Funding for this research was provided by:
Narodowe Centrum Nauki (2015/17/B/NZ9/01561)
Received: 6 April 2020
Accepted: 25 August 2020
First Online: 31 August 2020
Ethics approval and consent to participate
: All procedures involving animals were performed in accordance with the Guiding Principles for the Care and Use of Research Animals and were approved by the Local Ethics Commission III (Warsaw University of Life Sciences; Permission No. 27/2009). 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 written permission regarding the use of the cows in this study.
: Not applicable.
: The authors declare that they have no competing interests.