When you talk with the NPC next to the pig, he tells you since he gave it Rotten Sausage he beg for it every day so it's the first thing I tried.Thank you so much man, that was obscure af. I gave the pig other food (like jerky lol), and I just got fur. When I give it the Rotten Sausage I get Dried Straw, and that is what worked. How the hell did you figure that out? Or was it just lol like me, and you fed the pig pig?