>>14513
Slowly groom him into it. Start with anthros with animal genitals then slowly introduce more and more feral concepts. Throw in some Pokemon too. Pokemon is a gateway for so many zoos.
I don't know how against it he is but you can start with talking animals since that creates a disconnect from barking animals.
Anthro on feral, anthro on pokemon stuff like that.
Over time it'll get more normalised and if he's weakbrained enough you'll be able to feed him realistic feral and from there it's an easy way home.
Also use toys. Knotty dildos, horse dildos, stuff like that. Start with pastel colored ones so they're disconnected a bit from the real thing, then move on to the realistic ones.
All the while you can just casually call him a filthy dogfucker, compare him to animals, things of that nature. Degrading him with zooey things will make him associate the two and would hopefully turn his wrath towards us into a more positive emotion.
And get yourself a dog when you've converted him ;)