Cat poop is very high in protein, since their food has more protein than dog food and they don't digest all of it. That's the attraction. That and the resemblance to snausages...
When I lived in Walnut, CA, I lived on a horse acreage. No horses for me. Way too much work. But my neighbor had two horses. Over the fence she would throw my dogs (the Great Dane) and Docker horse poop. Now, that was a treat. Then every six weeks she would have the horses' hooves clipped, and those got thrown over the fence, too. My dogs loved her.
SG, still looking for my new puppies. There doesn't seem to be a lot around here. Might have to go to San Fran or NY or something. LOL!
Sooo nasty! But you are right about the protein.