Effect of diets containing rapeseed meal or soybean meal on lactating Holstein cow responses

Abstract

Rapeseed meal (RSM) is becoming an increasingly important source of protein for ruminants and nonruminants in the world. In some studies, inclusion of RSM instead of other protein sources such as SBM in dairy cow diets caused to increase milk production (Emanuelson, 1994). There was a positive association between the milk protein content and content of RSM in the ration (Emanuelson et al., 1993). Present experiment was carried out to evaluate the effect of inclusion of RSM or SBM in a basal diet on the responses of lactating Holstien dairy cows.