For what it's worth, my grandfather and dad raised registered Angus through the late 30's until about 1968. On more than one occasion, I remember dad talking about having a calf that looked exactly like a deer. He thought a buck sired the calf. Some of the cows were in a wooded area that had a number of deer. The calves didn't live. But, my point is, that's been 45 years ago. Dad is still alive but I'm sure he wouldn't remember the blood lines he used.