Estimates of genetic parameters for growth, reproductive, and carcass traits in Nelore cattle using the single step genomic BLUP procedure

dc.contributor.authorKluska, Sabrina [UNESP]
dc.contributor.authorOlivieri, Bianca Ferreira [UNESP]
dc.contributor.authorBonamy, Martin
dc.contributor.authorJustin Chiaia, Hermenegildo Lucas [UNESP]
dc.contributor.authorBraga Feitosa, Fabieli Loise [UNESP]
dc.contributor.authorBerton, Mariana Piatto [UNESP]
dc.contributor.authorPeripolli, Elisa [UNESP]
dc.contributor.authorAntunes Lemos, Marcos Viniclus [UNESP]
dc.contributor.authorTonussi, Rafael Lara [UNESP]
dc.contributor.authorLobo, Raysildo Barbosa
dc.contributor.authorMagnabosco, Claudio de Ulhoa
dc.contributor.authorDi Croce, Fernando
dc.contributor.authorOsterstock, Jason
dc.contributor.authorCravo Pereira, Angelica Simone
dc.contributor.authorMunari, Danisio Prado [UNESP]
dc.contributor.authorBezerra, Luiz Antonio
dc.contributor.authorLopes, Fernando Brito
dc.contributor.authorBaldi, Fernando [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv Nacl La Plata
dc.contributor.institutionAssoc Nacl Criadores & Pesquisadores
dc.contributor.institutionEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.institutionZoetis Genet
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniv Wisconsin
dc.description.abstractThis study was carried out to estimate the heritability and genetic correlations between adjusted weights at 210 (W210) and 450 (W450) days of age, scrotal circumference adjusted at 365 (SC365) and 450 (SC450) days of age, age at first calving (AFC), probability of precocious calving (PPC), stayability (STAY), ribeye area (REA), subcutaneous backfat thickness (BF), and rump fat (RF) traits. The covariance components and genetic parameters for all traits but PPC and STAY were estimated considering a linear animal model, for the remaining traits a threshold animal model was used. The single-step genomic BLUP (ssGBLUP) procedure was used for all traits, and the correlation estimates were obtained by two-traits analysis. The heritability estimated by single-trait analysis were 0.21 +/- 0.01, 0.43 +/- 0.01, 0.47 +/- 0.02, 0.52 +/- 0.02, 0.11 +/- 0.01, 0.12 (0.07-0.16), 0.37 (0.26-0.38), 0.33 +/- 0.02, 0.17 +/- 0.01 and 0.33 +/- 0.02 for W210, W450, SC365, SC450, AFC, PPC, STAY, REA, BF and RF, respectively. Growth traits (W210 and W450) showed high (0.95) genetic correlation with one another, moderate (0.30 to 0.66) with REA and scrotal circumferences, and low (0.07 to 0.20) with female reproductive traits (AFC, PPC, and STAY) and fat carcass indicator traits (BF and RF). Female reproductive traits displayed moderate (0.29 to 0.52) genetic correlations with male reproductive traits, and varied from low to moderate (0.02 to 0.35) with carcass traits. Additionally, carcass traits exhibited low to moderate (0.02 to 0.48) genetic correlations with all traits, except for the genetic correlation between BF and RF (0.73). Hence, higher genetic gains by direct selection would be obtained for W450, SC365, SC450, STAY, REA, and RF. Selection to increase growth traits might increase carcass yield and scrotal circumference, and it would not affect carcass fat content, precocity, and cow longevity indicator traits. The results of this study encourage the use of PPC in Nelore cattle since the selection for such trait would improve the productivity and longevity of the cows. The inclusion of carcass quality indicator traits such as BF or RF in selection indices would increase the genetic gain for carcass grade, but it will require further studies to estimate the economic value of these traits.en
dc.description.affiliationUniv Estadual Paulista, Dept Zootecnia, Jaboticabal, Brazil
dc.description.affiliationUniv Nacl La Plata, Dept Prod Anim, La Plata, Buenos Aires, Argentina
dc.description.affiliationAssoc Nacl Criadores & Pesquisadores, Ribeirao Preto, Brazil
dc.description.affiliationBrazilian Agr Res Corp, Brasilia, DF, Brazil
dc.description.affiliationZoetis Genet, Kalamazoo, MI USA
dc.description.affiliationUniv Sao Paulo, Fac Med Vet & Zootecnia, Dept Nutr & Prod Anim, Pirassununga, Brazil
dc.description.affiliationUniv Sao Paulo, Fac Med Ribeirao Preto, Ribeirao Preto, Brazil
dc.description.affiliationUniv Wisconsin, Dept Anim Sci, Madison, WI 53706 USA
dc.description.affiliationUnespUniv Estadual Paulista, Dept Zootecnia, Jaboticabal, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2016/22751-6
dc.identifier.citationLivestock Science. Amsterdam: Elsevier Science Bv, v. 216, p. 203-209, 2018.
dc.publisherElsevier B.V.
dc.relation.ispartofLivestock Science
dc.rights.accessRightsAcesso aberto
dc.sourceWeb of Science
dc.subjectBos indicus
dc.subjectBeef cattle
dc.subjectGenetic correlations
dc.subjectGenomic information
dc.subjectSelection criteria
dc.titleEstimates of genetic parameters for growth, reproductive, and carcass traits in Nelore cattle using the single step genomic BLUP procedureen
dcterms.rightsHolderElsevier B.V.[5][18]
unesp.departmentZootecnia - FCAVpt