Funding for this research was provided by:
National Scientific Supporting Projects of China (2015BAD03B06)
Earmarked Fund for Modern Agro-industry Technology Research System (CARS-42-9)
National Natural Science Foundation of China (31572388)
the Program for Changjiang Scholars and Innovative Research Team in University (IRT_15R62)
Text and Data Mining valid from 2019-01-05
Received: 16 September 2018
Accepted: 25 December 2018
First Online: 5 January 2019
Ethics approval and consent to participate
: Animal experiments were approved by the Animal Care and Use Committee of China Agricultural University. All experiments were performed according to regulations and guidelines established by this committee. Animals used in this study were owned by China Agricultural Poultry Resources Station, who consented to the use of these animals in this study.
: Not applicable.
: The authors declare that they have no competing interests. Dr. Jacqueline Smith is a member of the editorial board (Section/Associate Editors) of this journal.
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