Ammonium phosphate is a potential nitrogen supplement in nitrogen-limiting diets for growing pigs

Abstract

Reduced protein diets may be limiting in dietary nitrogen (N). The objective of this study was to determine the impact of non-protein nitrogen (NPN) inclusion and lysine content on growth performance of growing pigs. Pen-housed growing pigs were randomly assigned to 1 of 6 dietary treatments to test impact of NPN inclusion and dietary lysine content for 28 d. Non-protein N inclusion increased feed efficiency and lean depth (P < 0.05). Final body weight increased with greater lysine (P < 0.05) but was not impacted by NPN (P > 0.05). Ammonium phosphate may be an appropriate N source in N-limiting diets for pigs.