Effect of Increasing Monensin Concentration on the Performance of Lactating Dairy Cows Fed Contemporary Diets

Abstract

This paper discusses a recent study conducted to evaluate a dose titration of Rumensin on high producing lactating cattle. Four levels of Rumensin were fed and milk yield, milk composition, feed efficiency and overall performance were evaluated and will be discussed. The treatment diet was formulated using our accumulated knowledge over the last few years about amino acid requirements and feeding for optimal components and the observed milk components reflected this formulation approach and were enhanced by Rumensin.