Spillers HDF Power Cubes are suitable for horses in hard work. Power Cubes contain high digestible fibre, oil and controlled starch to provide an ideal balance of energy sources to support sustained control and power. They also contain high levels of quality protein to support muscle health and topline. Spillers HDF Power Cubes contains: Digestible Energy 12.7MJ/kg Oil 6.25% Protein 14% Fibre 14% Starch 20% Vitamin A 11,000iu/kg Vitamin D 1,100iu/kg Vitamin E 400iu/kg Selenium 0.3mg/kg Copper 25mg/kg Zinc 125mg/kg