Rumination and its significance.
D000375:Aging; D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002417:Cattle; D004032:Diet; D006041:Goats; D012417:Rumen; D012756:Sheep; D012890:Sleep; D013279:Stomach, Ruminant / Q000502:physiology; D013997:Time Factors