Funding for this research was provided by:
Received: 11 October 2018
Accepted: 24 March 2019
First Online: 29 March 2019
Ethics approval and consent to participate
: Not applicable because no biological samples were collected and no animal handling was performed for this study. Before this study was conducted, consent from data owners was obtained where required. Nordic Cattle Genetic Evaluation (NAV, Aarhus, Denmark) granted the permission for phenotypic records. Viking Genetics (Randers, Denmark) granted the permission for genotype data.
: Not applicable.
: The authors declare that they have no competing interests.
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