Get down butchers and fishmongers ask for the waste pay if ya have to get lamb ribs, pigs trotters,fatty beef trimmings, chicken carcuss, salmon heads fresh tuna etc coupled with a couple slices brown bread is what mine get last few months used to mix the meat and fish with Australian formula greyhound food but they seemed to start getting the shits when on it even when only fed as 25 of the diet switched to brown bread n pasta mixed with it instead much better no problems ?