Performance Cubes are designed to be added to a TopSpec feed balancer or supplement and therefore contain no added vitamins or trace-elements. They are a blend of straight raw materials rather than a complete feed. These performance feeds have been supplemented with the major minerals calcium, sodium and magnesium. Feeding Performance Cubes instead of cooked barley/sugar beet/oats/alfalfa to working horses reduces or eliminates the need to add salt. These horse performance feeds are formulated without the use of any cereal-grains, making them completely cereal-grain-free. They have a good energy level of 12.5MJ/kg, equivalent to most cereal-containing compound feeds designed to support hard work. The formula is low in starch and sugar and high in good quality protein and fibre. The highly digestible fibre in these horse cubes helps to promote the beneficial bacteria in the hindgut, therefore helping to maintain a healthy digestive system.