ITEM Content Phosphate ≥18% Calcium ≥21% Fluorine ≤0.16% Arsenic ≤30ppm Lead ≤30ppm Size (pass 0.5mm mesh) ≥90% Size (pass 0.8mm mesh) ≥98ppm Auxiliary feed for livestock and especially used in layer feed and promix feed, poultry and aquatic animal. It can promote feed digestion, put on animal's weight, raise laying rate or producing milk rate, cure diseases such as rickets, osteomalacia and anaemia etc.