1. Key Laboratory of Applied Technology on Green-Eco-Healthy Animal Husbandry of Zhejiang Province, College of Animal Science & Technology, College of Veterinary Medicine, Zhejiang A&F University, Hangzhou, P.R. China
2. College of Animal Science & Technology, Nanjing Agricultural University, Nanjing, P.R. China
3. College of Veterinary Medicine, Northeast Agricultural University, Harbin, P.R. China
4. Zhejiang Provincial Engineering Research Center for Animal Health Diagnostics & Advanced Technology, College of Animal Science & Technology, College of Veterinary Medicine, Zhejiang A&F University, Hangzhou, P.R. China