title: The tryptophan content of some feedingstuffs for poultry.
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000818:Animals; D002523:Edible Grain / Q000032:analysis; D005504:Food Analysis / Q000379:methods; D010940:Plant Proteins; D011200:Poultry; D014364:Tryptophan / Q000032:analysis*; D006113:United Kingdom
chemical_list: D010940:Plant Proteins; D014364:Tryptophan