Abstract Background The ability of a bacterial strain to competitively exclude or displace other strains can be attributed to the production of narrow spectrum antimicrobials. the bacteriocins. In an attempt to evaluate the importance of bacteriocin production for Escherichia coli strain residence in the gastrointestinal tract. a murine model experimental evolution study was undertaken. https://allfixelectricales.shop/product-category/gaffer-tape/