I have seen alot of nice Mossy OakXCHarolais calves in the show ring and in the pasture as momma cows. There is even a stud out that is his son, smoking oak.
We see it in the Dairy all the time, It could just be a bruise, or maybe even just the strain of milk in the bag if she is a first lactation heifer, the best thing for it is for the calf to keep nursing and it will massage it out and the milk should clear up.
yea she is black, she is a nice cow and very correct but could use some bone and hair and she doesnt have any Charolais in her pedigree. Ill look for that bull to see if i can find semen.