Ruminant livestock research and development.
D000383:Agriculture; D000820:Animal Diseases; D000821:Animal Feed; D000822:Animal Husbandry; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001188:Artiodactyla / Q000469:parasitology / Q000502:physiology*; D008460:Meat; D008892:Milk; D012098:Reproduction; D012109:Research Support as Topic; D014481:United States