The Combination of Dietary Branched-Chain and Limiting Amino Acids Modulates Feed Intake Through Both Peripheral and Central Mechanisms in Pigs Fed with Low Protein Diets

摘要

Due to its negative influence on human health and environment, excess nitrogen excretion is challenging the sustainability of swine industry. Severe reduction of dietary protein may reduce the excretion of nitrogen from swine production, but this results in poor growth performance of pigs. The aim of current study was to investigate the effect of supplementing LP diets with both branched-chain amino acids (BCAA; , leucine, isoleucine, valine) and other limiting amino acids (LAA; , lysine, methionine, threonine, tryptophan) at levels higher than suggested requirements on the growth performance and mRNA and protein abundance of markers associated with feed intake in nursery pigs.