title: [Nitrogen and mineral metabolism of growing lambs fed straw treated in different ways].
abstract: Lambs were fed diets containing 500 g straw, 50 g sucrose and 30 g minerals per day. The straw was untreated (A), wafered after addition of NaOH (B) or gassed with ammonia. Diets A and B, in addition contained urea, so that equal amounts of dietary N were offered. Digestibility of OM was increased by 12 units after addition of NaOH and by 8 units after gassing with NH3. As significantly more faecal N was excreted in animals fed diet C, it is concluded that N of NH3-treated straw is less available than of added urea. When NaOH-treated straw was fed, renal excretion of phosphorus was increased.
mesh_terms: D000641:Ammonia / Q000494:pharmacology; D000821:Animal Feed; D000818:Animals; D002482:Cellulose; D004063:Digestion; D008297:Male; D008903:Minerals / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism*; D012756:Sheep / Q000378:metabolism*; D012972:Sodium Hydroxide / Q000494:pharmacology
chemical_list: D008903:Minerals; D012972:Sodium Hydroxide; D000641:Ammonia; D002482:Cellulose; D009584:Nitrogen
vernacular_title: Untersuchungen an wachsenden Lämmern zum Umsatz von Stickstoff und Mineralstoffen bei Fütterung von unterschiedlich behandeltem Stroh.