Cottonseed hulls can be added to dairy cattle rations for roughage. Dried seaweed biomass was mixed in with low quality roughage and combined with rumen fluid. It is valued as a good roughage source for ruminants such as cattle. Examples are tannins from foods, such as tea and saw palmetto, phytic acid, and roughage. The sedge possibly is ingested for roughage or for parasite control. However, this is roughage with little nutritional value other than providing fiber. Any remaining liquids and roughage move into the large intestine. The cattle are fed rice straw as their principal source of roughage. Other possible factors include poor dental care, course roughage, dehydration, and limited exercise. The Dwarfers then decide to make a cow curry with roughage in it. Occasionally, rabbit parts with fur are added for roughage.