Study of antimicrobial resistance during the calf rearing period in dairy farms

MARCONI, MARÍA JOSÉ; BULDAIN, DANIEL; ALARCÓN, LAURA; MARCHETTI, LAURA; MADOZ, VANINA; BALLESTEROS, CRISTINA; AVISON, MATTHEW; DE LA SOTA, LUZBEL; REYHER, KRISTEN; MESTORINO, NORA; JAUREGUIBERRY, MARÍA

Congreso; 31st WORLD BUIATRICS CONGRESS 2022 MADRID; 2022

Objectives: To determine antimicrobial (AM) resistance patterns of E. coli from dairy calves and their environment during the rearing period. Materials and Methods: Six commercial dairy farms located in Buenos Aires, Argentina, were each visited twice, once during winter (June-August 2021) and once during spring(September-December 2021). Rectal swabs were obtainedfrom healthy and no AM-treated calves at different ages (