Table 1. Mean Growth, Metabolic, and Activity Data for Experiment 1.
| Group | Category | P2 | P8 | P14 |
| Small Litter | Weight (g) | 8.58±.50 | 21.2±.65 | 34.3±.88 |
| SR Length (mm) | 57.8±1.24 | 75.8±1.24 | 94.2±.80 | |
| SO Length (mm) | 21.2±.37 | 28±.45 | 34.4±.24 | |
| VO2 (ml/min/kg) | 77.48±4.31 | 66.0±4.43 | 69.62±2.54 | |
| VCO2 (ml/min/kg) | 61.39±3.33 | 50.49±3.02 | 54.36±2.05 | |
| RQ | 0.79±.01 | 0.77±.01 | 0.78±.00 | |
| Energy Expenditure (kcal/day/kg) | 534.59±29.57 | 452.21±29.68 | 478.89±17.56 | |
| Activity (AU) | 0.76±.24 | 0.43±.17 | 1.81±.20 | |
| Medium Litter | Weight (g) | 7.35±.26 | 17.9±1.21 | 31.05±1.18 |
| SR Length (mm) | 55.75±.48 | 72±.71 | 91.25±.75 | |
| SO Length (mm) | 19.25±.25 | 26.75±.48 | 32.75±.49 | |
| VO2 (ml/min/kg) | 68.40±2.32 | 69.14±6.92 | 66.48±6.9 | |
| VCO2 (ml/min/kg) | 54.18±2.04 | 62.28±1.49 | 56.37±2.41 | |
| RQ | 0.79±.01 | 0.81±.01 | 0.8±.01 | |
| Energy Expenditure (kcal/day/kg) | 471.89±16.31 | 535.98±15.5 | 477.23±31.21 | |
| Activity (AU) | 0.67±.21 | 0.54±.19 | 2.05±.49 | |
| Large Litter | Weight (g) | 7.98±.12 | 16.8±.97 | 26.42±1.71 |
| SR Length (mm) | 53.6±.24 | 71.2±1.77 | 85.2±2.03 | |
| SO Length (mm) | 20.2±.2 | 26.6±.51 | 31.6±1.17 | |
| VO2 (ml/min/kg) | 73.85±3.07 | 72.0±4.73 | 65.28±3.72 | |
| VCO2 (ml/min/kg) | 60.39±2.24 | 57.57±3.77 | 52.67±2.51 | |
| RQ | 0.82±.01 | 0.79±.00 | 0.81±.01 | |
| Energy Expenditure (kcal/day/kg) | 512.80±20.83 | 503.20±32.68 | 452.03±24.82 | |
| Activity (AU) | 0.69±.21 | 0.62±.20 | 2.01±.30 |