
I have heard that advice before, to mate on the next season after an episode of Pyometra. So it's not unusual, but it's possible that it could be old fashioned outdated advice, because it's something I have known for many years. Of course it maybe isn't cut and dried when the bitch is so young though. I'd have thought a course of prophylactic anti-biotic therapy might have been an option here, to allow her to wait longer.
Dawn R.