A commercial cow-calf producer wishes to calculate within-herd weaning weight EBV for his herd bulls. His senior herd sire BullA has sired four calf crops, and his 52 progeny average 11 pounds heavier than their contemporary group mates. The first 12 calves by his young sire BullB were just weaned, and they averaged 15 pounds heavier than their contemporary group mates. He just purchased a yearling bull, BullC, with no progeny, but who (himself) weighed 55 pounds heavier than his contemporary group average. Assume heritability of weaning weight is 0.30 for this breed.

Calculate weaning weight EBV and accuracy for each bull.

Which sire would you expect to sire the heaviest calves in the future? Why?