Calcium and Phosporus are the most important mineral required for milking animals, for every litre of milk produced, the cow / buffalo loses 1.2 gm of calcium & 0.9 gm of phosphorus. After derlivery minerals requirement is very high specially calcium and Phosporus because animals start producing 1st milk i.e Colustrum. Calcium and Phosphorus involved in many function like milk production, muscle movement, bone strength etc.