Fig. 6From: Comparison of antimicrobial resistant Escherichia coli isolated from Irish commercial pig farms with and without zinc oxide and antimicrobial usagePangenome analysis for 44 AmpC / ESBL E. coli isolates. Gene clusters are indicated as opaque coloured elements and ordered based on their presence and absence, using the Euclidean distance and Ward clustering (see also inner dendrogram). Samples are hierarchically clustered based on the frequency of gene clusters (see also outer dendrogram). Sample abbreviations: FW0 faecal sample at day of weaning, FW1 faecal sample 1Â week after weaning, FW2 faecal sample 2Â week after weaning, SWD environmental swab sample of cleaned drinkers and feeders in empty pens, SWW environmental swab sample of cleaned walls and floors in empty pensBack to article page