[1] Chinese Acad Sci, Inst Subtrop Agr, Res Ctr Healthy Breeding Livestock & Poultry, Hunan 410125, Peoples R China
[2] Chinese Acad Sci, Inst Subtrop Agr, Hunan Engn & Res Ctr Anim & Poultry Sci, Hunan 410125, Peoples R China
[3] Chinese Acad Sci, Inst Subtrop Agr, Key Lab Agroecol Processes Subtrop Region, Hunan 410125, Peoples R China
[4] Univ Guelph, Dept Food Sci, Guelph, ON N1G 2W1, Canada
[5] Texas A&M Univ, Dept Anim Sci, College Stn, TX 77843 USA