Well, actually, if you do the math, that 10% bone is perfect for a growing large breed pup, though you want to try to avoid going over that for extended periods as it is on the upper range of the appropriate amount.
Infact, lets do the math.....
Lets take Apollo for example.
Expected adult weight 135lbs
2.5% for daily intake is 3.375lbs so .33lb bone and .33lb organ so 2.7lbs meat.
Or since the USDA site works in grams: 1530.87grams total daily, 149.6g bone, 149.6g organ 1231.67 meat.
Chicken drumsticks After running around in circles I finally figured out that the info on the USDA site is for boneless drumsticks (ie: the edible part), So, my local grocery has 1lb (approx) packages of bone in drums 5 per package, this means each drum is about 3.2ounces or 90.7g. As a general rule drums run about 30% bone so I need to feed 5 (give or take) to make up enough bone. Bone is about 19% calcium so 150g of bone means 28.5g plus another 40mg from the meat. Protein 70.8g (approx, there'd be some from the bone too and I don't have those numbers off the top of my head)
Beef liver, 74.8g daily. 15.2g protein, 10mg calcium.
Beef kidney, 74.8g daily. 13g protein, 10mg calcium
Beef, 928g daily. 192g protein, 46mg calcium
So, for a total daily intake of 1530.8g, 291g protein (19%), 28.6g of calcium (1.8%).
Yup, right where it should be.....
I'm not saying that raw is the perfect diet for all growing pups, every dog is different and the individual's growth has to be monitored to be sure that the animal is getting the right amounts of everything. But its by no means a bad diet for these pups, and when done correctly it can be a very good diet for them.