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Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/14141
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dc.contributor.authorWeerasinghe, Shalaneeen
dc.contributor.authorGondro, Cedricen
dc.contributor.authorJeyaruban, M Gilberten
dc.contributor.authorMwai, Oen
dc.contributor.authorMjuibi, D Fen
dc.contributor.authorGibson, Johnen
local.source.editorEditor(s): Nicolas Lopez Villalobosen
dc.date.accessioned2014-03-06T11:45:00Z-
dc.date.issued2013-
dc.identifier.citationProceedings of the Association for the Advancement of Animal Breeding and Genetics, v.20, p. 163-166en
dc.identifier.isbn9780473260569en
dc.identifier.issn1328-3227en
dc.identifier.urihttps://hdl.handle.net/1959.11/14141-
dc.description.abstractIdentification of genetic structure and estimation of individual breed proportions in livestock species based on molecular data have become important tools in improvement of breeding programs in the developed world. In this study, we have applied high density SNP assays to understand genetic structure and breed composition of a developing world smallholder dairy system, which does not have pedigree records. Approximately 2000 East African smallholder crossbred dairy cattle were genotyped for 770k SNP. Principal component analysis (PCA) was used to identify the genetic structure and the ADMIXTURE program was used to estimate the proportional breed composition of individual animals. Genomic prediction and farmer prediction for breed proportions were compared. PCA revealed that the range of breed composition of smallholder dairy cattle is much larger than commonly believed. The correlation between breed proportion estimated using ADMIXTURE and the farmer's assessment of breed proportion was only 0.4, revealing that in this system farmers do not have a good understanding of the breed composition of their animals. This will be a problem to be overcome if farmers are to make optimum breeding choices to produce replacement heifers.en
dc.languageenen
dc.publisherAssociation for the Advancement of Animal Breeding and Genetics (AAABG)en
dc.relation.ispartofProceedings of the Association for the Advancement of Animal Breeding and Geneticsen
dc.titleThe prediction of genetic structure of East African smallholder dairy cattleen
dc.typeConference Publicationen
dc.relation.conferenceAAABG 2013: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Actionen
dc.subject.keywordsPopulation, Ecological and Evolutionary Geneticsen
local.contributor.firstnameShalaneeen
local.contributor.firstnameCedricen
local.contributor.firstnameM Gilberten
local.contributor.firstnameOen
local.contributor.firstnameD Fen
local.contributor.firstnameJohnen
local.subject.for2008060411 Population, Ecological and Evolutionary Geneticsen
local.subject.seo2008970106 Expanding Knowledge in the Biological Sciencesen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.schoolAnimal Genetics and Breeding Uniten
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolEnvironmental and Rural Scienceen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailsweerasi@une.edu.auen
local.profile.emailcgondro2@une.edu.auen
local.profile.emailgjeyarub@une.edu.auen
local.profile.emailjgibson5@une.edu.auen
local.output.categoryE1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20140115-12432en
local.date.conference20th - 23rd October, 2013en
local.conference.placeNapier, New Zealanden
local.publisher.placeArmidale, Australiaen
local.format.startpage163en
local.format.endpage166en
local.peerreviewedYesen
local.identifier.volume20en
local.contributor.lastnameWeerasingheen
local.contributor.lastnameGondroen
local.contributor.lastnameJeyarubanen
local.contributor.lastnameMwaien
local.contributor.lastnameMjuibien
local.contributor.lastnameGibsonen
dc.identifier.staffune-id:sweerasien
dc.identifier.staffune-id:cgondro2en
dc.identifier.staffune-id:gjeyaruben
dc.identifier.staffune-id:jgibson5en
local.profile.orcid0000-0003-0666-656Xen
local.profile.orcid0000-0002-0231-0120en
local.profile.orcid0000-0003-0371-2401en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:14354en
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
dc.identifier.academiclevelAcademicen
local.title.maintitleThe prediction of genetic structure of East African smallholder dairy cattleen
local.output.categorydescriptionE1 Refereed Scholarly Conference Publicationen
local.relation.urlhttp://www.aaabg.org/aaabghome/proceedings20.phpen
local.conference.detailsAAABG 2013: 20th Conference of the Association for the Advancement of Animal Breeding and Genetics: Translating Science into Action, Napier, New Zealand, 20th - 23rd October, 2013en
local.search.authorWeerasinghe, Shalaneeen
local.search.authorGondro, Cedricen
local.search.authorJeyaruban, M Gilberten
local.search.authorMwai, Oen
local.search.authorMjuibi, D Fen
local.search.authorGibson, Johnen
local.uneassociationUnknownen
local.year.published2013en
local.subject.for2020310599 Genetics not elsewhere classifieden
local.subject.seo2020280102 Expanding knowledge in the biological sciencesen
local.date.start2013-10-20-
local.date.end2013-10-23-
Appears in Collections:Animal Genetics and Breeding Unit (AGBU)
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