Our retired vet friend stuffs the holes with some gauze and iodine when he does the dairy animals that I get sometimes that are older. Also did a 4 yr old hol/jer nurse cow that decided to be a b*** with her horns on a younger cow. He took baling twine, tied it around the horns at the base as tight as he could get it, took them off, them pulled the bleeders? out , then stuffed the gauze in it, put iodine on it, told me to leave the baling string on for 1-2 days and watch for infection. I sprayed with bluecoat spray to discourage screw-worms, cut the baling string off and the gauze came out on it's own about a week-10 days later. Assume the baling string cuts the circulation/bleeding way back. Also, we never do them until the last quarter of the moon, and not until fly season is pretty much over...like late oct/nov or before the first of april. I also give them an antibiotic shot when I take the baling twine off in case of infection and in case I can't get them in for a couple of days.