2Davis M E, Brown D C, Maxwell C V, et ol. Effect of phosphorylated mannans and pharmacological additions of zinc oxide on growth and immunocompetence of weanling pigs[J]. J Anita Sei, 2004, 82(2): 581-587.
3Roselli M, Finamore A, Garaguso I. Zinc oxide protects cultured enterocytes from the damage induced by Eseheriehia coli[J]. J Nutr, 2003, 133: 4077-4082.
4Sawai J. Quantitative evaluation of antibacterial activities of metallic oxide powders (ZnO, MgO and CaO) by conductimetric assays[J]. J Microbiol Methods, 2003, 54: 177-182.
5Jensen-Waern M, Melin L, Lindberg R. Dietary zinc oxide in weaned pigs effects on performance, tissue concentrations, morphology, neutrophil functions and faecal microflora[J]. Res Vet Sci, 1998, 64: 225-231.
6Hill G M, Cromwell G L. Growth promotion effects and plasma change from feeding high dietary, concentrations of zinc and copper to weanling pigs[J]. J Anita Sci, 2000, 78: 1010-1016.
