Crude protein ?50% Phosphor ?4% Calcium ?8% Ash ?33% Moisture ?10% Advantages Meat and Bone meal is a mixture of crushed and coarsely ground bones and meat that is used on animal feed. As a slow-release fertilizer, bone meal is primary used as a source of phosphorus.Its saves the use of more expensive proteins like Soya bean meal and Corn by-products (gluten meal), As a result of its high level of essential aminoacids of good digestibility the compound feed containing it, has a higher yielding and is cheaper than the ones deprived of it.