1. Institute of Animal Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, Jilin 130000, P.R. China
2. Department of Rheumatology, The Affiliated Hospital of Changchun University of Chinese Medicine, Changchun, Jilin 130117, P.R. China
3. Medical Department, China‑Japan Union Hospital of Jilin University, Changchun, Jilin 130033, P.R. China
4. Animal Husbandry Information Center of Jilin Province, Changchun, Jilin 130000, P.R. China