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Description
  • Estimated breeding values (EBV) for first-lactation milk production of Holstein cattle in the Czech Republic were calculated using a conventional animal model and by single-step prediction of the genomic enhanced breeding value. Two overlapping data sets of milk production data were evaluated: (1) calving years 1991 to 2006, with 861,429 lactations and 1,918,901 animals in the pedigree and (2) calving years 1991 to 2010, with 1,097,319 lactations and 1,906,576 animals in the pedigree. Global Interbull (Uppsala, Sweden) deregressed proofs of 114,189 bulls were used in the analyses. Reliabilities of Interbull values were equivalent to an average of 8.53 effective records, which were used in a weighted analysis. A total of 1,341 bulls were genotyped using the Illumina BovineSNP50 BeadChip V2 (Illumina Inc., San Diego, CA). Among the genotyped bulls were 332 young bulls with no daughters in the first data set but more than 50 daughters (88.41, on average) with performance records in the second data set. For young bulls, correlations of EBV and genomic enhanced breeding value before and after progeny testing, corresponding average expected reliabilities, and effective daughter contributions (ED C) were calculated. The reliability of prediction pedigree EBV of young bulls was 0.41, corresponding to EDC = 10.6. Including Interbull deregressed proofs improved the reliability of prediction by EDC = 13.4 and including genotyping improved prediction reliability by EDC = 6.2. Total average expected reliability of prediction reached 0.67, corresponding to EDC = 30.2. The combination of domestic and Interbull sources for both genotyped and nongenotyped animals is valuable for improving the accuracy of genetic prediction in small populations of dairy cattle.
  • Estimated breeding values (EBV) for first-lactation milk production of Holstein cattle in the Czech Republic were calculated using a conventional animal model and by single-step prediction of the genomic enhanced breeding value. Two overlapping data sets of milk production data were evaluated: (1) calving years 1991 to 2006, with 861,429 lactations and 1,918,901 animals in the pedigree and (2) calving years 1991 to 2010, with 1,097,319 lactations and 1,906,576 animals in the pedigree. Global Interbull (Uppsala, Sweden) deregressed proofs of 114,189 bulls were used in the analyses. Reliabilities of Interbull values were equivalent to an average of 8.53 effective records, which were used in a weighted analysis. A total of 1,341 bulls were genotyped using the Illumina BovineSNP50 BeadChip V2 (Illumina Inc., San Diego, CA). Among the genotyped bulls were 332 young bulls with no daughters in the first data set but more than 50 daughters (88.41, on average) with performance records in the second data set. For young bulls, correlations of EBV and genomic enhanced breeding value before and after progeny testing, corresponding average expected reliabilities, and effective daughter contributions (ED C) were calculated. The reliability of prediction pedigree EBV of young bulls was 0.41, corresponding to EDC = 10.6. Including Interbull deregressed proofs improved the reliability of prediction by EDC = 13.4 and including genotyping improved prediction reliability by EDC = 6.2. Total average expected reliability of prediction reached 0.67, corresponding to EDC = 30.2. The combination of domestic and Interbull sources for both genotyped and nongenotyped animals is valuable for improving the accuracy of genetic prediction in small populations of dairy cattle. (en)
Title
  • Contribution of domestic production records, Interbull estimated breeding values, and single nucleotide polymorphism genetic markers to the single-step genomic evaluation of milk production
  • Contribution of domestic production records, Interbull estimated breeding values, and single nucleotide polymorphism genetic markers to the single-step genomic evaluation of milk production (en)
skos:prefLabel
  • Contribution of domestic production records, Interbull estimated breeding values, and single nucleotide polymorphism genetic markers to the single-step genomic evaluation of milk production
  • Contribution of domestic production records, Interbull estimated breeding values, and single nucleotide polymorphism genetic markers to the single-step genomic evaluation of milk production (en)
skos:notation
  • RIV/00027014:_____/13:#0001778!RIV14-MZE-00027014
http://linked.open...avai/predkladatel
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(QI111A167), Z(MZE0002701404)
http://linked.open...iv/cisloPeriodika
  • 3
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 66917
http://linked.open...ai/riv/idVysledku
  • RIV/00027014:_____/13:#0001778
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • genomic breeding value, single-step prediction, BLUP, genomic relationship (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • US - Spojené státy americké
http://linked.open...ontrolniKodProRIV
  • [3BCD3100C5A9]
http://linked.open...i/riv/nazevZdroje
  • Journal of Dairy Science
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 96
http://linked.open...iv/tvurceVysledku
  • Bauer, Jiří
  • Přibyl, Josef
  • Vostrý, Luboš
  • Zavadilová, Ludmila
  • Šimečková, Marie
  • Přibylová, Jana
  • Madsen, P.
http://linked.open...ain/vavai/riv/wos
  • 000315061700055
http://linked.open...n/vavai/riv/zamer
issn
  • 0022-0302
number of pages
http://bibframe.org/vocab/doi
  • 10.3168/jds.2012-6157
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