title: Urea as a nitrogen source for pigs fed diets supplemented with lysine and methionine.
mesh_terms: D000596:Amino Acids; D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight; D005503:Food Additives; D008239:Lysine / Q000494:pharmacology*; D008715:Methionine / Q000494:pharmacology*; D009584:Nitrogen / Q000378:metabolism*; D013552:Swine / Q000254:growth & development*; D014508:Urea / Q000378:metabolism*
chemical_list: D000596:Amino Acids; D005503:Food Additives; D014508:Urea; D008715:Methionine; D008239:Lysine; D009584:Nitrogen