食餌性亜鉛の利用性に対するカルシウムの効果

概要

論文の詳細を見る
We performed an animal experiment for 22 days, rats feeding one of four test diets which were only different in calcium content varying from 0.2% to 1.1%, containing no phytic acid, and estimated the influence of dietary Ca level on the bioavailability of zinc which were contained at marginal level in the diets. The apparent absorption of dietary Zn was decreased with Ca content in the diets. Zn concentration did not change in liver and kidney when dietary Ca level was increased. Total Zn in tibias was not affected by an increase of Ca content in the diets. It is suggested that dietary Ca level is little influence on the availability of Zn when phytic acid is not included in the diets. The metabolism of iron seemed to be affected by dietary Ca level. Low apparent absorption of Zn in rat groups fed high Ca diets might be attributed to the increase of excretion of endogenous Zn into feces.
金城学院大学の論文
1986-03-20