Funding for this research was provided by:
National Basic Research Program of China (973 Program) (2012CB124703)
National Key Research and Development Plan of China (2016YFD0501207)
the China Agriculture Research System (CARS-36)
Text and Data Mining valid from 2018-04-20
Received: 14 September 2017
Accepted: 5 March 2018
First Online: 20 April 2018
Ethics approval and consent to participate
: The protocols used in this experiment were approved by the Northeast Agricultural University Institutional Animal Care and Use Committee. All animal experimental procedures were approved by the Ethical and Animal Welfare Committee of Heilongjiang Province, China.
: Not applicable.
: None of the authors had any personal or financial conflict of interest.