Author:
Fishwick G.,Parkins J. J.,Hemingway R. G.,Ritchie N. S.
Abstract
ABSTRACTPregnant beef cows were given 2 kg barley per day and oat strawad libitum. The digestibility of the organic matter of the diet was approximately 53% when urea included in the barley was given in one or four feeds per day. Supplementation of the barley with di-ureido isobutane improved the organic matter digestibility to 56·7%. When a solution containing urea, phosphorus, calcium and sodium was included in the straw the digestibility of the diet was 59·0%. These improved digestibilities were not associated with any differences in the concentrations of ammonia in the rumen liquor or blood of the cows.
Publisher
Cambridge University Press (CUP)
Subject
Animal Science and Zoology
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