Effect of Subtherapeutic Administration of Antibiotics on the Prevalence of Antibiotic-Resistant Escherichia coli Bacteria in Feedlot Cattle

T. W. Alexander, L. J . Yanke, E. Topp, M. E. Olson, R. R. Read, D. W. Morck and T. A. McAllister

Applied and Environmental Microbiology 74 ( 14 ): 4405 - 4416 , 2008