| Factor | Kcal/kg | Comment |
| Resting energy expenditure | 50 | Resting metabolic rate |
| Activity | 15 | 30% above resting |
| Cold stress | 10 | Thermoregulation |
| Synthetic effect of feeding | 8 | Dietary thermogenesis |
| Fecal loss | 12 | 10% of intake |
| Growth | 25 | Calories stored |
| Total caloric requirement | 120 |
