ABSTRACT
Escherichia coli is an important causative agent of piglets diarrhea, that control in pig production is complicated by high ability of this agent in develop and spread resistance mechanisms for commonly used antibiotics. This study has as goal determine the resistance pattern of 600 E. coli strains isolated from fecal samples of 100 piglets with diarrhea, against the antibiotics often used in swine production. The determination of minimal inhibitory concentration was done under international standards to the following antibiotics: ampicilin, ceftiofur, streptomicin, kanamicin, oxitetracicline, cloranfenicol, flumequin, penicilin, sulfadiazintrimetoprim, gentamicin, neomicin, enrofloxacin and norfloxacin. The results observed shown that multiple resistance is frequent against the antibiotics often used in piglets diarrhea therapy.
KEY WORDS:
Piglets diarrhea; pigs; antimicrobial; Escherichia coli; resistance; diarrhea.