Abstract: Probiotics (Direct-Fed Microbial: DFM) have been established for use as a feed additive; researchers have observed many beneficial effects of such by improving the intestinal microbial balance in livestock. The functions of probiotics within a Gastrointestinal Tract (GIT) are suggested to include the following: competing with pathogenic bacteria for nutrients in the gut; competing with pathogens for binding sites on the intestinal epithelium; producing compounds that are toxic to pathogens and Stimulating the immune system. The applications of probiotics provide a potential alternative strategy to antibiotic use in livestock. It is suggested that probiotics should be used as a feed additive in livestock.
J.H. Cho, P.Y. Zhao and I.H. Kim, 2011. Probiotics as a Dietary Additive for Pigs: A Review. Journal of Animal and Veterinary Advances, 10: 2127-2134.