If the mucus is at the very end of the poo, it's likely some anal gland emptying. If the mucus is around the whole poo, then it's more likely that the GI tract is irritated by something (like the food change or whatnot).
__________________ ~ A friend told me I was delusional. I nearly fell off my unicorn. ~ °¨¨¨°ºOº°¨¨¨° Ann | Pfeiffer | Marcel Verdel Purcell | Wylie | Artie °¨¨¨°ºOº°¨¨¨° |