1. Guangdong Provincial Zoonosis Prevention and Control Key Laboratory, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510542, China
2. Animal Science Department, Kano University of Science and Technology Wudil, PMB 3244, Kano 20027, Nigeria
3. Animal Science Department, Njala University, Freetown, Sierra Leone
4. College of Animal Science, South China Agricultural University, Guangzhou 510542, China