Heteroscedastic Reaction Norm Models Improve the Assessment of Genotype by Environment Interaction for Growth, Reproductive, and Visual Score Traits in Nellore Cattle

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Federal de Viçosa (UFV)-
Autor(es): dc.contributorUniversity of Padua-
Autor(es): dc.contributorNational Council for Scientific and Technological Development (CNPq)-
Autor(es): dc.creatorCarvalho Filho, Ivan-
Autor(es): dc.creatorSilva, Delvan A.-
Autor(es): dc.creatorTeixeira, Caio S.-
Autor(es): dc.creatorSilva, Thales L.-
Autor(es): dc.creatorMota, Lucio F. M.-
Autor(es): dc.creatorAlbuquerque, Lucia G.-
Autor(es): dc.creatorCarvalheiro, Roberto-
Data de aceite: dc.date.accessioned2025-08-21T17:40:28Z-
Data de disponibilização: dc.date.available2025-08-21T17:40:28Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/ani12192613-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249251-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249251-
Descrição: dc.descriptionThe assessment of the presence of genotype by environment interaction (GxE) in beef cattle is very important in tropical countries with diverse climatic conditions and production systems. The present study aimed to assess the presence of GxE by using different reaction norm models for eleven traits related to growth, reproduction, and visual score in Nellore cattle. We studied five reaction norm models (RNM), fitting a linear model considering homoscedastic residual variance (RNM_homo), and four models considering heteroskedasticity, being linear (RNM_hete), quadratic (RNM_quad), linear spline (RNM_l-l), and quadratic spline (RNM_q-q). There was the presence of GxE for age at first calving (AFC), scrotal circumference (SC), weaning to yearling weight gain (WYG), and yearling weight (YW). The best models were RNM_l-l for YW and RNM_q-q for AFC, SC, and WYG. The heritability estimates for RNM_l-l ranged from 0.07 to 0.20, 0.42 to 0.61, 0.24 to 0.42, and 0.47 to 0.63 for AFC, SC, WYG, and YW, respectively. The heteroskedasticity in reaction norm models improves the assessment of the presence of GxE for YW, WYG, AFC, and SC. Additionally, the trajectories of reaction norms for these traits seem to be affected by a non-linear component, and selecting robust animals for these traits is an alternative to increase production and reduce environmental sensitivity.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionSchool of Agricultural and Veterinarian Sciences São Paulo State University (UNESP-
Descrição: dc.descriptionDepartment of Animal Science Universidade Federal de Viçosa-
Descrição: dc.descriptionDepartment of Agronomy Food Natural Resources Animals and Environment University of Padua, Padua-
Descrição: dc.descriptionNational Council for Scientific and Technological Development (CNPq)-
Descrição: dc.descriptionSchool of Agricultural and Veterinarian Sciences São Paulo State University (UNESP-
Idioma: dc.languageen-
Relação: dc.relationAnimals-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcattle-
Palavras-chave: dc.subjectenvironmental sensitivity-
Palavras-chave: dc.subjectgenotype by environment-
Palavras-chave: dc.subjectGxE-
Palavras-chave: dc.subjectNellore-
Palavras-chave: dc.subjectreaction norm model-
Palavras-chave: dc.subjectrobustness-
Palavras-chave: dc.subjectspline-
Título: dc.titleHeteroscedastic Reaction Norm Models Improve the Assessment of Genotype by Environment Interaction for Growth, Reproductive, and Visual Score Traits in Nellore Cattle-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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