Table 3.
Median of microbial diversity (Shannon index) and richness estimator (Chao1 index) calculated based on an equal number of sequences (34,136 sequences/sample) of cecal samples of broiler chickens fed diets with different enzymatic associations.
| Treatments | Shannon index | Chao1 index |
|---|---|---|
| Positive control (PC)1 | 7.05 | 256.5 |
| Negative control (NC)1 | 6.36 | 199.0 |
| NC + Amylase2 | 7.04 | 261.5 |
| NC + Amylase + Xylanase2 | 6.62 | 226.0 |
| NC + Amylase + Xylanase + Protease2 | 6.29 | 221.5 |
| P value | 0.505 | 0.599 |
1
PC, positive control (meeting the nutritional requirements of broilers without the enzyme inclusion); NC, negative control (reduction of 100 kcal/kg).
2
Amylase (RONOZYME HiStarch, 80 KNU/kg), xylanase (RONOZYME WX, 100 FXU/kg), and protease (RONOZYME ProAct, 15,000 PROT/kg).