with my boy (aka mister fragile-gut), he often had diarhhea and mucousy stools, NOW i know it was all MY fault for not feeding him correctly from the beginning (too much variety too soon, too many veggies, too many supplements, etc). with my girl, from day 1 we switched her cold-turkey from cheap kibble to prey-model raw and not ONE single soft poop. no gas. perfection all the way
so know your dog's gut (iron stomach, fragile, or somewhere in between), forget BARF and go for prey-model raw, go slloooowwwwly and everything will be fine!