[Wu, Z. H.; Bu, D. P.; Sun, L. L.; Ma, L.] Chinese Acad Agr Sci, Inst Anim Sci, State Key Lab Anim Nutr, Beijing, Peoples R China.
[Lei, L.] Hunan Agr Univ, Changsha, Hunan, Peoples R China.
[Brenna, J. T.] Univ Texas Austin, Dell Pediat Res Inst, Austin, TX 78712 USA.
[Brenna, J. T.] Univ Texas Austin, Dept Nutr, Austin, TX 78712 USA.
[Brenna, J. T.] Univ Texas Austin, Dept Chem, Austin, TX 78712 USA.
