You don't quite use everything....
Ideally...you would feed 75% meat(5-10%of that organs, green tripe, heart, kidneys, liver) and the rest of the diet divided between veggie/fruit mix and raw meaty bones...necks, ribs, etc.
Then there are recreational bones....hocks, marrow bones, etc.....I tend to rarely give these as they can fracture/break teeth....but my dogs LOVE them.

Cheers,
Alisha