J. Hermann et al., EFFECTS OF DIETARY CHROMIUM, COPPER AND ZINC ON PLASMA-LIPID CONCENTRATIONS IN MALE JAPANESE-QUAIL, Nutrition research, 18(6), 1998, pp. 1017-1027
The effects of dietary chromium, copper and zinc on plasma lipids were
evaluated in male Japanese quail, Coturnix coturnix japonica, using a
three-factor response surface design. Quail were randomly assigned to
one of fifteen experimental diets containing variable concentrations
of chromium (71 to 1124 ng/g diet), copper (1.6 to 8.3 mu g/g diet), a
nd zinc (11 to 51 mu g/g diet). After six weeks, blood samples were ob
tained by cardiac puncture for plasma lipid analyses. No significant e
ffect on plasma total cholesterol concentration was observed for the m
ineral ranges studied. Plasma HDL-cholesterol concentration was signif
icantly affected by the interaction between dietary copper and chromiu
m. In addition, plasma triglyceride concentration was significantly af
fected by the interaction between dietary copper and chromium and the
interaction between dietary copper and zinc. (C) 1998 Elsevier Science
Inc.