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The effect of abomasal infusion of urea on nitrogen retention in goats
Published online by Cambridge University Press: 27 March 2009
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There is evidence that a large volume of saliva containing a significant quantity of urea is poured into the rumen, and also that blood urea is diffused into the rumen through the ruminal epithelium (Houpt, 1959; Weston & Hogan, 1967). Egan (1965) reported that, with sheep fed a low protein cereal hay, cellulose digestion in the rumen was increased by abomasal urea infusion. Furthermore, the utilization of recycled urea nitrogen has been investigated in sheep (McIntyre, 1971) and cattle (Vercoe, 1969) using the intraruminal and intravenous infusion techniques. The objective of the present experiment was to determine whether or not the abomasal administration of urea to adult goats fed a low quality hay would influence the nitrogen retention in the body.
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