Heifer Selection By The Numbers
Dr. Ken McMillan
DTN
For this discussion, I will assume all the heifers are by one bull and not discuss how multiple sires might factor into your selection decision. I will remind you that 50% of the genetics comes from the bull side, and bull selection is your most significant path to cow herd improvement. The bull has 25 to 30 times the significance of a single cow.
The Beef Blog 