Authors
DAL Lourenco, Shogo Tsuruta, BO Fragomeni, Yutaka Masuda, Ignacio Aguilar, Andres Legarra, JK Bertrand, TS Amen, L Wang, DW Moser, Ignacy Misztal
Publication date
2015/6/1
Journal
Journal of animal science
Volume
93
Issue
6
Pages
2653-2662
Publisher
Oxford University Press
Description
Predictive ability of genomic EBV when using single-step genomic BLUP (ssGBLUP) in Angus cattle was investigated. Over 6 million records were available on birth weight (BiW) and weaning weight (WW), almost 3.4 million on postweaning gain (PWG), and over 1.3 million on calving ease (CE). Genomic information was available on, at most, 51,883 animals, which included high and low EBV accuracy animals. Traditional EBV was computed by BLUP and genomic EBV by ssGBLUP and indirect prediction based on SNP effects was derived from ssGBLUP; SNP effects were calculated based on the following reference populations: ref_2k (contains top bulls and top cows that had an EBV accuracy for BiW ≥0.85), ref_8k (contains all parents that were genotyped), and ref_33k (contains all genotyped animals born up to 2012). Indirect prediction was obtained as direct genomic value (DGV) or as an index of DGV …
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