1. Key Laboratory of Livestock and Poultry Multi-omics of MARA, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan, P. R. China
2. Shandong Key Laboratory of Animal Disease Control and Breeding, Jinan, P.R.China
3. College of Life Sciences, Shandong Normal University, Jinan, P. R. China