Multiple Antibiotic Resistance Patterns of <i>Escherichia coli</i> Isolates from Swine Farms

Abstract

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.