1. College of Veterinary Medicine, Jilin Agricultural University, Changchun, China
2. Jilin Provincial Engineering Research Center of Animal Probiotics, Jilin Provincial Key Laboratory of Animal Microecology and Healthy Breeding, Jilin Agricultural University, Changchun, China
3. Engineering Research Center of Microecological Vaccines (Drugs) for Major Animal Diseases, Ministry of Education, Jilin Agricultural University, Changchun, China
4. Puensum Genetech Institute, Wuhan, China