Though there are many Angus bulls with good, natural thickness, many of the big-butted bulls I see (and that includes Angus, Herefords, as well as the occasional Simmental, Gelbvieh, and Limousin) have their thickness "fed on" rather than "bred on."
I've attended some bull sales where the bulls are developed on grass with limited or minimal grain. It is amazing how much difference in natural muscling there is amongst buls, and even amongst breeds.
I've attended some bull sales where the bulls are developed on grass with limited or minimal grain. It is amazing how much difference in natural muscling there is amongst buls, and even amongst breeds.