Accuracy of genomic selection for age at puberty in a multi-breed population of tropically adapted beef cattle

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dc.contributor.authorFarah, M. M. [UNESP]
dc.contributor.authorSwan, A. A.
dc.contributor.authorFortes, M. R. S.
dc.contributor.authorFonseca, R. [UNESP]
dc.contributor.authorMoore, S. S.
dc.contributor.authorKelly, M. J.
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniv New England
dc.contributor.institutionUniv Queensland
dc.date.accessioned2018-11-26T15:28:32Z
dc.date.available2018-11-26T15:28:32Z
dc.date.issued2016-02-01
dc.description.abstractGenomic selection is becoming a standard tool in livestock breeding programs, particularly for traits that are hard to measure. Accuracy of genomic selection can be improved by increasing the quantity and quality of data and potentially by improving analytical methods. Adding genotypes and phenotypes from additional breeds or crosses often improves the accuracy of genomic predictions but requires specific methodology. A model was developed to incorporate breed composition estimated from genotypes into genomic selection models. This method was applied to age at puberty data in female beef cattle (as estimated from age at first observation of a corpus luteum) from a mix of Brahman and Tropical Composite beef cattle. In this dataset, the new model incorporating breed composition did not increase the accuracy of genomic selection. However, the breeding values exhibited slightly less bias (as assessed by deviation of regression of phenotype on genomic breeding values from the expected value of 1). Adding additional Brahman animals to the Tropical Composite analysis increased the accuracy of genomic predictions and did not affect the accuracy of the Brahman predictions.en
dc.description.affiliationUniv Estadual Paulista, Fac Ciencias Agr & Vet, BR-14884900 Jaboticabal, SP, Brazil
dc.description.affiliationUniv New England, Anim Genet & Breeding Unit, Armidale, NSW 2351, Australia
dc.description.affiliationUniv Queensland, Ctr Anim Sci, Queensland Alliance Agr & Food Innovat, Brisbane, Qld 4072, Australia
dc.description.affiliationUnespUniv Estadual Paulista, Fac Ciencias Agr & Vet, BR-14884900 Jaboticabal, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCAPES: 13843/12-5
dc.format.extent3-11
dc.identifierhttp://dx.doi.org/10.1111/age.12362
dc.identifier.citationAnimal Genetics. Hoboken: Wiley-blackwell, v. 47, n. 1, p. 3-11, 2016.
dc.identifier.doi10.1111/age.12362
dc.identifier.issn0268-9146
dc.identifier.urihttp://hdl.handle.net/11449/158663
dc.identifier.wosWOS:000368173100001
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofAnimal Genetics
dc.relation.ispartofsjr0,830
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectBos indicus
dc.subjectbreeding values
dc.subjecttropical composite
dc.titleAccuracy of genomic selection for age at puberty in a multi-breed population of tropically adapted beef cattleen
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-Blackwell

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