Magnesium Supplementation: Cattle are in most need of magnesium supplementation during Spring and Autumn months. Spring grass is typically fast growing and lush, however it usually contains high levels of potassium which reduces magnesium availability. Cattle must include magnesium in their diet in order to maintain normal blood magnesium levels during these risk periods, magnesium salts are a way of providing a source of magnesium, but they are bitter and not readily taken by cattle. Crystalyx Cattle High-Mag however provides a highly palatable form of magnesium that is readily available with every lick that the cow takes. Research at Glasgow University (School of Veterinary Medicine) has confirmed that the high digestibility and availability of the magnesium sources used in Crystalyx Cattle High-Mag ensures that normal blood magnesium levels are maintained when target intakes are achieved. Costing between 15p and 23p per day, Crystalyx Cattle High-Mag is convenient and economical to use.