Mine kind of get picky at times too, especially our standard one. One day he will eat everything put in front of him, and the next day..turn his nose up. I did have a mini hinny who loved his beet pulp, and then he refused to eat it for about 3 days, when he did eat it..he acted really strange, like he was going to colic or something. He never did, and his poop was normal, but it was wierd on how he acted. I even walked him to make sure he was Ok, nothing ever bacame of it and now he is back to eating his grain/beet pulp "sloppy" mess, and he LOVES it. Corinne