Text and Data Mining valid from 2019-11-15
Received: 14 May 2019
Accepted: 20 September 2019
First Online: 15 November 2019
: This study was approved by the Animal Ethics Committee of Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences (Approval No. LVRIAEC2013–010). The samples were collected and handled in accordance with the good animal practices required by the Animal Ethics Procedures and Guidelines of the People’s Republic of China. The animals in our study were from several farms in Gansu Province. For the field trials, informed verbal consent was obtained from the farmers. Verbal consent was chosen since a large proportion of the local rural population are illiterates. This proceeding was approved by the Ethics Committee.
: Not applicable.
: The authors declare that they have no competing interests.