On the one that I raised, the body resembled a BB body much more than it did a heritage body and was nearly the same weight at the same age as the BBs I raised.
BB turkey hens can be successfully fertilized by heritage turkey toms. There are also known cases of successful matings between BB hens and yearling BB toms. Those cases are rare and the BB varieties are commercially reproduced using artificial insemination. My cross of a Bourbon Red tom on a...