relative importance when distillers grains are used for
N supplementation of cattle.
Little work has quantified urea recycling in cattle fed
high-concentrate diets. The goal of our study was to
better predict the amount of N recycled by growing
cattle fed corn-based diets supplemented with distillers
dried grains with solubles (DDGS) or urea and to
quantify the use of recycled N by ruminal microbes.