
Wel not that many are but there is no room for complacency judging by those that have been. All dogs in my view should be hip scored as some that you would never suspect can have pr3etty high scores.
I'm confused though if the bitch isn't in season why do you think the dog isn't interested. A dog should only be interested in bitches to any more than a polite extent if they are in season. In fact the silly ones that pester all bitches are rarely useful stud dogs.
When I ahve had stud dogs and bitches staying ehre for mating the studs show very little interest in the bitch, other than checking out her wee, and a quick sniff in the morning, until she is ready for mating.