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- Schmidt, John W., et al. Show all 3 Authors
- Applied and environmental microbiology 2016 v.82 no.24 pp. 7197-7204
- Escherichia coli; animal health; antibiotic resistance; beef cattle; cephalosporins; chlortetracycline; disease control; feedlots; feeds; long term effects; medicine; morbidity; tetracycline
- ... Concerns have been raised that in-feed chlortetracycline (CTC) may increase antimicrobial resistance (AMR), specifically tetracycline-resistant (TETr) Escherichia coli, and third-generation cephalosporin-resistant (3GCr) E. coli. We evaluated the impact of a 5-day in-feed CTC prophylaxis on animal health, TETr E. coli, and 3GCr E. coli. A "control group" of cattle (n = 150) that received no CTC, w ...
- PubMed Central:
- Schmidt, John W., et al. Show all 5 Authors
- Journal of food protection 2016 v.79 no.4 pp. 531-537
- Salmonella enterica; adults; anus; bacterial shedding; cattle; confidence interval; cross-sectional studies; excretion; feces; feedlots; food pathogens; harvesting; human health; immunomagnetic separation; mucosa; risk
- ... Cattle are noted carriers of the foodborne pathogen Salmonella enterica. The perceived need to decrease the potential human health risk posed by excretion of this pathogen has resulted in numerous studies examining the factors that influence cattle shedding of Salmonella. Fecal grab (FG) samples have been the predominant method used to identify cattle colonized or infected with Salmonella, however ...