There is a variation in the digestibility of protein in the various
concentrates fed to livestock. It has been shown that the digestibility
of nutrients in a ration with a mixture of protein concentrates is closely
related to the proportion of the various protein sources in the ration.
However, opinions differ on the effect of single and mixed proteins
upon the digestibility of protein and other nutrients in the ration of
cattle and sheep. This preliminary study was to evaluate further the
nutritive value of single and mixed protein concentrates in the lambs'
ration.