> . Can they still be mated after the bleeding has stopped?
This is the stage they are normally ready for mating, though some bleed throughout the 3 weeks or so.
If you have males around I would avoid contact for 4 weeks. I certainly know of bitches mated at 23 and 25 days and getting pregnant.
As for male reaction a lot depends on his experience. Some pester for ages after as they are clueless/desperate.
The season is over when the vulva looks closed and has shrunk down again to the pre season size.
It is a good idea to give her a bath after her season has finished to take away lingering female scent.