cloverFDX's post reminded me about flyball days lol, on sundays they dont eat breaky at all, last time we tried that they all ended up sick at practice. and during flyball tourny weekends they get no breaky, and supper at night when we come home, or if its an out of towner then they get fed outside at the motel :p and we dont measure their food, we just eye it, like "this bone looks happy size" kinda thing.