First of all black is 99.9999% dominant over red.I would like someone explain how a Reg. Angus bull can produce horns and spots. Are the LH genes different from known beef genes?
However certain alleles (specific genes) effect coloration and horns.
Horns are a “wild” gene cannot recall exact terminology linked back to Spanish cattle believe pajuna and tudenca in longhorns. Also some Indica breeds
coloration is actually interesting. With experience and certain Longhorn specific genetic markers you can tell what they will throw with X Bull most of the time.
Anything Black especially you have the odd anomaly with colouring. I believe this is due to changes in the breed from what it was to what it is. Meaning black angus was originally quite small look darn near like what we call a dexter currently now they have 6-800 pound more mature weight so there are obviously Foreign genes in there.
I believe problem breeding a black angus which in my opinion is now genetically a mutt to old longhorn genetics is same as breeding a grade quarter horse to an Arabian and registering a paint. Red cattle have older dominant genes as they largely are not interfered with as much.
this coming breeding year I am going red and every single animal is getting a full DNA test. The red bulls are coming from reputable breeders and 18 are actually AI