Funding for this research was provided by:
National Natural Science Foundation of China (No.31402254, 31572573)
Received: 4 September 2018
Accepted: 23 November 2018
First Online: 18 December 2018
Ethics approval and consent to participate
: This study was carried out in accordance with the recommendations of Regulations for the Administration of Affairs Concerning Experimental Animals approved by the State Council of People’s Republic of China. The protocol was approved by Institutional Animal Care and Use Committee of Lanzhou Institute of Husbandry and Pharmaceutical Science of Chinese Academy of Agricultural Science.
: Not applicable.
: The authors declare that they have no competing interests.
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