Spillers Racehorse Cubes are suitable for horses in hard work. Contains high quality cereals and soya oil for a concentrated energy source. Contains high levels of quality protein to support muscle health and topline. Spillers Racehorse Cubes contains: Digestible Energy 12.2MJ/kg Oil 6% Protein 14% Fibre 10% Starch 28% Vitamin A 11,000iu/kg Vitamin D 1,100iu/kg Vitamin E 400iu/kg Selenium 0.3mg/kg Copper 25mg/kg Zinc 125mg/kg