Table 4.
Effect of bacterial culture, enzyme and yeast additives on true nutrient digestibility in a dual-flow continuous culture system
| Digestibility, % | Treatmenta | P-valueb | ||||||
|---|---|---|---|---|---|---|---|---|
| CTRL | EB | EBY | 2X | SEM | ADD | YEAST | DOSE | |
| Dry matter | 61.9 | 59.5 | 61.3 | 59.7 | 2.80 | 0.38 | 0.64 | 0.48 |
| Organic matter | 62.8 | 60.7 | 61.4 | 60.8 | 2.45 | 0.27 | 0.79 | 0.74 |
| Crude protein | 67.0 | 68.6 | 65.3 | 67.4 | 2.83 | 0.98 | 0.43 | 0.53 |
| Neutral detergent fiber | 55.8 | 52.0 | 53.7 | 52.4 | 2.98 | 0.15 | 0.64 | 0.59 |
| Starch | 94.8 | 93.8 | 92.8 | 94.2 | 0.88 | 0.14 | 0.74 | 0.15 |
aCTRL: no additives; EB: addition of enzymes and bacteria; EBY: addition of enzymes, bacteria and yeast; 2X-EBY: addition of enzymes, bacteria, and yeast at double the EBY dosage.
bOrthogonal contrasts: ADD—CTRL vs. EB, EBY, and 2X; YEAST—EB vs. EBY and 2X; and DOSE—EBY vs. 2X.