96 



Spears, J.W. 1991. Chelated trace minerals in ruminant 

 nutrition. Proc . 2nd Annu. Florida Ruminant Nutrition 

 Symposium. Jan. 23-24. pp. 1-13. Gainesville, FL . 



Spears, J.W., E.B. Kegley, and J.D. Ward. 1991. 

 Bioavailability of organic, inorganic trace minerals 

 explored. Feedstuffs 27 (47):12-20. 



Steel, L . , and R.J. Cousins. 1985. Kinetics of zinc 

 absorption by luminally and vascularly perfused rat 

 intestine. Am. J. Physiol. 248:G46-G53. 



Stuart, S.M., S.M. Ketelsen, CM. Weaver, and J.W. Erdman, Jr. 

 1986. Bioavailability of zinc to rats as affected by 

 protein source and previous dietary intake. J. Nutr. 

 116:1423-1431. 



Todd, W.R., C.A. Elvehjem, and E.B. Hart. 1934. Zinc in the 

 nutrition of the rat. Am. J. Physiol. 107:146-156. 



Turner, J.C., V. Shanks, P.J. Osborn, and S.M. Gower. 1987. 

 Copper absorption in sheep. Comp . Biochem. Physiol. Part 

 C 86:147-150. 



Vallee, B.L., and K.H. Falchuk. 1993. The biochemical basis 

 of zinc physiology. Physiol. Rev. 73:79-118. 



Vallee, B.L., and A. Galdes . 1984. The metallobiochemistry 

 of zinc enzymes. In: A. Meister (Ed.) Advances in 

 Enzymology. pp. 2 83-42 9. John Wiley and Sons, New York. 



van Dokkum, W. 1989. The significance of speciation for 

 predicting mineral bioavailability. In: D.A.T. 

 Southgate, I.T. Johnson, andG.R. Fenwick (Eds.) Nutrient 

 Availability: Chemical and Biological Aspects. pp. 89- 

 96. Royal Society of Chemistry, Cambridge. 



Vikbladh, I. 1950. Studies on zinc in blood. Scand. J. 

 Clin. Lab. Invest. 2:143-148. 



Vohra, P., and F.H. Kratzer. 1964. Influence of various 

 chelating agents on the availability of zinc. J. Nutr. 

 82:249-256. 



Waller, R.A., and D.B. Duncan. 1969. A Bayes rule for the 

 symmetric multiple comparison problem. J. Am. Stat. Ass. 

 64:1484-1503. 



Ward, J.D., J.W. Spears, and E.B. Kegley. 1992. Effect of 

 trace mineral source on mineral metabolism, performance 

 and immune response in stressed cattle. J. Anim. Sci . 

 70(Suppl. 1) :300 (Abstr. ) . 



