| Affiliation: | 1. College of Animal Science and Technology, Sichuan Agricultural University, Ya''an, Sichuan Province 625014, China;2. Research Institute of Raising Livestock, Chengdu Academy of Agriculture and Forestry Sciences, Chengdu, Sichuan Province 611130, China;3. Department of Animal and Poultry Sciences 0306, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, USA;1. Department of Animal Science, South Dakota State University, Brookings, SD 57007, USA;2. Department of Animal Sciences, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, OH 44691, USA |
