Table 4.
Apparent total tract digestibility (ATTD) of components in experimental diets and DE content in steeped DDGS fed to growing pigs1
| Item | Control2 | FDE-A3 | FDE-B4 | SEM | P value |
|---|---|---|---|---|---|
| ATTD, % | |||||
| DM | 76.2 | 74.8 | 76.0 | 1.14 | 0.109 |
| OM | 77.6 | 76.3 | 77.4 | 1.17 | 0.132 |
| NDF | 55.3a | 46.7b | 50.7ab | 1.94 | 0.005 |
| ADF | 59.3 | 54.5 | 58.6 | 2.56 | 0.065 |
| Crude fat | 46.8b | 56.4a | 46.4b | 2.44 | 0.001 |
| CP | 73.3 | 71.8 | 70.7 | 2.15 | 0.109 |
| GE | 74.8 | 74.1 | 73.8 | 1.17 | 0.376 |
| Energy5 | |||||
| ATTD, % | 84.0 | 83.2 | 82.8 | 0.98 | 0.680 |
| DE, as-fed basis, kcal/kg | 3,728 | 3,665 | 3,647 | 60.2 | 0.200 |
| DE, DM basis, kcal/kg | 4,095 | 4,039 | 3,974 | 47.7 | 0.230 |
Means within a row with different superscripts are different at P < 0.05. DDGS, distillers dried grains with solubles; FDE, fiber-degrading enzymes.
1Steeped (350 g of DDGS and 1.5 liters of water) for 24 h at 40 °C with 15 min of agitation every 40 min. Mixed with other feedstuffs prior to feeding.
2No enzymes.
3Supplied 5,500 U of xylanase and 1,050 U of β-glucanase per kg of DDGS.
4Supplied 1,200 U of xylanase, 150 U of β-glucanase, 500 U of cellulase, and 5,000 U of protease per kg of DDGS.
5Calculated by difference method (Adeola, 2001).