Table 2.
Average intake of dry matter (DMI), ME(MEI), CP, RDP, and RUP intake by treatment within period
| Period | Adaptation | Preliminary | Experimental | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Item/Treatment1 | Initial | LO | HI | LO | HI | SEM2 | E1 | E2 | E3 | SEM2 | P0 | P30 | P60 | P90 | SEM2 |
| N | 8 | 8 | 8 | 45 | 46 | 34 | 29 | 28 | 27 | 23 | 20 | 21 | |||
| DMI, kg/d | 0.90a | 0.55b | 1.5c | 1.40d | 1.50e | 0.029 | 1.33f | 1.48g | 1.57g | 0.032 | 1.49 | 1.45 | 1.46 | 1.39 | 0.042 |
| MEI, MJ/d | 9.00a | 4.95b | 13.5c | 13.04d | 13.75e | 0.47 | 10.36f | 13.72g | 16.77h | 0.31 | 13.92 | 13.51 | 13.53 | 12.49 | 0.66 |
| CP, g/d | 136.8a | 83.6b | 228c | 235.3d | 240.1e | 8.77 | 189.8f | 237.5g | 297.2h | 7.2 | 205.1j | 227.2k | 259.3l | 272.1m | 11.2 |
| RDP Intake, g/d3 | 103.97a | 63.54b | 173.28c | 161.6d | 168.0e | 5.92 | 129.2f | 161.2g | 211.9h | 3.78 | 157.5j | 161.4jk | 173.4kl | 169.9l | 8.4 |
| RUP Intake, g/d3 | 32.83a | 20.06b | 54.72c | 73.65d | 72.77e | 3.72 | 60.55f | 76.33g | 85.34h | 4.17 | 47.58j | 65.81k | 85.83l | 102.2m | 2.87 |
LO, low level of feeding during preliminary period; HI, high level of feeding during preliminary period; E1, E2, and E3, ad libitum intake of feed with M/D of 7.8, 9.2, and 10.7 MJ/kg DM, respectively; P0, P30, P60, P90, supplemented with 0, 30, 60, and 90 g/d of RUP, respectively.
Average of values of standard error of the mean (SEM) for levels within each comparison.
Sum of intake from basal feed + supplement.
Unlike superscripts within timepoints and main effects differ (P < 0.05). Data shown are unadjusted means.