that does look like a usual type of spay though? Surely that is not "keyhole"?? Indy never wore a bustr collar, she felt sorry for herself for a day, and had to stay on lead for about a week-10 days-ish.. till the stitches came out.
Akita never wore a collar either, and as we lived on a (different) farm, she wasn't even kept on a lead, just left to wander about as she did every day