Medium-chain fatty acid triglyceride (MCT) is broken down into fatty acids and glycerol by digestive enzymes in the intestinal tract of animals, and it can quickly provide energy for the body. In recent years, MCT has been proved to be effective in regulating intestinal morphology and improving intestinal microbiological balance in piglets. In this paper, the digestion and absorption characteristics, antibacterial mechanism, improvement of intestinal barrier function, immune effect and application of MCT in piglet production were summarized, aiming to provide reference for ...