Crystalline amino acids and nitrogen emission

M.W.A. Verstegen, A.W. Jongbloed

Research output: Chapter in Book/Report/Conference proceedingChapter


Reductions in dietary protein level and supplementation with certain crystalline amino acids is a well-established method of formulating diets to achieve a more ideal amino acid pattern and to reduce nitrogen excretion. Up to 35% reduction in nitrogen excretion may be achieved by supplementing pig diets with lysine, methionine, threonine, and tryptophan. In broiler nutrition, 41% less N was excreted on feeding diets with 153 g CP per kg supplemented with amino acids
Original languageEnglish
Title of host publicationAmino acids in animal nutrition
Place of PublicationOxon, UK
PublisherCAB International
Number of pages10
ISBN (Print)9780851996547
Publication statusPublished - 2003


  • animal nutrition
  • amino acids
  • essential amino acids
  • nitrogen balance
  • excretion

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