AN APPLICATION OF THE PAIRED FEEDING METHOD TO THE QUANTITATIVE ESTIMATION OF THE RELATIVE VITAMIN A CONTENTS OF FOODS AND ARTIFICIAL CONCENTRATES

31 May 1933

journal article
research article
Published by American Physiological Society in American Journal of Physiology-Legacy Content

Vol. 104 (3) , 608-614
https://doi.org/10.1152/ajplegacy.1933.104.3.608

Abstract

This method is similar in principle to the one developed by H. H. Mitchell (Ibid. 104(3): 594-607) with reference to vitamin B. Application of this method to a definite sample of but-terfat, prepared from milk collected from stall-fed Guernsey cows, showed that 4.0 to 4.5% was required for maximum growth.

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