There is an acute shortage of conventional feedstuffs for livestock feeding. The big feed gap between the requirements and the available sources forced the planners and nutritionists to look for non - conventional resources where there is no competition with humans, such as agro-industrial by-products which available. Wasted date and date by-products are promising non-traditional carbohydrate sources in animal nutrition. This book explains how to use leftover manufacturing dates as a substitute for corn grains in the ruminant feed.