title: Difficulties associated with the use of tritiated polyethylene glycol as a water-soluble digestion marker in ruminants.
mesh_terms: D000818:Animals; D002247:Carbon Isotopes; D002417:Cattle / Q000378:metabolism*; D004063:Digestion; D004386:Duodenum / Q000032:analysis / Q000378:metabolism; D005402:Fistula; D006018:Glycols / Q000032:analysis; D007082:Ileum / Q000032:analysis / Q000378:metabolism; D008297:Male; D011095:Polyethylenes / Q000032:analysis; D012417:Rumen / Q000032:analysis / Q000378:metabolism*; D012995:Solubility; D014316:Tritium; D014867:Water
chemical_list: D002247:Carbon Isotopes; D006018:Glycols; D011095:Polyethylenes; D014867:Water; D014316:Tritium