Abstract
A study will be conducted with the objective of comparing the productive performance of Holstein cows in the middle third of lactation, kept confined in a free-stall system, submitted to two experimental treatments: T1 - Control (fine ground corn + soybean meal) and T2 - DDGS (ground corn + soybean meal + 17% DDGS), both diets with a 60:40 roughage:concentrate ratio. In order to evaluate …