Funding for this research was provided by:
Sichuan International Science and Technology Innovation Cooperation/Hong Kong, Macao and Taiwan Science and Technology Innovation Cooperation Project (2019YFH0065)
Key Open Laboratory of Conservation Biology of Rare Animals in Giant Panda National Park, State Forestry and Grassland Administration (KLSFGAGP2020.014)
High-level Scientific Research Foundation for the Introduction of Talents of Sichuan Agricultural University (03120322)
Received: 28 January 2020
Accepted: 10 June 2020
First Online: 18 June 2020
Compliance with ethical standards
: The authors declare that they have no competing interests.
: This study was approved by the Animal Ethics Committee of Sichuan Agricultural University (Sichuan, China; approval no. SYXK 2014-187), and all procedures involving animals in the present study were in strict accordance with the Guide for the Care and Use of Laboratory Animals (National Research Council, Bethesda, MD, USA) and the recommendations in the ARRIVE guidelines (ExternalRef removed).
: Not applicable.