Funding for this research was provided by:
Ministry of Science and Technology of the People's Republic of China (2016YFD0500803, 2017YFD0500702)
NCFC-RCUK-BBSRC (31761133002, BB/R012865/1)
Received: 14 February 2019
Accepted: 21 October 2019
First Online: 30 October 2019
Ethics approval and consent to participate
: The one-day-old chickens were kindly provided by the farm owner for diagnostic testing. All experiments complied with institutional animal care guidelines and were approved by the Ethics Committee of Yangzhou University. The farm owner gave written informed consent for the diagnostic procedures.
: Not applicable.
: The authors declare that they have no competing interests.