1. College of Animal Science and Technology, Shandong Agricultural University, Tai’an 271018, China
2. Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai’an 271018, China
3. Shandong Provincial Engineering Technology Research Center of Animal Disease Control and Prevention, Tai’an 271018, China
4. Shandong Provincial Animal Husbandry General Station, Jinan 250102, China
5. Jinzhou Agricultural and Rural Comprehensive Service Center, Jinzhou 121000, China