FIGURE 2.

Effect of dietary supplementation of Bacillus subtilis ATCC19659 on cecal microbiota communities of broilers by beta diversity measures. PCA (A), weighted PCoA (B), unweighted PCoA (C), weighted NMDS (D), and unweighted NMDS (E). CON, chicks were fed a corn-and soybean-based diet; ZnB, chicks were fed basal diet containing 500 mg ZnB/kg; BS-1, chicks were fed basal diet containing 1 × 10⁸ CFU/g feed of BS-ATCC19659; BS-3, chicks were fed basal diet containing 3 × 10⁸ CFU/g feed of BS-ATCC19659; BS-5, chicks were fed basal diet containing 5 × 10⁸ CFU/g feed of BS-ATCC19659.