Liu, Shule Mitigation of ammonia emissions from pig production using reduced dietary crude protein with amino acid supplementation. [electronic resource] - Bioresource technology Jun 2017 - 200-208 p. digital Publication Type: Journal Article ISSN: 1873-2976 Standard No.: 10.1016/j.biortech.2017.02.082 doi Subjects--Topical Terms: Amino AcidsAmmonia--metabolismAnimal FeedAnimalsDietary Proteins--metabolismManureSus scrofaSwine