1. Key Laboratory of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing 210095, China
2. Department of Veterinary Parasitic Disease, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
3. Department of Functional Genomics and Bioregulation, Institute of Animal Genetics, FLI, Mariensee, Neustadt a Rbg, Germany