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. 2022 May 31;9:903847. doi: 10.3389/fnut.2022.903847

FIGURE 1.

FIGURE 1

Effect of in ovo inclusion of Bacillus subtilis, raffinose, and their synbiotics on ileal histomorphometry of 21-day-old broilers. Each number on the figure means the following groups: 1 = non-injected group; 2 = sterile distilled water; 3 = Bacillus subtilis 4 × 105/egg; 4 = Bacillus subtilis 4 × 106/egg; 5 = Raffinose 2 mg/egg; 6 = Raffinose 3 mg/egg; 7 = (Bacillus subtilis 4 × 105 + Raffinose 2 mg)/egg; 8 = (Bacillus subtilis 4 × 105 + Raffinose 3 mg)/egg; 9 = (Bacillus subtilis 4 × 106 + Raffinose 2 mg)/egg; 10 = (Bacillus subtilis 4 × 106 + Raffinose 3 mg)/egg. Images were captured with light microscopy. Scale bar indicates 500 μm.