TABLE 2.
Mean effects of by-product inclusion rate on disappearance of feed and its components in the rumen simulation technique (RUSITEC) system.
| Parameter | BP35 | BP95 | SEM | P value |
| Dry matter (c) | 69.67a | 57.28b | 0.62 | <0.0001 |
| Dry matter (t) | 78.44a | 67.50b | 0.89 | <0.0001 |
| Organic matter (c) | 65.36a | 52.75b | 0.51 | <0.0001 |
| Organic matter (t) | 75.75a | 66.75b | 0.61 | <0.0001 |
| Crude protein (c) | 75.32a | 63.96b | 0.84 | <0.0001 |
| Crude protein (t) | 86.33a | 80.62b | 0.44 | <0.0001 |
| NDF (c) | 37.21a | 45.86b | 0.75 | <0.0001 |
| NDF (t) | 63.10a | 58.46b | 0.89 | <0.0001 |
| ADF (c) | 24.23a | 34.41b | 0.92 | <0.0001 |
| ADF (t) | 54.27a | 50.06b | 1.15 | 0.0096 |
Digestibility: c = Concentrate component of overall diet (i.e., 50% of overall DM content of diet); t = Total diet (i.e., 50% concentrate component and 50% forage component on a DM basis). BP35 = Ration containing 35% by-products. BP95 = Ration containing 95% by-products. SEM = Standard error of the mean. a,bMeans within a row with different superscript differ (P < 0.05).