Oklahoma State Univ. researchers conducted a long-term study to evaluate the productivity of daughters of highly proven high and low Milk EPD Angus and Hereford sires. The high and low Milk EPD sires differed by 30.0 lb of Milk EPD. Total cow milk production from 37 to 205 days and 205-day calf weights were measured for 1,843 cow-calf pairs from 1991 to 2000. High milk EPD sired cows produced 237.0 lb more total milk than low milk EPD sired cows. High milk EPD sired cows weaned 30.4 lb heavier calves than low milk EPD sired cows. The authors concluded that Milk EPDs are accurate predictors of progeny performance in the Angus and Hereford breeds and can be used by producers as a tool in selection and culling programs in purebred and commercial beef herds to increase calf weaning weight (Bounds et al. 2004. Southern Section, ASAS, Abstract 21).