1 College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong Province, People's Republic of China; Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, Guangdong Province, People's Republic of China; Guangdong Technological Engineering Research Center for Pet, Guangzhou 510642, Guangdong Province, People's Republic of China.
2 College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong Province, People's Republic of China.
3 College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong Province, People's Republic of China; Guangdong Provincial Key Laboratory of Prevention and Control for Severe Clinical Animal Diseases, Guangzhou 510642, Guangdong Province, People's Republic of China; Guangdong Technological Engineering Research Center for Pet, Guangzhou 510642, Guangdong Province, People's Republic of China. Electronic address: LG@scau.edu.cn.
4 College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, Guangdong Province, People's Republic of China. Electronic address: guihongzh@scau.edu.cn.