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Inasmuch as the newborn calf usually is deficient in vitamins A and D, and colostrum supplies variable amounts of these essentials, it has been suggested that a massive dose of these vitamins at birth might be beneficial to the young calf. Hibbs and Krauss (6) have shown that feeding large amounts of vitamin A on the third and tenth day of age maintained higherthan-normal blood plasma levels and liver storage of vitamin A for a period of 30 days.
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Eaton et al. (1947) studied this question.
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