1. Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, PR China
2. College of Biological Engineering, Henan University of Technology, Zhengzhou, PR China
3. Department of Technology, Hunan SJA Laboratory Animal Co., Ltd, Changsha, PR China
4. Department of Research & Development, Henan Jianda Bio Sci. & Tech. Co., Ltd, Zhengzhou, PR China