title: Effect of protein level on growth, nitrogen balance and reproductive performance in gilts.
mesh_terms: D000367:Age Factors; D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D003338:Corpus Luteum / Q000033:anatomy & histology; D004044:Dietary Proteins / Q000008:administration & dosage*; D004971:Estrus; D005243:Feces / Q000032:analysis; D005260:Female; D009584:Nitrogen / Q000378:metabolism* / Q000652:urine; D011247:Pregnancy; D012098:Reproduction; D013552:Swine / Q000254:growth & development / Q000378:metabolism / Q000502:physiology*
chemical_list: D004044:Dietary Proteins; D009584:Nitrogen