1. Tianjin Key Laboratory of Agricultural Animal Breeding and Healthy Breeding,Department of Animal Science and Veterinary Medicine, Tianjin Agricultural University, Tianjin, China
2. Department of Animal Science and Technology, College of Agriculture, Liaocheng University, Liaocheng, China
3. Qingdao Jiazhi Biotechnology Co., Ltd., Qingdao, China
4. College of Veterinary Medicine, Research Center for Animal Disease Control Engineering Shandong, Shandong Agricultural University, Tai`an, China