Funding for this research was provided by:
the Elite Program of Chinese Academy of Agricultural Sciences
Agricultural Science and Technology Innovation Program (CAAS-ASTIP-2016-LVRI-03)
Received: 21 July 2019
Accepted: 4 September 2019
First Online: 11 September 2019
Ethics approval and consent to participate
: This study was approved by the Animal Administration and Ethics Committee of Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences (Permit No: 2018-015). The Beagle dogs used in this study were handled in accordance with good animal practices required by the Animal Ethics Procedures and Guidelines of the Peopleʼs Republic of China.
: Not applicable.
: The authors declare that they have no competing interests.