The value of cows in reference populations for genomic selection of new functional traits

Animal : an International Journal of Animal Bioscience
L H BuchA C Sørensen

Abstract

Today, almost all reference populations consist of progeny tested bulls. However, older progeny tested bulls do not have reliable estimated breeding values (EBV) for new traits. Thus, to be able to select for these new traits, it is necessary to build a reference population. We used a deterministic prediction model to test the hypothesis that the value of cows in reference populations depends on the availability of phenotypic records. To test the hypothesis, we investigated different strategies of building a reference population for a new functional trait over a 10-year period. The trait was either recorded on a large scale (30 000 cows per year) or on a small scale (2000 cows per year). For large-scale recording, we compared four scenarios where the reference population consisted of 30 sires; 30 sires and 170 test bulls; 30 sires and 2000 cows; or 30 sires, 2000 cows and 170 test bulls in the first year with measurements of the new functional trait. In addition to varying the make-up of the reference population, we also varied the heritability of the trait (h2 = 0.05 v. 0.15). The results showed that a reference population of test bulls, cows and sires results in the highest accuracy of the direct genomic values (DGV) for a ne...Continue Reading

References

Aug 3, 2006·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·L R Schaeffer
Dec 22, 2006·Journal of Dairy Science·K-J PeterssonM D Royal
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May 11, 2011·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·L H BuchA C Sørensen

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Citations

Dec 4, 2012·Animal : an International Journal of Animal Bioscience·A Bouquet, J Juga
Mar 10, 2016·Animal : an International Journal of Animal Bioscience·K Schöpke, H H Swalve
Jul 6, 2014·Journal of Dairy Science·J R ThomasenB Guldbrandtsen
Aug 20, 2014·Journal of Animal Breeding and Genetics = Zeitschrift Für Tierzüchtung Und Züchtungsbiologie·H Hansen AxelssonW F Fikse
Sep 4, 2015·Animal : an International Journal of Animal Bioscience·G SuM S Lund
Sep 30, 2016·Genetics, Selection, Evolution : GSE·Laura PlieschkeKay-Uwe Götz
Jun 4, 2013·Journal of Dairy Science·H Hansen AxelssonL Rydhmer
Oct 27, 2017·Genetics, Selection, Evolution : GSE·Jérôme RaoulJean-Michel Elsen
Dec 29, 2017·Genetics, Selection, Evolution : GSE·Jean-Michel Elsen
Jul 31, 2018·Asian-Australasian Journal of Animal Sciences·Kenji TogashiKimihiro Moribe
Dec 13, 2016·Journal of Dairy Science·Y de HaasJ Lassen
Jan 1, 2018·Reproduction, Fertility, and Development·Lex Bach
Jun 6, 2012·Journal of Animal Science·E C G Pimentel, S König
Apr 26, 2020·Journal of Dairy Science·I van den BergJ E Pryce
Jul 22, 2021·Genetics, Selection, Evolution : GSE·Hakimeh Emamgholi BegliChristine F Baes

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