The carotene content of some South African feeds

Abstract

1.Details are given of the method employed at this Institute for the determination of Carotene in some animal foodstuffs. 2. The Carotene content of pasture diminishes rapidly as the pasture matures and becomes dry during winter or during dry periods of drought. 3. The Carotene content of the Cereals included in the determinations is low, yellow maize being the highest and the sample in question containing 0·74 mgms. Carotene per 100 gms. dry material. 4. The existence of an A-avitaminosis in stock entirely dependent on natural pastures during periods, when only dry pasture exists, is discussed.