Changes in Multidrug Resistance of Enteric Bacteria following an Intervention To Reduce Antimicrobial Resistance in Dairy Calves

• Published in: Journal of Clinical Microbiology Vol. 47; no. 12; pp. 4109 - 4112
• Main Authors: Kaneene, John B, Warnick, Lorin D, Bolin, Carole A, Erskine, Ronald J, May, Katherine, Miller, RoseAnn
• Format: Journal Article
• Language: English
• Published: Washington, DC American Society for Microbiology 01.12.2009; American Society for Microbiology (ASM)
• Subjects: Animal Feed; Animals; Anti-Bacterial Agents - chemistry; Anti-Bacterial Agents - pharmacology; Biological and medical sciences; Campylobacter; Campylobacter - drug effects; Clinical Veterinary Microbiology; Dairying; Drug Resistance, Multiple, Bacterial; Escherichia coli; Escherichia coli - drug effects; Feces - microbiology; Female; Fundamental and applied biological sciences. Psychology; Gram-Negative Bacteria - classification; Gram-Negative Bacteria - drug effects; Microbial Sensitivity Tests; Microbiology; Neomycin - chemistry; Neomycin - pharmacology; Oxytetracycline - chemistry; Oxytetracycline - pharmacology; Salmonella; Salmonella - drug effects; Vertebrata; Mammalia; Bovine; Microbiology; Multiple resistance; Bacteria; Artiodactyla; Veterinary; Ungulata; Antimicrobial agent
• ISSN: 0095-1137; 1098-660X
• DOI: 10.1128/JCM.01939-09

An intervention study was conducted to determine whether discontinuing the feeding of milk replacer medicated with oxytetracycline and neomycin to preweaned calves reduced antimicrobial resistance in Salmonella, Campylobacter, and Escherichia coli bacteria. Results demonstrated that the intervention did reduce multidrug resistance in these bacteria but that other factors also influenced multidrug resistance.