Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/23050
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dc.contributor.authorStrucken, Evaen
dc.contributor.authorTetens, Jensen
dc.contributor.authorThaller, Georgen
dc.contributor.authorBuenger, Anetteen
dc.contributor.authorBrockmann, Gudrunen
local.source.editorEditor(s): European Federation of Animal Scienceen
dc.date.accessioned2018-05-21T11:23:00Z-
dc.date.issued2011-
dc.identifier.citation62nd Annual Meeting of the European Federation for Animal Science (EAAP), v.17, p. 31-31en
dc.identifier.isbn9789086867318en
dc.identifier.isbn9789086861774en
dc.identifier.urihttps://hdl.handle.net/1959.11/23050-
dc.description.abstractPhenotypic time dependency in milk production traits in dairy cattle has been known and analyzed over the last century. A genome wide study was conducted to investigate differences and changes in allele effects during the early lactation based on estimated breeding values (EBV). EBVs for milk yield, fat and protein yield, and fat and protein content of 2,408 German Holstein Friesian bulls were assessed in 10-day intervals for the first 60 lactation days (VIT Verden, Germany). EBVs were available for the first three lactations. The genotypic information was taken from the bovine 50k BeadChip (Illumina). 2,338 animals and 43,588 markers passed quality control (MAF <0.01, call rate <0.9, FDR <0.01, IBS<=0.95). The Bonferroni correction was applied to account for multiple testing and the λ inflation factor corrected for population stratification. Most markers were identified for fat content followed by fat yield and protein content. No significant markers were detected for protein yield. Almost all markers occurred on chromosome 14 around the DGAT1 gene. Additionally, single markers were found on chromosome 27 for fat content and chromosome 6 for protein content. Allele effects and P-values increased with later lactation days. One exception for the allele effects was fat yield where only minor differences but with a tendency to smaller effects were found for later lactation days. The most dramatic increase in allele effects and P-values was observed for protein content. Considering trend lines, a change in the slope of 10-18 units for effects on protein content was found, whereas effects on milk yield and fat content only changed for about 8-11 and 3-5 units, respectively. This study provided evidence that gene effects get more pronounced with progressing lactation, and loci with bigger effects at the beginning also tend to stronger affect the production in later lactation.en
dc.languageenen
dc.publisherWageningen Academic Publishersen
dc.relation.ispartofBook of Abstracts of the 62nd Annual Meeting of the European Federation for Animal Scienceen
dc.relation.ispartofseriesEAAP Book of Abstractsen
dc.relation.urihttps://www.wageningenacademic.com/pb-assets/wagen/files/e-books/open_access/9789086867318eaap2011-e.pdf#page=120en
dc.titleLactation Stage Dependent Genome-wide Effects on Breeding Values in Holstein Friesiansen
dc.typeConference Publicationen
dc.relation.conferenceEAAP 2011: 62nd Annual Meeting of the European Federation for Animal Productionen
dc.identifier.doi10.3920/978-90-8686-731-8en
dc.subject.keywordsAnimal Breedingen
local.contributor.firstnameEvaen
local.contributor.firstnameJensen
local.contributor.firstnameGeorgen
local.contributor.firstnameAnetteen
local.contributor.firstnameGudrunen
local.subject.for2008070201 Animal Breedingen
local.subject.seo2008830507 Unprocessed or Minimally Processed Milken
local.subject.seo2008970107 Expanding Knowledge in the Agricultural and Veterinary Sciencesen
local.subject.seo2008830302 Dairy Cattleen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emailestrucke@une.edu.auen
local.output.categoryE3en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordune-20180503-163226en
local.date.conference29th August - 2nd September, 2011en
local.conference.placeStavanger, Norwayen
local.publisher.placeNetherlandsen
local.format.startpage31en
local.format.endpage31en
local.series.issn1382-6077en
local.series.numberVolume 17en
local.url.openhttps://doi.org/10.3920/978-90-8686-731-8en
local.access.fulltextYesen
local.contributor.lastnameStruckenen
local.contributor.lastnameTetensen
local.contributor.lastnameThalleren
local.contributor.lastnameBuengeren
local.contributor.lastnameBrockmannen
local.seriespublisherWageningen Academic Publishersen
local.seriespublisher.placeNetherlandsen
dc.identifier.staffune-id:estruckeen
local.profile.orcid0000-0002-2715-0733en
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:23234en
dc.identifier.academiclevelAcademicen
local.title.maintitleLactation Stage Dependent Genome-wide Effects on Breeding Values in Holstein Friesiansen
local.output.categorydescriptionE3 Extract of Scholarly Conference Publicationen
local.conference.detailsEAAP 2011: 62nd Annual Meeting of the European Federation for Animal Production, Stavanger, Norway, 29th August - 2nd September, 2011en
local.search.authorStrucken, Evaen
local.search.authorTetens, Jensen
local.search.authorThaller, Georgen
local.search.authorBuenger, Anetteen
local.search.authorBrockmann, Gudrunen
local.uneassociationUnknownen
local.atsiresearchNoen
local.sensitive.culturalNoen
local.year.published2011-
local.date.start2011-08-29-
local.date.end2011-09-02-
Appears in Collections:Conference Publication
School of Environmental and Rural Science
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