Text and Data Mining valid from 2019-03-12
Received: 16 November 2018
Accepted: 4 March 2019
First Online: 12 March 2019
: The authors declare that they have no competing interests.
: The animal use protocol listed in this study was reviewed and approved by the Animal Ethical and Welfare Committee of Gansu Agricultural University in September 2018. Approval No. AEWC-GAU-2018153.
: Not applicable.
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