Hello,
I feed my Black Throat on the SDZTD exclusively, after research and referrals from well-known breeders. He has continued to grow substantially and eats it readily. I feed at his schedule, when he's still really full from eating I hold off until he's ready. He has a healthy fat store in the tail base and is in great health. In the last batch I did add milk and two eggs and increased the multi-vitamin to a full crushed tablet instead of half.
As far as the bone meal is concerned, I had a health food store order some for me. It was around $9.00 for an 8 ounce container. The manufacturer is KAL and they have been making dietary supplements since 1932. It is pure bone meal that has been sterilized. You can probably get it from Vitaminshoppe.com. This maker does not have B-12 in their product. Here's a listing of the ingredients:
Calcium(from bone meal)
Iron(from bone meal)
Phosphorous(from bone meal)
Magnesium(from bone meal
Zinc(from bone meal)
Copper(from bone meal)
Fluoride(from bone meal)
No added yeast, wheat, corn, milk, egg, soy, glutens, sugar, artificial coloring, starch or preservatives.