Dietary fiber is a significant in different feeds and feed ingredients of animal feedstuffs, which has a major impact on their physico-chemical properties and digestion and fermentation characteristics in the gastro intestinal tract . Dietary fiber has an important role in pig and poultry diets and a minimum level of dietary fiber has to be included to maintain normal physiological function in the digestive tract. The presence of soluble dietary fiber in the diet increases digesta viscosity and increased viscosity in the digesta can limit the interaction between nutrients and enzymes facilitating the formation of an unstirred water layer in the intestinal surface, thereby creating a physical barrier and consequently, reducing nutrient digestion and absorption. Dietary fiber affects nutrients and energy digestibility in pigs with different types.therefore Considerable additional research is still needed in order to use dietery fiber feed resources with their potential to efects in the gastro intestinal tract non ruminant animals.