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Pie charts of relative microbial abundances in the ceca and lung across production stages in CC hens. Relative microbial abundances were based on 16S rRNA sequencing of ceca (top) and lung (bottom) in hens from a conventional cage (CC) environment during early, peak, and late stages of production. Each color represents a particular phylum. Each pie chart represents the average (n = 20) relative abundances of phyla.
