Utah State University Extension
Research has shown that as a cow’s mature weight increases, feed efficiency decreases, as well as reproductive efficiency and other production factors. The purpose of this fact sheet is to illustrate the differences economically between three different cow weights (1,000 lbs., 1,200 lbs. and 1,400 lbs.) on three different resource bases.
Russell, Jesse and Feuz, Dillon, "The Optimal Cow Size for Intermountain Cow-Calf Operations" (2015). All Current Publications. Paper 706.