I do think I see horse meet there, though Oblivion had beef and ham despite their not being a single cow or pig in the game, so I wouldn't say it's definite proof, but it does seem highly likely, even without this image.
The question is, which (if any) are ridable?
I bet dogs are ridable, and horkers, especially horkers.
But actually, my guess is only horses are ridable, like in Oblivion, the others are animals that either are domesticated for purposes other than riding or aren't domesticated at all, in any case, having horses and not being able to ride them would seem kind of pointless.