State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100193, China;
Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100193, China;
State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100193, China;
Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
State Key Laboratory for Agrobiotechnology, China Agricultural University, Beijing 100193, China;