ACKNOWLEDGMENTS
This study was funded by grants from Xi’an IRIS Livestock Technology Co.
Ltd. (K4030218170), China Postdoctoral Science Foundation (2017M610659,
2018T111113), the State Key Laboratory of Veterinary Etiological
Biology, Lanzhou Veterinary Research Institute, Chinese Academy of
Agricultural Sciences (SKLVEB2016KFKT014), and the Fundamental Research
Funds for the Central Universities (2452019053). The authors thank Ass.
Prof. Tomasz Stenzel from Department of Bird Diseases, Faculty of
Veterinary Medicine in Olsztyn for proofreading the manuscript.