CALCIUM CARBONATE ( GRIT ) We are leading manufacturers, supplyers, exporters and wholesaler's of CALCIUM CARBONATE ( GRIT ). Calcium is the essential mineral.This wonder nutrient promotes bone structure and density, resulting in strong and healthy skeletal development. It improves heart function and blood circulation. It increases enzyme activation and boosts neuromuscular action. Mix Calcium Carbonate Poultry Grit into your livestock, poultry and feeds, and you instantly enhance the nutrition.This ensures that the vital nutrients are distributed more evenly throughout the feed while you mix it.