Figure 1.

Community structure based on Bray-Curtis distance matrix. Non-metric multidimensional scaling (NMDS) of operational taxonomic unit (OTU) relative abundances in broiler chickens fed a control diet (CTR) or the same diet supplemented with Muramidase 007 (MUR) during the starter and grower periods. Data are clustered by the age of the animal (sampling days at 9 and 36 d of life) and the experimental diets (CTR diet and MUR diet). Black: CTR day 9; blue: MUR day 9; white; CTR day 36; and green: MUR day 36.