This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Reprints and Permissions Copyright Information Books from ASM Press MicrobeWorld Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Gellin, G Articles by Aaron, D K Search for Related Content PubMed PubMed Citation Articles by Gellin, G Articles by Aaron, D K Agricola Articles by Gellin, G Articles by Aaron, D K

 Previous Article  |  Next Article 

Appl Environ Microbiol. 1989 September; 55(9): 2287-2292

Antibiotic resistance of gram-negative enteric bacteria from pigs in three herds with different histories of antibiotic exposure.

Department of Animal Sciences, University of Kentucky, Lexington 40546-0215.

ABSTRACT

The antibiotic resistance patterns of gram-negative fecal bacteria from pigs in three herds with different histories of antibiotic exposure were examined. In general, smaller proportions of antibiotic-resistant or multiply resistant fecal isolates (P less than 0.05) were obtained from pigs in a herd not exposed to antimicrobial agents for 154 months than from pigs in a herd continuously exposed to antimicrobial agents at subtherapeutic doses or from pigs in a herd exposed only to therapeutic doses of antimicrobial agents. The proportions of antibiotic-resistant and multiply resistant strains were greater among isolates from pigs in the therapeutic herd than in the non-antibiotic-exposed herd (P less than 0.05). The proportion of antibiotic-resistant isolates in the non-lactose-fermenting population was greater than that in the lactose-fermenting population, regardless of herd. The results suggest that any form of antimicrobial exposure will increase the prevalence of antimicrobial resistance and multiple resistance of fecal bacteria.

This article has been cited by other articles:

• Bibbal, D., Dupouy, V., Ferre, J. P., Toutain, P. L., Fayet, O., Prere, M. F., Bousquet-Melou, A. (2007). Impact of Three Ampicillin Dosage Regimens on Selection of Ampicillin Resistance in Enterobacteriaceae and Excretion of blaTEM Genes in Swine Feces. Appl. Environ. Microbiol. 73: 4785-4790 [Abstract] [Full Text]  
• Hoyle, D. V., Shaw, D. J., Knight, H. I., Davison, H. C., Pearce, M. C., Low, J. C., Gunn, G. J., Woolhouse, M. E. J. (2004). Age-Related Decline in Carriage of Ampicillin-Resistant Escherichia coli in Young Calves. Appl. Environ. Microbiol. 70: 6927-6930 [Abstract] [Full Text]  
• Berge, A. C. B., Adaska, J. M., Sischo, W. M. (2004). Use of Antibiotic Susceptibility Patterns and Pulsed-Field Gel Electrophoresis To Compare Historic and Contemporary Isolates of Multi-Drug-Resistant Salmonella enterica subsp. enterica Serovar Newport. Appl. Environ. Microbiol. 70: 318-323 [Abstract] [Full Text]