Effects of Chromium on Energy Metabolism in Lambs Fed with Different Dietary Protein Levels (Report‪)‬

INTRODUCTION Trivalent chromium (Cr) is an essential active component of glucose tolerance factor (GTF). It exerts its biological function at low concentrations in humans and animals primarily by increasing sensitivity to insulin and by improving glucose metabolism (Mertz et al., 1963; Anderson et al., 1998). The targets of Cr may also involve lipids and cholesterol, which interact with the effects of Cr on insulin signals (Brautigan et al., 2006; Pattar et al., 2006). Previous research had indicated that Cr effects might have some correlations with biological energy metabolism, but conclusive evidence for this is still lacking.