YMCP Cow Fresh Paste contains live yeast to support rumen function. High levels of Yeast, Magnesium, Calcium, Potassium, and Niacin. Contains four types of calcium (calcium lactate, tricalcium phosphate, calcium propionate, calcium carbonate). Contains calcium, derived from four different sources, including highly palatable and easy-to-absorb milk calcium which supports muscle tone of the uterus. Magnesium is added to help the body absorb calcium. Added potassium which is essential for energy metabolism and maintaining normal feed utilization. 375 GM Tube.