Fig. 1From: Metagenomic comparison of the faecal and environmental resistome on Irish commercial pig farms with and without zinc oxide and antimicrobial usageRelative abundance of antimicrobial, heavy metal, and biocide resistance classes, with A showing the resistome composition of each sample on each farm and B comparison of treatment types [AB-ZnO (darker colours; indicated by dark grey in legend) and AB-ZnO free farms (lighter colours; indicated by light grey in legend)] per sample. Treatment types were compared per sample type using the Mann–Whitney U test with α = 0.05. Significant differences are indicated in red by an asterisk (p < 0.05). SFD, swab samples of cleaned feeders and drinkers of empty cleaned pens; SWF, swab sample of walls and floor of the pens prior to introduction of weaned piglets; FW0, faecal samples at the day of weaning; FW1, faecal samples 1 week post-weaning; FW2, faecal samples 2 weeks post-weaningBack to article page