Model comparisons for genetic evaluation of gait type in Mangalarga Marchador horses

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Federal de Viçosa (UFV)-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorBussiman, Fernando de Oliveira-
Autor(es): dc.creatorSilva, Fabyano Fonseca e-
Autor(es): dc.creatorCarvalho, Rachel Santos Bueno-
Autor(es): dc.creatorVentura, Ricardo Vieira-
Autor(es): dc.creatorde Oliveira, Henrique Nunes [UNESP]-
Autor(es): dc.creatorAbreu Silva, Bárbara da Conceição-
Autor(es): dc.creatorFonseca, Mayara Gonçalves [UNESP]-
Autor(es): dc.creatordos Santos, Bruna Aparecida [UNESP]-
Autor(es): dc.creatorPereira, Guilherme Luis [UNESP]-
Autor(es): dc.creatorEler, Joanir Pereira-
Autor(es): dc.creatorFerraz, José Bento Sterman-
Autor(es): dc.creatorMattos, Elisângela Chicaroni-
Autor(es): dc.creatorCuri, Rogério Abdallah [UNESP]-
Autor(es): dc.creatorBalieiro, Júlio Cesar de Carvalho-
Data de aceite: dc.date.accessioned2022-02-22T00:31:39Z-
Data de disponibilização: dc.date.available2022-02-22T00:31:39Z-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-12-11-
Data de envio: dc.date.issued2020-09-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.livsci.2020.104168-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/200765-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/200765-
Descrição: dc.descriptionMangalarga 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.-
Descrição: dc.descriptionBioinformatic 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, 13.635-900-
Descrição: dc.descriptionDepartment of Animal Science Federal University of Viçosa (DZO-UFV), Av. P H Rolfs, s/n, 36.570-900-
Descrição: dc.descriptionDepartment of Basic Sciences College of Animal Science and Food Engineering University of São Paulo (ZAB-FZEA/USP), Av. Duque de Caxias Norte, 225, 13.635-900-
Descrição: dc.descriptionDepartment of Animal Science College of Agricultural and Veterinary Sciences São Paulo State University (FCAV/UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, 14.884-900-
Descrição: dc.descriptionGroup 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, 13.635-900-
Descrição: dc.descriptionDepartment of Morphology and Animal Physiology College of Agriculture and Veterinary Science São Paulo State University (FCAV/UNESP), access route Paulo Donato Castellane-
Descrição: dc.descriptionDepartment 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, 18.618-307-
Descrição: dc.descriptionDepartment of Animal Science College of Agricultural and Veterinary Sciences São Paulo State University (FCAV/UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, 14.884-900-
Descrição: dc.descriptionDepartment of Morphology and Animal Physiology College of Agriculture and Veterinary Science São Paulo State University (FCAV/UNESP), access route Paulo Donato Castellane-
Descrição: dc.descriptionDepartment 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, 18.618-307-
Idioma: dc.languageen-
Relação: dc.relationLivestock Science-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBayesian inference-
Palavras-chave: dc.subjectExtreme categorical problem-
Palavras-chave: dc.subjectGaited horse-
Palavras-chave: dc.subjectThreshold models-
Título: dc.titleModel comparisons for genetic evaluation of gait type in Mangalarga Marchador horses-
Tipo de arquivo: dc.typelivro digital-
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