title: Pre-intestinal destruction of vitamin A by ruminants fed nitrate.
mesh_terms: D000018:Abomasum / Q000378:metabolism*; D000821:Animal Feed; D000818:Animals; D002417:Cattle / Q000378:metabolism*; D008297:Male; D009566:Nitrates / Q000494:pharmacology*; D010087:Oxides / Q000032:analysis; D011188:Potassium / Q000494:pharmacology; D012756:Sheep / Q000378:metabolism*; D014801:Vitamin A / Q000032:analysis / Q000378:metabolism*
chemical_list: D009566:Nitrates; D010087:Oxides; D014801:Vitamin A; D011188:Potassium