try e-bay or just buy mince from any pet shop.they come is packs of lamb,beef,chickin,tripe and some come with organ meat make sure you feed some vegetables put them though the blender first and add some vitamins also dont forget lots of raw meaty bones. my dogs love the chickin frames if you have problems with them try putting sunflower oil over them bet they will eat them.have a search on the web for natural nutrition for dogs