Changes in fecal microbiota after therapeutic exposure to amoxicillin-clavulanic acid in veal calves receiving multiple antibiotics.

ABSTRACT: Amoxicillin-clavulanic acid (AMC) is an important antibiotic in human and veterinary medicine. However, it can select antibiotic-resistant bacteria in the gut microbiota and alter its composition. In calves, AMC can be used to treat complicated infections. The impact of AMC on the calves' gut is unknown; thus, we analyzed the effect of a five-day AMC treatment in veal calves suffering from omphalitis. AMC-treated calves (n = 15) and a control untreated group (n = 15) were enrolled from two farms. Stools were collected before AMC administration (D0), one day (D6), one month (D35), and two months (D55) after AMC withdrawal. The effect of AMC treatment on gut microbiota composition and resistance gene selection was analyzed by full-length 16S rRNA operon sequencing and qPCR, res

SUBMITTER: Moustaghfir M 

PROVIDER: S-EPMC12671132 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature