Funding for this research was provided by:
National Key R&D Program of China (2017YFD0500800)
Funds of Shandong “Double Tops” Program, China (SYL2017YSTD11)
Shandong Modern Agricultural Technology & Industry System, China (SDAIT-11-15)
Received: 29 December 2018
Accepted: 2 September 2019
First Online: 5 September 2019
: This research was conducted in strict accordance with the recommendations in the Guide for the Institutional Animal Care and Use Commission (IACUC). The animal experiments were carried out in accordance with the guidelines issued by Shandong Agricultural University Animal Care and Use Committee (SDAUA-2015-33). All animal experiments were performed under anesthesia, and every effort was made to minimize suffering.
: Not applicable.
: The authors declare that they have no competing interests.