Pre-Intestinal Destruction of Vitamin A by Ruminants Fed Nitrate

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Abstract
Pre-intestinal destruction of vitamin A was studied in steers and wethers fed high-roughage rations with and without 1% added potassium nitrate. Destruction was estimated by comparing administered ratios of chromic oxide and vitamin A with ratios in samples taken from permanent abomasal fistulas 24 hr. after treatment. Feeding potassium nitrate did not significantly alter apparent pre-intestinal destruction of vitamin A. Copyright © 1967. American Society of Animal Science . Copyright 1967 by American Society of Animal Science