Funding for this research was provided by:
System for Poultry Production Technology, Beijing Innovation Research Team of Modern Agriculture (BAIC04-2016)
Text and Data Mining valid from 2018-03-12
Received: 15 August 2017
Accepted: 22 January 2018
First Online: 12 March 2018
Ethics approval and consent to participate
: All protocols and procedures were performed according to the Beijing Regulations of Laboratory Animals, and the animal study proposal was approved by The Laboratory Animal Ethical Committee of China Agricultural University (permit number SYXK20130013). All experiments used in this study were performed in accordance with protocols approved guidelines and regulations.
: Not applicable.
: The authors confirm they have read Biomed Central’s guidelines on competing interests and declare no competing interests.