1. College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
2. School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230036, China
3. Key Laboratory of Pig Molecular Quantitative Genetics of Anhui Academy of Agricultural Sciences, Anhui Provincial Key Laboratory of Livestock and Poultry Product Safety Engineering, Institute of Animal Husbandry and Veterinary Medicine, Anhui Academy of Agricultural Sciences, Hefei 230031, China