title: Determining the energy values of ingredients in pig feeds.
mesh_terms: D000821:Animal Feed / Q000592:standards*; D000818:Animals; D002153:Calorimetry, Indirect; D004044:Dietary Proteins / Q000592:standards; D004063:Digestion; D002149:Energy Intake; D004734:Energy Metabolism; D008722:Methods; D009584:Nitrogen / Q000378:metabolism; D013552:Swine / Q000378:metabolism*
chemical_list: D004044:Dietary Proteins; D009584:Nitrogen