Even though former foodstuffs may have lost their value on the human consumption market, due to for example production errors, their nutritional value for animal feed purposes is not at all affected. Former foodstuffs are thus by no means a waste product and should be considered a valuable resource in animal nutrition.
Former foodstuffs like bread, biscuits, chocolate bars and crisps are chosen for their high energy content in the form of sugar, starch or oil. The use of processed former foodstuffs, generally called biscuit meal, in compound feed allows the replacement of other raw materials generally used in feed diets for their energy content. As can be seen in the table below, a typical feed formulation for pigs on an 88% dry matter basis is at least nutritionally equivalent to barley and wheat.