Fig. 3From: Comparing microbiotas in the upper aerodigestive and lower respiratory tracts of lambsHeatmap of bacterial OTUs found to be more indicative of lamb lung fluids than oropharyngeal swabs (PÂ <Â 0.05). Fluid and PBS samples from which DNA was extracted on specific dates are surrounded by coloured lines: 17 July 2014 (blue) and 25 March 2015 (red). DNA extractions carried out on 26 March 2015 only comprised oropharyngeal swabs which are not included in this figureBack to article page