Fig. 4From: Piglet nasal microbiota at weaning may influence the development of Glässer’s disease during the rearing periodThe core of the nasal microbiota of piglets from Spanish (Sp) and British (UK) farms. Bars represent relative abundance for the OTUs found in all healthy animals at a minimum of 1 %. Each graph represents the OTUs at different taxonomical levels: phylum (a), family (b), genus (c). Unassigned sequences were not included in the core analysisBack to article page