Salmonella Antimicrobial Activity of Selected Strains of Enterolactobacillus Species Isolated from the Gastrointestinal Tract of the Horse

The gastric mucosa and the mucosa of the right and left dorsal colon were biopsied in each of the 15 horses, and a total of 45 samples were collected. Mucosal samples were cultured using a Lactobacillus enrichment broth. While numerous Lactobacillus strains were identified, Lactobacillus reuteri was the most common organism identified. Sixteen strains of Lactobacillus reuteri were selected for antimicrobial testing. Salmonella antimicrobial activity was identified in six out of 16 strains tested. Organisms with Salmonella antimicrobial activity were cultured from the stratified squamous epithelium of the stomach and the mucosa of the right and left dorsal colon.