We have a pure Charolais heifer, about 15 months old, who got in heat for the first time yesterday. Our friends have told us to look for a small bull to throw on her so she won't have problems giving birth. What do y'all think we should do? I wanted to find Charolais bull for her but now it doesn't seem like the best idea in the world. She was about 80lbs when she was born.