Funding for this research was provided by:
National Institute of Animal Science, Rural Development Administration (RDA), Republic of Korea (PJ01251902)
Text and Data Mining valid from 2018-05-29
Received: 15 November 2017
Accepted: 14 May 2018
First Online: 29 May 2018
Ethics approval and consent to participate
: No ethics statement was required for the collection of DNA samples. DNA was extracted either from artificial insemination bull semen straws or from blood samples obtained from the Hanwoo Improvement Center of the National Agricultural Cooperative Federation (HICNACF) with the permission of the owners. The protocol was approved by the Committee on the Ethics of Animal Experiments of the National Institute of Animal Science (Permit Number: NIAS2015–774).
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.