Funding for this research was provided by:
Natural Science Foundation of Hebei Province (C2019205094)
Received: 29 August 2020
Accepted: 26 October 2020
First Online: 11 November 2020
Ethics approval and consent to participate
: This study was conducted under the protocol of the Ethical Commission of the Northwest Institute of Plateau Biology, Chinese Academy of Sciences and Hebei Normal University. All applicable institutional, national and international guidelines for the protection and use of animals were followed.
: Not applicable.
: The authors declare that they have no conflict of interest.