dewclaws, do they have hair that stands straight up on end between the dewclaws,
tail switch, do they have a smaller switch,
ears, lots of long hair coming out of their ears.
of course genetics, and environment, if theyve been under fans or in a cooler for a while and they still dont have hair, or if theyre not really under fans and they got hair.
also sometimes their legs have quite a bit of hair, the leg hair usually doesnt get lost, unless theyve been in cooler and they won't be when u get them home.
also can u look at their momma. thats part of the genetics. we got one cow that looks like she has a horse forlock on her head, she also has hair legs, her calf his super hairy, and hasnt been under fans at all.
altho another cow, has no hair, and she is nothing special at all but she throws super hairy, thick, feminine, and sound calves every yr.