5Wedekind k J.Hortin A E.Baker D H. Memodology for assessing zinc bioavailability:Efficacy estimates for zinc-methionine,zinc suffate,and zinc oxide[J].Anim. Sci., 1992(70): 178-185
4Ammerman C B, Luo X G. Iron-methionine complex and feed grade ferrous sulfate sources of dietary iron for chicks[J]. Journal of Animal Science, 1996, 74(suppl. 1 ): 8-13.
5Greger J L. Using animals to assess bioavallability of minerals implication for human[J]. JNutr, 1992, 122: 2 047-2 052.
6Kuznetsov S G. Biological availability of iron from different chemical compounds for piglets[J]. Soviet Agricultural Science, 1987 (12): 32-36.
7Galdi M, Bassi A. Ferric glycinate iron bioavailability determined by hemoglobin regeneration method[J], Nutrition reports international, 1988, 37 (3): 591-597.
8Spears J W, Schoenherr W D. Efficacy of iron methionine as a source of iron for nursing pigs[J]. J Anita science,1992, 70 (suppl.1): 243.
9Cao J, Luo X G. Effect of dietary iron concentration, age, and length of iron feeding on feed intake and tissue iron concentration of broiler chicks for use as a bioassay of supplemental iron sources[J]. Poultry Science, 1996, 75: 495-504.
10Lewis A J, Miller P S. Bioavailability of iron in iron methionine for weaning pigs[J]. J Anim Sci, 1995, 73 (suppl.1): 172.