46.

Forbes RM. Excretory patterns and bone deposition of zinc, calcium, and magnesium in the rat as influenced by zinc deficiency, EDTA, and lactose. J Nutr. 1961; 74:194-200. (CA59:7921b) [Inclusion of 25% of lactose at the expense of glucose in the isolated soybean protein diet was accompanied by decreased wt. gain, increased absorption, urinary excretion, and balance of Ca, increased urinary excretion and decreased balance of Mg, and increased Zn conc. in the femur. Addns. of Zn stimulated wt. gain and total Zn absorbed and retained (although the percentage was decreased), and increased Zn concn. in the femur. Addn. of EDTA increased wt. gain, Zn absorption and retention, and concn. of Zn in the femur. At an environmental temp. of 5° the percentage retentions of Ca and of Mg were below those obtained at a temp. of 27°. The effect of EDTA in stimulating Zn absorption decreased as a result of an increased Zn absorption from the basal diet as animals remained on expt. longer.]

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