6Boling J A. The role of amino acid chelates in animal nutrition. Animal Sci., 1993, 187-203
7Yu B,Huang W J,Chiou P W S. Bioavailability of iron from amino acid complex in weanling pigs[J]. Animal Feed Science and Technology,2000,86(1):39-52.
8Mclaren G D, Nathanson M H, Jacobs A, et al. Control of iron absorption in hemochromatosis: mucosal iron kinetics in vivo[J]. Aninals of the New York Academy of Science,1988,526:185-198.
9Sundberg, Maria. Iron Bioavailability and Pro-and Prebiotics.2011, Http://stud.epsilon.slu.se.
10Manner K, Simon O, Schlegel P. Effects of different iron, manganese, zinc and copper sources (sulphates, chelates, glycinates) on their bioavailability in early weaned piglets [J]. Tagung Schweine and geflugelemahrung, 2006:25-27.