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

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dc.contributor.authorCarrara, Eula Regina
dc.contributor.authorPeixoto, Maria Gabriela Campolina Diniz
dc.contributor.authorda Silva, Alessandra Alves [UNESP]
dc.contributor.authorBruneli, Frank Angelo Tomita
dc.contributor.authorVentura, Henrique Torres
dc.contributor.authorZadra, Lenira El Faro
dc.contributor.authorJosahkian, Luiz Antônio
dc.contributor.authorVeroneze, Renata
dc.contributor.authorLopes, Paulo Sávio
dc.contributor.institutionFederal University of Viçosa
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionBrazilian Association of Zebu Breeders
dc.contributor.institutionBrazilian Center for the Genetic Improvement of Guzerá
dc.date.accessioned2023-07-29T12:49:00Z
dc.date.available2023-07-29T12:49:00Z
dc.date.issued2023-02-01
dc.description.abstractThis 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.en
dc.description.affiliationDepartment of Animal Science Federal University of Viçosa, Minas Gerais
dc.description.affiliationEmbrapa Dairy Cattle, Minas Gerais
dc.description.affiliationDepartment of Agricultural Sciences School of Agricultural and Veterinarian Sciences São Paulo State University, Jaboticabal
dc.description.affiliationBrazilian Association of Zebu Breeders, Minas Gerais
dc.description.affiliationBrazilian Center for the Genetic Improvement of Guzerá, Minas Gerais
dc.description.affiliationUnespDepartment of Agricultural Sciences School of Agricultural and Veterinarian Sciences São Paulo State University, Jaboticabal
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipInstituto Nacional de Ciência e Tecnologia Midas
dc.description.sponsorshipIdCAPES: 1246/2020
dc.description.sponsorshipIdCAPES: 3200217011p9
dc.description.sponsorshipIdInstituto Nacional de Ciência e Tecnologia Midas: 465377/2014–9
dc.identifierhttp://dx.doi.org/10.1007/s11250-023-03484-9
dc.identifier.citationTropical Animal Health and Production, v. 55, n. 1, 2023.
dc.identifier.doi10.1007/s11250-023-03484-9
dc.identifier.issn1573-7438
dc.identifier.issn0049-4747
dc.identifier.scopus2-s2.0-85146925047
dc.identifier.urihttp://hdl.handle.net/11449/246730
dc.language.isoeng
dc.relation.ispartofTropical Animal Health and Production
dc.sourceScopus
dc.subjectBrazilian Guzerá cattle
dc.subjectProductive and reproductive traits
dc.subjectSingle-step approach
dc.titleGenomic prediction in Brazilian Guzerá cattle: application of a single-step approach to productive and reproductive traitsen
dc.typeArtigo
unesp.author.orcid0000-0002-3477-6929[1]
unesp.author.orcid0000-0002-0011-7036[2]
unesp.author.orcid0000-0001-8792-9389[3]
unesp.author.orcid0000-0002-8623-3993[4]
unesp.author.orcid0000-0002-8951-183X[5]
unesp.author.orcid0000-0002-1508-4097[6]
unesp.author.orcid0000-0001-9609-8142[7]
unesp.author.orcid0000-0003-2715-7545[8]
unesp.author.orcid0000-0003-0923-1465[9]

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