1. Prevalence of antibiotic-resistant E. coli in broilers challenged with a multi-resistant E. coli strain and received ampicillin, an organic acid-based feed additive or a synbiotic preparation. (25th January 2019) Authors: Roth, Nataliya; Hofacre, Charles; Zitz, Ulrike; Mathis, Greg F; Moder, Karl; Doupovec, Barbara; Berghouse, Roy; Domig, Konrad J Journal: Poultry science Issue: Volume 98:Number 6(2019:Jun.) Page Start: 2598 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗