Short communication: Genomic selection in a crossbred cattle population using data from the Dairy Genetics East Africa Project

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cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationScotland's Rural Collegeen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationUniversity of New Englanden
cg.contributor.donorBill & Melinda Gates Foundationen
cg.coverage.countryKenya
cg.coverage.iso3166-alpha2KE
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierOjango J.M.K.: 0000-0003-0224-5370
cg.creator.identifierJohn Gibson: 0000-0003-0371-2401
cg.creator.identifierAlly Okeyo Mwai: 0000-0003-2379-7801
cg.creator.identifierRaphael Mrode: 0000-0003-1964-5653
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.3168/jds.2016-11083en
cg.isijournalISI Journalen
cg.issn0022-0302en
cg.issue9en
cg.journalJournal of Dairy Scienceen
cg.reviewStatusPeer Reviewen
cg.subject.ilriANIMAL BREEDINGen
cg.subject.ilriBREEDSen
cg.subject.ilriCATTLEen
cg.subject.ilriDAIRYINGen
cg.subject.ilriGENETICSen
cg.subject.ilriLIVESTOCKen
cg.volume99en
dc.contributor.authorBrown, A.en
dc.contributor.authorOjango, Julie M.K.en
dc.contributor.authorGibson, John P.en
dc.contributor.authorCoffey, M.en
dc.contributor.authorOkeyo Mwai, Allyen
dc.contributor.authorMrode, Raphael A.en
dc.date.accessioned2016-12-06T14:21:38Zen
dc.date.available2016-12-06T14:21:38Zen
dc.identifier.urihttps://hdl.handle.net/10568/78165
dc.titleShort communication: Genomic selection in a crossbred cattle population using data from the Dairy Genetics East Africa Projecten
dcterms.abstractDue to the absence of accurate pedigree information, it has not been possible to implement genetic evaluations for crossbred cattle in African small-holder systems. Genomic selection techniques that do not rely on pedigree information could, therefore, be a useful alternative. The objective of this study was to examine the feasibility of using genomic selection techniques in a crossbred cattle population using data from Kenya provided by the Dairy Genetics East Africa Project. Genomic estimated breeding values for milk yield were estimated using 2 prediction methods, GBLUP and BayesC, and accuracies were calculated as the correlation between yield deviations and genomic breeding values included in the estimation process, mimicking the situation for young bulls. The accuracy of evaluation ranged from 0.28 to 0.41, depending on the validation population and prediction method used. No significant differences were found in accuracy between the 2 prediction methods. The results suggest that there is potential for implementing genomic selection for young bulls in crossbred small-holder cattle populations, and targeted genotyping and phenotyping should be pursued to facilitate this.en
dcterms.accessRightsLimited Access
dcterms.audienceScientistsen
dcterms.bibliographicCitationBrown, A., Ojango, J., Gibson, J., Coffey, M., Okeyo, M. and Mrode, R. 2016. Short communication: Genomic selection in a crossbred cattle population using data from the Dairy Genetics East Africa Project. Journal of Dairy Science 99(9):7308–7312.en
dcterms.extentp. 7308-7312en
dcterms.issued2016-09
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherAmerican Dairy Science Associationen
dcterms.subjectanimal breedingen
dcterms.subjectdairiesen
dcterms.subjectgeneticsen
dcterms.subjectlivestocken
dcterms.subjectfood scienceen
dcterms.typeJournal Article

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