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第19号公告板 - Fall 2004
18th IPVS Congress, Hamburg, Germany, 2004Miscelleanous
BELLOC C, DINH NL, PACOT C, BEHRA S, LAVAL A
Influence of antimicrobial use on resistance in pig herds
Proceedings of the 18th IPVS Congress, Hamburg, Germany, 2004 - Volume 1:445
Fourteen farrow-to-finish French herds were classified as low-users, medium-users and high-users as regards to the use of antimicrobials. Fecal samples were collected from sows and pigs and the Escherichia coli strains isolated were tested for antimicrobial susceptibility to ceftiofur, cefquinome, florfenicol and colistin for which no or few resistance was demonstrated and amoxicillin, gentamicin, trimethroprim-sulfamethoxazol and tetracycline for which various levels of resistance were observed. In pigs, the level of antimicrobial use was found to have a significant effect on percentage of resistant E. coli from postweaning to the end of the fattening period.
