1. Department of Animal Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing 100193, P.R. China
2. College of Wildlife Resources, Northeast Forestry University, Harbin, Heilongjiang 150040, P.R. China
3. Scientific Experiment Research Center, Harbin Sport University, Harbin, Heilongjiang 150008, P.R. China
4. College of Human Movement Science, Harbin Sport University, Harbin, Heilongjiang 150008, P.R. China