Funding for this research was provided by:
National Natural Science Foundation of China (31902282)
Qinghai province Major R&D and Transformation Project (2018-NK-125)
Received: 28 August 2019
Accepted: 13 July 2020
First Online: 23 July 2020
Ethics approval and consent to participate
: All experiments were approved by the Ministry of Health in China for the care and use of laboratory animals and supervised by the Research Ethics Committee of Northwest A&F University. Informed consent was obtained from the animal owners in advance.
: Not applicable.
: The authors declare that they have no conflict of interest.