I've had some experience with male and a little bit of experience with female canines, would be down to have some more experience giving or receiving. Not quite sure I'd give anal to a dog though, to each their own of course but I don't want to make them uncomfortable or cause potential issues.
My doggo and hubby (separately, not together) love to give it to me and I love to receive, but I absolutely love to give my mouth to them and they both love it, although I think my hubs loves it more then my doggo!!