Vigortone Kalf 34% KA2404R Medicated contains calcium necessary for strong bone development and other body functions. Phosphorus is necessary for optimum energy utilization, reproductive performance, and fiber digestion. Kalf 34% KA2404R also contains magnesium and a specially formulated blend of trace minerals including cobalt, copper, iodine, iron, manganese, selenium, and zinc. These trace minerals play vital roles in body metabolism and are necessary to build and maintain an active immune system, healthy tissues, and overall animal health. Vitamins A, D, and E play key roles in the maintenance of optimum health, growth, and reproductive performance. In adult cows B vitamins are manufactured through rumen fermentation; however, the rumen is still developing in the calf, so B vitamins are added to Kalf 34% KA2404R. Three protein sources are included to provide the optimum amino acid nutrition.