Funding for this research was provided by:
National Natural Science Foundation of China (31372312)
Hebei province Natural Science Foundation of China (C2016204092)
Text and Data Mining valid from 2019-05-09
Received: 4 June 2018
Accepted: 2 May 2019
First Online: 9 May 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.
: Informed consent was obtained from the owner of the animal. All institutional and national guidelines for the care and use of laboratory animals were followed, and all animal experiments were approved by the Agriculture Research Animal Care Committee of Hebei Agriculture University.