Funding for this research was provided by:
Guangdong Key Laboratory of Innovation Method and Decision Management System (2018LM1112)
the National Modern Agricultural Industry Technology System Project of China (CARS-41)
the National Key R&D Program of China (2017YFD0502001)
Received: 29 October 2018
Accepted: 13 February 2019
First Online: 21 February 2019
Ethics approval and consent to participate
: The study involved animals, and include a statement on ethics approval.
: Not applicable.
: The authors declare that they have no competing interests.
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