A:   Heifer bull would imply that this bull could be used to breed to heifers. What that means, is that he is genetically designed to sire light birth weight calves. The group of females in a cow herd that experience the most calving difficulty are heifers during their first calving. The biggest cause for calving difficulty is calf birth weight. Understanding both dam and sire contribute to the genetic make-up of the calf, if you can assure that you have some control over the weight of calf expected from the sire side, it is a excellent way to manage around calving difficulty. Declaring a bull to be a heifer bull should mean more than the bull himself having a light birth weight at calving. To me it means that there is support on both the bull's parents, grandparents, etc. that he is truely a calving ease or heifer bull. Reporting the bull's Expected Progeny Difference (EPD) would help you as a buyer determine that by looking at the EPD for birth weight, Calving Ease Direct and Calving Ease Maternal and by knowing what breed average for each of these traits are. These traits are reported with an accuracy and the high the accuracy, the more confidence in the estimate reported. All beef breed sire summaries report these averages.