Funding for this research was provided by:
Narodowe Centrum Nauki (2015/17/B/NZ9/01561)
Received: 15 February 2020
Accepted: 12 February 2021
First Online: 6 March 2021
Ethics approval and consent to participate
: The study was approved by the III Local Ethical Committee in Warsaw (Approval 15/2010). Animals were maintained on the Experimental Farm at the Institute of Genetics and Animal Biotechnology in Jastrzębiec, near Warsaw, Poland. The Experimental Farm is an integral part of the Institute and maintains a herd of 120 dairy cows of the Holstein–Friesian breed. The owner of the herd gave us a written permission regarding the use of the cows in this study.
: The authors declare that they have no competing interests.