What is the right age to breed a young bull,? And what should a bull @ 12-14 months of age weigh.? Angus. I'm looking into buying a young bull for my (3) 14 month old Angus & Brangus heifers. one is already bred. The other 2 are ready But i'd like to hold off till the bull becomes of age, as long as i can, for a late spring calf. Am i thinkin right or should i hld till May/June to breed them? :cowboy: