Table 4. Effects of different doses of MOS on retention rate of CP and apparent digestibility of CP, Ca, and TP in sheep.
| Items1 | MOS2 | SEM3 | P-value | |||
|---|---|---|---|---|---|---|
| 0% | 0.8% | 1.6% | 2.4% | |||
| CP4 | ||||||
| Intake, g/d | 200.5 | 221.3 | 224.9 | 227.0 | 9.105 | 0.738 |
| CP in feces, g/d | 63.34 | 69.74 | 63.19 | 64.16 | 2.483 | 0.777 |
| CP in urine, g/d | 79.68 | 73.26 | 87.11 | 90.76 | 4.525 | 0.545 |
| Digested CP, g/d | 137.1 | 151.6 | 161.7 | 162.8 | 7.083 | 0.571 |
| Apparent digestibility, % | 67.90b | 68.00b | 72.16a | 71.61ab | 0.719 | 0.045 |
| Retained CP, g/d | 57.45 | 78.33 | 74.61 | 72.06 | 6.134 | 0.662 |
| Retention rate, % | 27.81 | 34.35 | 33.09 | 31.70 | 1.938 | 0.677 |
| Ca5 | ||||||
| Intake, g/d | 5.470 | 5.578 | 5.232 | 6.260 | 0.282 | 0.637 |
| Ca in feces, g/d | 5.342 | 5.365 | 4.811 | 5.818 | 0.214 | 0.451 |
| Digested Ca, g/d | 0.127 | 0.213 | 0.422 | 0.442 | 0.133 | 0.816 |
| Apparent digestibility, % | −0.971 | 2.548 | 4.390 | 6.423 | 2.670 | 0.814 |
| TP6 | ||||||
| Intake, g/d | 4.430 | 4.566 | 4.057 | 4.933 | 0.225 | 0.613 |
| TP in feces, g/d | 3.600 | 3.371 | 3.186 | 3.544 | 0.133 | 0.716 |
| Digested TP, g/d | 0.831 | 1.195 | 0.871 | 1.389 | 0.137 | 0.441 |
| Apparent digestibility, % | 17.00 | 24.46 | 15.79 | 27.71 | 3.006 | 0.454 |
Notes:
1
Sheep were fed 0, 0.8, 1.6, or 2.4% MOS (n = 6 per treatment). The mean of digestion and retention results are shown for each treatment over the 6-day collection phase of the study.
2
MOS, mannan oligosaccharides.
3
SEM, standard error of the mean.
4
CP, crude protein.
5
Ca, calcium.
6
TP, total phosphorus.
Means within rows with different superscript letters significantly differ (P < 0.05).