If you can't get the FOR-BID you can feed him pumpkin, mix it in with his regular food. This will makes his poop taste well.
Another problems might be that if your feeding him wet food (canned) their body doesn't absorb much of this, there aren't many nutrients in it so when your pup poops, it still has "yummy" food bits in it.
That is if you're feeding wet/canned food.
