Funding for this research was provided by:
Szkola Glówna Gospodarstwa Wiejskiego w Warszawie
Received: 20 January 2020
Accepted: 29 August 2020
First Online: 4 September 2020
Ethics approval and consent to participate
: This study did not include sampling of live animals and included no sensitive information that could be traced to individual farmers.
: Not applicable.
: The authors declare that they have no competing interests.