Funding for this research was provided by:
Gansu Agricultural University (GAU-XKJS-2018-049)
Received: 2 January 2021
Accepted: 29 September 2021
First Online: 15 October 2021
: All procedures involving animals were performed according to the guidelines of the China Council on Animal Care and the Ministry of Agriculture of the People’s Republic of China. The Gansu Agricultural University Animal Care and Use Committee approved all yak handling procedures.
: Not applicable.
: The authors declare that they have no competing interests.