CowCal utilises 'Advanced Matrix Bolus Technology' to supply much needed calcium to your fresh calved cow when blood calcium levels are at their very lowest and help to prevent milk fever or hypocalcaemia. Combination of 3 separate calcium sources, each with different release rates – dissolving both rapidly and a slow sustained release into the blood. Large quantity of available calcium (47 grams) Vitamin D3 which facilitates the absorption of calcium Magnesium to increase the absorption of vitamin D3 Helps to protect the liver and boost Rumen activity Increase of glycaemia during calving (glucose in the blood) CowCal utilises 'Advanced Matrix Bolus Technology' to supply much needed calcium to your fresh calved cow when blood calcium levels are at their very lowest and help to prevent milk fever or hypocalcaemia. Combination of 3 separate calcium sources, each with different release rates – dissolving both rapidly and a slow sustained release into the blood. Large quantity of available calcium (47 grams) Vitamin D3 which facilitates the absorption of calcium Magnesium to increase the absorption of vitamin D3 Helps to protect the liver and boost Rumen activity Increase of glycaemia during calving (glucose in the blood)