i give my chins 1/2 teaspoon of a mix that includes oats every night, however; they only get like 2 or 3 oats in that mix. i alternate treats, so they get something different almost every night......one night pinch of oats, one night pinch of crushed rosehips, one night 1/2 shredded wheat, one night pumice stone, one night cardboard circle thingie, one night chin approved cookie, one night loofah (you get the hint).
but one thing they get and love every night is a stick of wood!