Funding for this research was provided by:
National Natural Science Foundation of China (21978121, 31472127)
Natural Science Foundation of Jiangsu Province (BK20190957)
Collaborative Innovation Project of Chinese Academy of Agricultural Sciences (CAAS-XTCX2016011-04-5)
National Chicken Industry Technology System of China (CARS-41)
Received: 20 August 2019
Accepted: 25 November 2019
First Online: 3 December 2019
Ethics approval and consent to participate
: Not applicable.
: All authors consent the manuscript for publication in Biotechnology for Biofuels.
: The authors declare that they have no competing interests.