9Hill D A,Peo E R,Lewis A J,et al.Zinc-amino complexes for swine[J].J Anim Sci,1986,63:121-130.
10Hoover S L,M S Carlson,Hill G M,et al.Evaluation of excretion and retention of zinc from inorganic and organic sources in diets fed to weanling pigs[J].J Anim Sci,1997,75(Suppl.1):209(Abstr).