title: Calcium and magnesium absorption in growing cattle as influenced by age of animal and source of dietary nitrogen.
mesh_terms: D000367:Age Factors; D000821:Animal Feed; D000818:Animals; D002118:Calcium / Q000378:metabolism*; D002417:Cattle / Q000254:growth & development / Q000378:metabolism*; D008274:Magnesium / Q000378:metabolism*; D008297:Male; D009584:Nitrogen / Q000494:pharmacology*
chemical_list: D008274:Magnesium; D009584:Nitrogen; D002118:Calcium