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Applied and Environmental Microbiology, June 1999, p. 2770-2772, Vol. 65, No. 6
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.

Multiple Antibiotic Resistance Patterns of Escherichia coli Isolates from Swine Farms

A. G. Mathew,* A. M. Saxton, W. G. Upchurch, and S. E. Chattin

Department of Animal Science, Agriculture Experiment Station, The University of Tennessee, Knoxville, Tennessee 37996

Received 11 December 1998/Accepted 9 March 1999

Antibiotic resistance of Escherichia coli from sows and pigs was determined to compare patterns between pigs of various ages and degrees of antibiotic use. Resistance patterns differed between farm types and pigs of differing ages, indicating that pig age and degree of antibiotic use affect resistance of fecal E. coli.


* Corresponding author. Mailing address: Department of Animal Science, Brehm Bldg., 2505 River Dr., The University of Tennessee, Knoxville, TN 37996. Phone: (423) 974-7291. Fax: (423) 974-7297. E-mail: amathew{at}utk.edu.


Applied and Environmental Microbiology, June 1999, p. 2770-2772, Vol. 65, No. 6
0099-2240/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.



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