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The Thai Journal of Veterinary Medicine

Abstract

A total of 145 Escherichia coli isolates originated from clinically-healthy pigs were analyzed for plasmidprofiles. All but one isolate (n=144) carried one to nine plasmids with size ranging from 0.7-16.2 Mda. Fifty-sixplasmid profiles were defined based on sizes and numbers of plasmids in each strain, of which the most commonpatterns were 15.8, 4, 3.3, 1.7, 1.3 Mda and 16.2, 15.8, 4, 3.3, 2.3, 1.7, 1.3, 1, 0.7 Mda. The results indicate widedistribution of plasmids among the commensal E. coli isolates originated from clinically-healthy pigs.

First Page

229

Last Page

233

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