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Factors Influencing the Utilization of Carotene for Storage of Vitamin a in the Rat

Department of Nutrition, University of Arizona, Tucson

The size of the rats used as experimental animals markedly influenced the utilization of carotene for liver storage of vitamin A. When 60 µg of the beta-carotene equivalent were fed, the combined liver and kidney storage of vitamin A was higher in three groups of rats averaging 44 to 50 gm than it was in three groups of rats averaging 99 to 103 gm. The amount of basal diet consumed had no effect on the vitamin storage.