Funding for this research was provided by:
Science and technology plan of Qinghai Province (2020-QY-218, 2020-QY-212)
China Agriculture Research System of MOF and MARA (CARS-37)
Innovation Project of Chinese Academy of Agricultural Sciences (25-LZIHPS-01)
Gansu Natural Science Foundation of China (1506RJZA159)
Received: 14 January 2022
Accepted: 20 June 2022
First Online: 27 June 2022
: The present study was conducted according to the Animal Ethics Procedures and Guidelines of the People's Republic of China, and approved by the Animal Administration and Ethics Committee of Lanzhou Institute of Husbandry and Pharmaceutical Sciences of Chinese Academy of Agricultural Sciences (Permit No. SYXK-2020–0032). The study was also carried out in compliance with the ARRIVE guidelines [CitationRef removed, CitationRef removed]. The yak owner gave an informed consent form in writing.
: Not applicable.
: The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results.