The effects of dietary sulfur amino acids on serum biochemical variables, mucosal amino acid profiles, and intestinal inflammation in weaning piglets

•Dietary sulfur amino acids affected serum biochemical variables of weaned piglets.•Dietary sulfur amino acids did not affect jejunal mucosal amino acid profiles.•Dietary sulfur amino acids lowered jejunal composition of alanine.•Dietary sulfur amino acids reduced jejunal mucosal sulfur amino acids metabolism.•Dietary sulfur amino acids reduced inflammation in jejunal mucosa of weaned piglets.