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Chlortetracycline-Resistant Intestinal Bacteria in Organically Raised and Feral Swine
- Stanton, Thad B., Humphrey, Samuel B., Stoffregen, William C.
- Applied and environmental microbiology 2011 v.77 no.20 pp. 7167-7170
- Escherichia coli, Megasphaera elsdenii, bacteria, feces, intestinal microorganisms, species diversity, swine
- Organically raised swine had high fecal populations of chlortetracycline (CTC)-resistant (growing at 64 µg CTC/ml) Escherichia coli, Megasphaera elsdenii, and anaerobic bacteria. By comparison, CTC-resistant bacteria in feral swine feces were over 1,000-fold fewer and exhibited lower taxonomic diversity.