I think you only need 4 tablespoons of bonemeal per http://www.catnutrition.org/recipes.html and it calls for 2 tablespoons gelatin (to make up for no cartilage/joints?).
for healthy kitties:
4lbs ground meat without bone
7oz chicken livers
200mg vitamin b complex
800iu vitamin e
6000mg taurine
5000mg fish oil
4 egg yolks
5tbsp bone meal
2c water
maybe some pumpkin?
For both recipes you need to add the appropriate amount of Lite salt with iodine...unless I missed something like a thyroid condition?