Limestone granules ( feed grade) is used as a reliable source of essential mineral like calcium for pigs, cattle and poultry. Calcium and other minerals present in the granules of limestone are effective in boosting physical growth and overall well being of livestock. Besides these, offered limestone granules ( feed grade) is also used for controlling ph value of livestock water. It is utilized as a calcium supplement for horses. Calcium present in this feed grade granules plays significant role in strengthening bones and in boosting egg productivity in poultry. Granules of limestone can also be used to formulate pet food products.