb25pYyBmb3JtYXQgYW5kIGluIGFueSBtZWRpdW0sCmluY2x1ZGluZyBidXQgbm90IGxpbWl0ZWQgdG8gYXVkaW8gb3IgdmlkZW8uCgpZb3UgYWdyZWUgdGhhdCBEU1UgbWF5LCB3aXRob3V0IGNoYW5naW5nIHRoZSBjb250ZW50LCB0cmFuc2xhdGUgdGhlCnN1Ym1pc3Npb24gdG8gYW55IG1lZGl1bSBvciBmb3JtYXQgZm9yIHRoZSBwdXJwb3NlIG9mIHByZXNlcnZhdGlvbi4KCllvdSBhbHNvIGFncmVlIHRoYXQgRFNVIG1heSBrZWVwIG1vcmUgdGhhbiBvbmUgY29weSBvZiB0aGlzIHN1Ym1pc3Npb24gZm9yCnB1cnBvc2VzIG9mIHNlY3VyaXR5LCBiYWNrLXVwIGFuZCBwcmVzZXJ2YXRpb24uCgpZb3UgcmVwcmVzZW50IHRoYXQgdGhlIHN1Ym1pc3Npb24gaXMgeW91ciBvcmlnaW5hbCB3b3JrLCBhbmQgdGhhdCB5b3UgaGF2ZQp0aGUgcmlnaHQgdG8gZ3JhbnQgdGhlIHJpZ2h0cyBjb250YWluZWQgaW4gdGhpcyBsaWNlbnNlLiBZb3UgYWxzbyByZXByZXNlbnQKdGhhdCB5b3VyIHN1Ym1pc3Npb24gZG9lcyBub3QsIHRvIHRoZSBiZXN0IG9mIHlvdXIga25vd2xlZGdlLCBpbmZyaW5nZSB1cG9uCmFueW9uZSdzIGNvcHlyaWdodC4KCklmIHRoZSBzdWJtaXNzaW9uIGNvbnRhaW5zIG1hdGVyaWFsIGZvciB3aGljaCB5b3UgZG8gbm90IGhvbGQgY29weXJpZ2h0LAp5b3UgcmVwcmVzZW50IHRoYXQgeW91IGhhdmUgb2J0YWluZWQgdGhlIHVucmVzdHJpY3RlZCBwZXJtaXNzaW9uIG9mIHRoZQpjb3B5cmlnaHQgb3duZXIgdG8gZ3JhbnQgRFNVIHRoZSByaWdodHMgcmVxdWlyZWQgYnkgdGhpcyBsaWNlbnNlLCBhbmQgdGhhdApzdWNoIHRoaXJkLXBhcnR5IG93bmVkIG1hdGVyaWFsIGlzIGNsZWFybHkgaWRlbnRpZmllZCBhbmQgYWNrbm93bGVkZ2VkCndpdGhpbiB0aGUgdGV4dCBvciBjb250ZW50IG9mIHRoZSBzdWJtaXNzaW9uLgoKSUYgVEhFIFNVQk1JU1NJT04gSVMgQkFTRUQgVVBPTiBXT1JLIFRIQVQgSEFTIEJFRU4gU1BPTlNPUkVEIE9SIFNVUFBPUlRFRApCWSBBTiBBR0VOQ1kgT1IgT1JHQU5JWkFUSU9OIE9USEVSIFRIQU4gRFNVLCBZT1UgUkVQUkVTRU5UIFRIQVQgWU9VIEhBVkUKRlVMRklMTEVEIEFOWSBSSUdIVCBPRiBSRVZJRVcgT1IgT1RIRVIgT0JMSUdBVElPTlMgUkVRVUlSRUQgQlkgU1VDSApDT05UUkFDVCBPUiBBR1JFRU1FTlQuCgpEU1Ugd2lsbCBjbGVhcmx5IGlkZW50aWZ5IHlvdXIgbmFtZShzKSBhcyB0aGUgYXV0aG9yKHMpIG9yIG93bmVyKHMpIG9mIHRoZQpzdWJtaXNzaW9uLCBhbmQgd2lsbCBub3QgbWFrZSBhbnkgYWx0ZXJhdGlvbiwgb3RoZXIgdGhhbiBhcyBhbGxvd2VkIGJ5IHRoaXMKbGljZW5zZSwgdG8geW91ciBzdWJtaXNzaW9uLgo=Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452022-12-20T18:26:30LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false
dc.title.en.fl_str_mv Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses
title Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses
spellingShingle Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses
Maruch, Suzana
equine
genetic gain
heritability
phenotypic selection
title_short Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses
title_full Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses
title_fullStr Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses
title_full_unstemmed Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses
title_sort Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses
author Maruch, Suzana
author_facet Maruch, Suzana
Rezende, Adalgiza Souza Carneiro de
Gouveia, Gabriela Canabrava
Ribeiro, Virgínia Mara Pereira
Abreu, Luíza Rodrigues Alves
Toral, Fabio Luiz Buranelo
author_role author
author2 Rezende, Adalgiza Souza Carneiro de
Gouveia, Gabriela Canabrava
Ribeiro, Virgínia Mara Pereira
Abreu, Luíza Rodrigues Alves
Toral, Fabio Luiz Buranelo
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Maruch, Suzana
Rezende, Adalgiza Souza Carneiro de
Gouveia, Gabriela Canabrava
Ribeiro, Virgínia Mara Pereira
Abreu, Luíza Rodrigues Alves
Toral, Fabio Luiz Buranelo
dc.subject.eng.fl_str_mv equine
genetic gain
heritability
phenotypic selection
topic equine
genetic gain
heritability
phenotypic selection
description The objective of this work was to estimate genetic parameters and evaluate genetic trends over 26 years for morphometric traits in Mangalarga Marchador horses. Twelve morphometric traits were evaluated (withers and croup heights; length of head, body, shoulder, croup, neck, back, and loins; width of head and croup, and cannon bone and thorax perimeters). These traits were evaluated in 38,341 animals born between 1987 and 2012 and with a relationship matrix of 77,719 animals. Gibbs sampler was used to obtain samples of the posterior distributions of genetic parameters under animal models. Genetic trends were estimated by regression of estimated breeding values in function of birth year. The heritabilities of all traits were moderate to high and ranged from 0.27 to 0.48. However, the additive genetic coefficients of variation were low, ranging from 1.23 to 3.82%. The genetic trends of all the studied traits were significant, but of low magnitude. Negative genetic trend was observed for body length, while positive genetic trends were estimated for the other 11 traits. Although additive genetic differences accounted for a significant part of the phenotypic differences, genetic gains in the population were limited by low phenotypic variability. Therefore, it is necessary to develop data collection strategies to increase phenotypic and genetic variability in the population, such as the inclusion of animals that do not meet breed standard, but which have parents registered in the breeders’ association, in the database
publishDate 2021
dc.date.issued.fl_str_mv 2021-03-30
dc.date.accessioned.fl_str_mv 2022-12-20T18:26:30Z
dc.date.available.fl_str_mv 2022-12-20T18:26:30Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv Maruch, S.; Rezende, A. S. C.; Gouveia, G. C.; Ribeiro, V. M. P.; Abreu, L. R. A. and Toral, F. L. B. 2021. Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses. Revista Brasileira de Zootecnia 50:e20190262
dc.identifier.uri.fl_str_mv https://locus.ufv.br//handle/123456789/30332
dc.identifier.issn.none.fl_str_mv 1806-9290
dc.identifier.doi.pt-BR.fl_str_mv https://doi.org/10.37496/rbz5020190262
identifier_str_mv Maruch, S.; Rezende, A. S. C.; Gouveia, G. C.; Ribeiro, V. M. P.; Abreu, L. R. A. and Toral, F. L. B. 2021. Estimation of genetic parameters and trends for morphometric traits in Brazilian Mangalarga Marchador horses. Revista Brasileira de Zootecnia 50:e20190262
1806-9290
url https://locus.ufv.br//handle/123456789/30332
https://doi.org/10.37496/rbz5020190262
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartofseries.pt-BR.fl_str_mv R. Bras. Zootec., 50:e20190262, 2021
dc.rights.driver.fl_str_mv Creative Commons Attribution License
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Creative Commons Attribution License
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Brazilian Journal of Animal Science
publisher.none.fl_str_mv Brazilian Journal of Animal Science
dc.source.none.fl_str_mv reponame:LOCUS Repositório Institucional da UFV
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