Effect of solid feed level and types of roughage on passage kinetics of milk replacer, concentrate, and roughage in veal calves

Authors: Sanne van Gastelen, Annemarie JW Mens, Gisabeth P Binnendijk, Jennifer L Ellis, Christopher D Powell, Walter JJ Gerrits

Publication Date: 2021/7/1

This study aimed (1) to provide estimates of total mean retention times of milk replacer (MR), concentrates, and roughage in veal calves fed a mixed diet; (2) to determine the effect of level and type of solid feed (SF) on passage kinetics of MR, concentrates, and roughages in veal calves; and (3) to compare passage kinetics in veal calves using the fecal excretion curves of indigestible markers and a noninvasive ¹³C tracer breath test approach to determine whether the latter technique can serve as an alternative. 

Read it here: https://www.sciencedirect.com/science/article/pii/S0022030221005464