Lee, D J The effect of a single oral dose of nonprotein nitrogen from various sources on amino acid concentrations in the plasma and liver of the chick. [electronic resource] - British poultry science Jul 1978 - 467-73 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0007-1668 Standard No.: 10.1080/00071667808416502 doi Subjects--Topical Terms: Administration, OralAmino Acids--bloodAnimalsChickens--metabolismLiver--metabolismMaleNitrogen--administration & dosageQuaternary Ammonium Compounds--administration & dosageUrea--administration & dosage