Funding for this research was provided by:
Regional Science Fund Project (81760892)
Received: 15 April 2020
Accepted: 21 July 2020
First Online: 1 August 2020
Ethic approval and consent to participate
: This study was approved by Committee of the Animal Protection and Utilization Institute. Animal experimentation in this study was carried out in accordance with the requirements of Committee of the Animal Protection and Utilization Institute. This study was approved by animal experiment ethics of Gansu University of Traditional Chinese Medicine. The carcasses were delivered to the animal center of Gansu Traditional Chinese Medicine for innocuous treatment at the hazardous waste disposal center of Gansu Province (No. 2018-018).
: Not applicable.
: The authors declare that they have competing interests.