The stability of vitamin A in synthetic vitamin A concentrates (acetate or palmitate). I. In phosphatic stock licks with and without trace elements

Abstract

Stabilised synthetic Vitamin A, either as acetate or palmitate encapsulated in gelatin was incorporated in mineral-rich phosphatic licks and exposed to hot, humid atmospheric conditions which at times prevail in the summer rainfall area of South Africa. The loss of Vitamin A potency under these experimental conditions led to the conclusion that the feeding of stabilised Vitamin A incorporated in licks fed to range animals is unpractical.