Genomic prediction in Brazilian Guzerá cattle: application of a single-step approach to productive and reproductive traits

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal University of Viçosa-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorBrazilian Association of Zebu Breeders-
Autor(es): dc.contributorBrazilian Center for the Genetic Improvement of Guzerá-
Autor(es): dc.creatorCarrara, Eula Regina-
Autor(es): dc.creatorPeixoto, Maria Gabriela Campolina Diniz-
Autor(es): dc.creatorda Silva, Alessandra Alves-
Autor(es): dc.creatorBruneli, Frank Angelo Tomita-
Autor(es): dc.creatorVentura, Henrique Torres-
Autor(es): dc.creatorZadra, Lenira El Faro-
Autor(es): dc.creatorJosahkian, Luiz Antônio-
Autor(es): dc.creatorVeroneze, Renata-
Autor(es): dc.creatorLopes, Paulo Sávio-
Data de aceite: dc.date.accessioned2025-08-21T21:14:39Z-
Data de disponibilização: dc.date.available2025-08-21T21:14:39Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-01-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11250-023-03484-9-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246730-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246730-
Descrição: dc.descriptionThis study aimed to investigate the feasibility of genomic prediction for productive and reproductive traits in Guzerá cattle using single-step genomic best linear unbiased prediction (ssGBLUP). Evaluations included the 305-day cumulative yields (first lactation, in kg) of milk, lactose, protein, fat, and total solids; adjusted body weight (kg) at the ages of 450, 365, and 210 days; and age at first calving (in days), from a database containing 197,283 measurements from Guzerá males and females born between 1954 and 2018. The pedigree included 433,823 animals spanning up to 14 overlapping generations. A total of 1618 animals were genotyped. The analyses were performed using ssGBLUP and traditional BLUP methods. Predictive ability and bias were accessed using cross-validation: predictive ability was similar between the methods and ranged from 0.27 to 0.47 for the genomic-based model and from 0.30 to 0.45 for the pedigree-based model; the bias was also similar between the methods, ranging from 0.88 to 1.35 in the genomic-based model and from 0.96 to 1.41 in the pedigree-based model. The individual accuracies of breeding values were evidently increased in the genomic evaluation, with values ranging from 0.41 to 0.56 in the genomic-based model and from 0.26 to 0.54 in the pedigree-based model. Even based on a small number of genotyped animals and a small database for some traits, the results suggest that ssGBLUP is feasible and may be applied to national genetic evaluation of the breed to increase the accuracy of breeding values without greatly impacting predictive ability and bias.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionInstituto Nacional de Ciência e Tecnologia Midas-
Descrição: dc.descriptionDepartment of Animal Science Federal University of Viçosa, Minas Gerais-
Descrição: dc.descriptionEmbrapa Dairy Cattle, Minas Gerais-
Descrição: dc.descriptionDepartment of Agricultural Sciences School of Agricultural and Veterinarian Sciences São Paulo State University, Jaboticabal-
Descrição: dc.descriptionBrazilian Association of Zebu Breeders, Minas Gerais-
Descrição: dc.descriptionBrazilian Center for the Genetic Improvement of Guzerá, Minas Gerais-
Descrição: dc.descriptionDepartment of Agricultural Sciences School of Agricultural and Veterinarian Sciences São Paulo State University, Jaboticabal-
Descrição: dc.descriptionCAPES: 1246/2020-
Descrição: dc.descriptionCAPES: 3200217011p9-
Descrição: dc.descriptionInstituto Nacional de Ciência e Tecnologia Midas: 465377/2014–9-
Idioma: dc.languageen-
Relação: dc.relationTropical Animal Health and Production-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBrazilian Guzerá cattle-
Palavras-chave: dc.subjectProductive and reproductive traits-
Palavras-chave: dc.subjectSingle-step approach-
Título: dc.titleGenomic prediction in Brazilian Guzerá cattle: application of a single-step approach to productive and reproductive traits-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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