Concentrate mixture for calves with 18% of protein. This feed contains ingredients such as: crude protein 18%, crude oil 3.5%, crude fiber 4.8%, crude ash 6.5% , Ca 0.9%, P 0.6%, Na 0.2%. It also contains: Vitamin A, Vitamin D3, Vitamin E. Rich in many minerals such as: Fe 45 mg, Cu 12 mg, Mn 40 mg, Zn 50 mg and Se 0.15 mg. This feed is used to feed calves up to 120 kg live weight. It is given at will. This concentrate can be given starting from 7 days of calf age together with milk or milk replacer. After 6 weeks of age, calves can be fed quality hay. Calves must have fresh drinking water available at all times.