Table 2.
Effects of the experimental diets on apparent digestibility of DM and NSP in weaned piglets 1.
| Digestibility, % | Diet | p-Value | ||||||
|---|---|---|---|---|---|---|---|---|
| W-SBM | W-RSM | R-SBM | R-RSM | SEM | CER | PM | CER * PM | |
| Jejunum | ||||||||
| DM | 73.3 | 53.1 | 70.6 | 57.4 | 1.9 | 0.787 | <0.001 | 0.246 |
| Colon ascendens | ||||||||
| DM | 86.7 | 80.0 | 85.4 | 78.4 | 0.8 | 0.224 | <0.001 | 0.925 |
| NSP | ||||||||
| Total | 70.4 | 64.5 | 77.4 | 71.1 | 1.0 | <0.001 | <0.001 | 0.903 |
| Fucose | 81.8 | 67.8 | 79.0 | 64.4 | 1.7 | 0.241 | <0.001 | 0.890 |
| Rhamnose | 55.0 | 26.5 | 53.9 | 37.8 | 4.7 | 0.573 | 0.018 | 0.495 |
| Arabinose | 69.5 | 72.9 | 74.2 | 75.3 | 0.7 | 0.011 | 0.097 | 0.375 |
| Galactose | 92.0 | 70.1 | 89.5 | 64.1 | 2.1 | 0.043 | <0.001 | 0.394 |
| Glucose | 62.0 | 61.3 | 75.3 | 72.1 | 1.2 | <0.001 | 0.222 | 0.448 |
| Mannose | 74.8 a | 48.8 b | 78.7 a | 67.6 a | 2.3 | 0.001 | <0.001 | 0.020 |
| Xylose | 70.0 | 71.1 | 76.9 | 76.7 | 0.9 | <0.001 | 0.757 | 0.639 |
| Galacturonic acid | 83.1 a | −29.7 c | 91.7 a | 31.3 b | 7.6 | <0.001 | <0.001 | <0.001 |
| Glucuronic acid | 47.3 b | 40.6 b | 72.3 a | 42.0 b | 2.6 | 0.001 | <0.001 | 0.002 |
| Soluble NSP 2 | 70.7 | 71.4 | 86.3 | 88.2 | 1.8 | <0.001 | 0.624 | 0.821 |
| Insoluble NSP | 70.4 | 63.4 | 74.8 | 64.7 | 1.1 | 0.116 | <0.001 | 0.405 |
| Total AX | 69.8 | 72.1 | 75.7 | 76.0 | 0.8 | 0.001 | 0.370 | 0.467 |
| Soluble AX 3 | 81.9 | 88.3 | 94.5 | 96.2 | 1.5 | <0.001 | 0.130 | 0.362 |
| Insoluble AX | 67.3 | 69.0 | 69.9 | 67.2 | 0.8 | 0.807 | 0.783 | 0.189 |
| Ratio A/X 4 | 0.82 | 1.05 | 0.94 | 1.14 | 0.02 | <0.001 | <0.001 | 0.640 |
| Feces 5 | ||||||||
| DM | 87.7 | 80.7 | 87.1 | 77.8 | 0.7 | 0.035 | <0.001 | 0.160 |
| NSP | ||||||||
| Total | 65.3 | 59.5 | 74.8 | 62.5 | 1.2 | 0.001 | <0.001 | 0.073 |
| Fucose | 80.9 | 64.0 | 74.0 | 56.7 | 1.9 | 0.011 | <0.001 | 0.948 |
| Rhamnose | 41.5 | 1.0 | 25.4 | 0.5 | 3.7 | 0.129 | <0.001 | 0.155 |
| Arabinose | 60.5 b | 68.1 a | 67.7 a | 67.1 a,b | 1.0 | 0.096 | 0.058 | 0.027 |
| Galactose | 90.6 a | 67.6 b | 87.4 a | 51.3 c | 2.5 | <0.001 | <0.001 | <0.001 |
| Glucose | 51.1 b | 51.2 b | 71.4 a | 59.4 b | 1.7 | <0.001 | 0.018 | 0.017 |
| Mannose | 83.7 a | 57.4 c | 87.1 a | 74.3 b | 2.0 | <0.001 | <0.001 | 0.002 |
| Xylose | 66.7 | 69.2 | 73.4 | 70.3 | 1.0 | 0.040 | 0.865 | 0.131 |
| Galacturonic acid | 85.5 a | −45.2 c | 93.4 a | 11.7 b | 9.1 | <0.001 | <0.001 | <0.001 |
| Glucuronic acid | 30.8 b | 29.9 b | 66.3 a | 28.5 b | 2.9 | <0.001 | <0.001 | <0.001 |
| Soluble | 71.4 | 54.9 | 85.8 | 79.7 | 2.5 | <0.001 | 0.004 | 0.162 |
| Insoluble | 64.1 b | 59.9 bc | 71.2 a | 55.7 c | 1.2 | 0.413 | <0.001 | 0.003 |
| Total AX | 64.0 | 68.7 | 70.9 | 68.7 | 0.9 | 0.060 | 0.508 | 0.061 |
| Soluble AX | 81.5 | 81.9 | 90.9 | 93.2 | 1.8 | 0.005 | 0.686 | 0.779 |
| Insoluble AX | 60.4 a,b | 66.2 a | 64.7 a,b | 58.0 b | 1.0 | 0.282 | 0.788 | 0.001 |
| Ratio A/X | 0.95 | 1.18 | 1.01 | 1.19 | 0.02 | 0.143 | <0.001 | 0.367 |
W-SBM, wheat/soybean meal; W-RSM, wheat/rapeseed meal; R-SBM, rye/soybean meal; R-RSM, rye/rapeseed meal; SEM, standard error of the mean; CER, cereal; PM, protein meal; DM, dry matter; NSP, non-starch-polysaccharides; AX, arabinoxylans. 1 Data are presented as means (n = 11); p-values indicate effects of the factors cereal (CER), protein meal (PM) and their interaction (CER * PM). 2 Soluble NSP: total NSP–insoluble NSP. 3 Soluble AX, total AX–insoluble AX. 4 A/X, ratio of concentration of arabinose and xylose in digesta or feces. 5 R-SBM: n = 10 (lack of collectable feces). a, b, c Values within a row with different superscripts differ significantly at p ≤ 0.05 (Tukey test).