How about baytril used on a stud dog?

Experienced stud dog not interested in mating last two bitches. They were right in season.any idies what could be wrong with dog

Many stud dogs are put on Baytril to help their sperm count so it should not be an issue.

Have you collected and checked his sperm? Many times lack of sex drive can be an indicator that something else is going on with your boy. (assuming that you did progesterone testing and that the bitches were truly ready)