Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.livsci.2020.104168 http://hdl.handle.net/11449/200765 |
Resumo: | Mangalarga Marchador (MM) is a very important Brazilian gaited horse breed. These animals show two gait types, differing in proportion of lateral or diagonal movements. Thus, it is possible to consider the gait type as a binary categorical trait in our statistical models. Threshold models (TM) are strongly recommended to handle binary traits for genetic evaluation purposes. However, TM are susceptible to the extreme categorical problem (ECP). ECP is usually observed due to the absence of variation within subclasses for a given systematic effect and can be avoided after handling this effect as random or by combining different systematic effects in the model. In this context, we aimed to find the most suitable systematic effect (based on goodness-of-fit and predictive ability) to be included in Bayesian threshold model for the genetic evaluation of gait type in MM horses. The dataset consisted of 1,231 gait type records and 3,172 animals in the pedigree file. Phenotypic record associated with gait type was treated as a categorical trait (MP = 0 and MB = 1). In summary, models with small complexity were benefited by smaller bias and average prediction errors. Additionally, these models showed higher heritability estimates. ECP was an important issue, and should always be approached when using threshold models for genetic evaluation. |
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Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horsesBayesian inferenceExtreme categorical problemGaited horseThreshold modelsMangalarga Marchador (MM) is a very important Brazilian gaited horse breed. These animals show two gait types, differing in proportion of lateral or diagonal movements. Thus, it is possible to consider the gait type as a binary categorical trait in our statistical models. Threshold models (TM) are strongly recommended to handle binary traits for genetic evaluation purposes. However, TM are susceptible to the extreme categorical problem (ECP). ECP is usually observed due to the absence of variation within subclasses for a given systematic effect and can be avoided after handling this effect as random or by combining different systematic effects in the model. In this context, we aimed to find the most suitable systematic effect (based on goodness-of-fit and predictive ability) to be included in Bayesian threshold model for the genetic evaluation of gait type in MM horses. The dataset consisted of 1,231 gait type records and 3,172 animals in the pedigree file. Phenotypic record associated with gait type was treated as a categorical trait (MP = 0 and MB = 1). In summary, models with small complexity were benefited by smaller bias and average prediction errors. Additionally, these models showed higher heritability estimates. ECP was an important issue, and should always be approached when using threshold models for genetic evaluation.Bioinformatic and Animal Breeding Lab. Department of Animal Nutrition and Production College of Veterinary Medicine and Animal Science University of São Paulo (VNP-FMVZ/USP), Av. Duque de Caxias Norte, 225, 13.635-900Department of Animal Science Federal University of Viçosa (DZO-UFV), Av. P H Rolfs, s/n, 36.570-900Department of Basic Sciences College of Animal Science and Food Engineering University of São Paulo (ZAB-FZEA/USP), Av. Duque de Caxias Norte, 225, 13.635-900Department of Animal Science College of Agricultural and Veterinary Sciences São Paulo State University (FCAV/UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, 14.884-900Group of Animal Breeding and Biotechnology Department of Veterinary Medicine College of Animal Science and Food Engineering University of São Paulo (GMAB/ZMV-FZEA/USP), Av. Duque de Caxias Norte, 225, 13.635-900Department of Morphology and Animal Physiology College of Agriculture and Veterinary Science São Paulo State University (FCAV/UNESP), access route Paulo Donato CastellaneDepartment of Animal Improvement and Nutrition College of Veterinary Medicine and Animal Science São Paulo State University (FMVZ/UNESP), Rua José Barbosa de Barros, 1780, Fazenda Experimental Lageado, 18.618-307Department of Animal Science College of Agricultural and Veterinary Sciences São Paulo State University (FCAV/UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, 14.884-900Department of Morphology and Animal Physiology College of Agriculture and Veterinary Science São Paulo State University (FCAV/UNESP), access route Paulo Donato CastellaneDepartment of Animal Improvement and Nutrition College of Veterinary Medicine and Animal Science São Paulo State University (FMVZ/UNESP), Rua José Barbosa de Barros, 1780, Fazenda Experimental Lageado, 18.618-307Universidade de São Paulo (USP)Universidade Federal de Viçosa (UFV)Universidade Estadual Paulista (Unesp)Bussiman, Fernando de OliveiraSilva, Fabyano Fonseca eCarvalho, Rachel Santos BuenoVentura, Ricardo Vieirade Oliveira, Henrique Nunes [UNESP]Abreu Silva, Bárbara da ConceiçãoFonseca, Mayara Gonçalves [UNESP]dos Santos, Bruna Aparecida [UNESP]Pereira, Guilherme Luis [UNESP]Eler, Joanir PereiraFerraz, José Bento StermanMattos, Elisângela ChicaroniCuri, Rogério Abdallah [UNESP]Balieiro, Júlio Cesar de Carvalho2020-12-12T02:15:28Z2020-12-12T02:15:28Z2020-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.livsci.2020.104168Livestock Science, v. 239.1871-1413http://hdl.handle.net/11449/20076510.1016/j.livsci.2020.1041682-s2.0-8508804508535147134139191260000-0001-6289-0406Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengLivestock Scienceinfo:eu-repo/semantics/openAccess2024-06-07T18:44:29Zoai:repositorio.unesp.br:11449/200765Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:35:24.137809Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses |
title |
Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses |
spellingShingle |
Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses Bussiman, Fernando de Oliveira Bayesian inference Extreme categorical problem Gaited horse Threshold models |
title_short |
Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses |
title_full |
Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses |
title_fullStr |
Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses |
title_full_unstemmed |
Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses |
title_sort |
Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses |
author |
Bussiman, Fernando de Oliveira |
author_facet |
Bussiman, Fernando de Oliveira Silva, Fabyano Fonseca e Carvalho, Rachel Santos Bueno Ventura, Ricardo Vieira de Oliveira, Henrique Nunes [UNESP] Abreu Silva, Bárbara da Conceição Fonseca, Mayara Gonçalves [UNESP] dos Santos, Bruna Aparecida [UNESP] Pereira, Guilherme Luis [UNESP] Eler, Joanir Pereira Ferraz, José Bento Sterman Mattos, Elisângela Chicaroni Curi, Rogério Abdallah [UNESP] Balieiro, Júlio Cesar de Carvalho |
author_role |
author |
author2 |
Silva, Fabyano Fonseca e Carvalho, Rachel Santos Bueno Ventura, Ricardo Vieira de Oliveira, Henrique Nunes [UNESP] Abreu Silva, Bárbara da Conceição Fonseca, Mayara Gonçalves [UNESP] dos Santos, Bruna Aparecida [UNESP] Pereira, Guilherme Luis [UNESP] Eler, Joanir Pereira Ferraz, José Bento Sterman Mattos, Elisângela Chicaroni Curi, Rogério Abdallah [UNESP] Balieiro, Júlio Cesar de Carvalho |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Federal de Viçosa (UFV) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Bussiman, Fernando de Oliveira Silva, Fabyano Fonseca e Carvalho, Rachel Santos Bueno Ventura, Ricardo Vieira de Oliveira, Henrique Nunes [UNESP] Abreu Silva, Bárbara da Conceição Fonseca, Mayara Gonçalves [UNESP] dos Santos, Bruna Aparecida [UNESP] Pereira, Guilherme Luis [UNESP] Eler, Joanir Pereira Ferraz, José Bento Sterman Mattos, Elisângela Chicaroni Curi, Rogério Abdallah [UNESP] Balieiro, Júlio Cesar de Carvalho |
dc.subject.por.fl_str_mv |
Bayesian inference Extreme categorical problem Gaited horse Threshold models |
topic |
Bayesian inference Extreme categorical problem Gaited horse Threshold models |
description |
Mangalarga Marchador (MM) is a very important Brazilian gaited horse breed. These animals show two gait types, differing in proportion of lateral or diagonal movements. Thus, it is possible to consider the gait type as a binary categorical trait in our statistical models. Threshold models (TM) are strongly recommended to handle binary traits for genetic evaluation purposes. However, TM are susceptible to the extreme categorical problem (ECP). ECP is usually observed due to the absence of variation within subclasses for a given systematic effect and can be avoided after handling this effect as random or by combining different systematic effects in the model. In this context, we aimed to find the most suitable systematic effect (based on goodness-of-fit and predictive ability) to be included in Bayesian threshold model for the genetic evaluation of gait type in MM horses. The dataset consisted of 1,231 gait type records and 3,172 animals in the pedigree file. Phenotypic record associated with gait type was treated as a categorical trait (MP = 0 and MB = 1). In summary, models with small complexity were benefited by smaller bias and average prediction errors. Additionally, these models showed higher heritability estimates. ECP was an important issue, and should always be approached when using threshold models for genetic evaluation. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-12T02:15:28Z 2020-12-12T02:15:28Z 2020-09-01 |
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.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.livsci.2020.104168 Livestock Science, v. 239. 1871-1413 http://hdl.handle.net/11449/200765 10.1016/j.livsci.2020.104168 2-s2.0-85088045085 3514713413919126 0000-0001-6289-0406 |
url |
http://dx.doi.org/10.1016/j.livsci.2020.104168 http://hdl.handle.net/11449/200765 |
identifier_str_mv |
Livestock Science, v. 239. 1871-1413 10.1016/j.livsci.2020.104168 2-s2.0-85088045085 3514713413919126 0000-0001-6289-0406 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Livestock Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129440976207872 |