Abstract
1. Five radioactive calcium salts, mixed with normal rats ration, were administered to rats research the availability of these calcium. After 3 days of feeding with those rations, radioassay values were obtained with one side of the femurs of those experimental rats.
2. Carbonate and Lactate were found to be the most effective salt for the deposition of Ca on femurs, and the efficiency of phosphate and phytate was aproximately half times of above two salts, while little effect with oxalate.
3. These findings suggested that calcium carbonate and lactate were the most suitable materials for the preparation of enriched foods on calcium.
