Table 2.

Anthropometrics, energy metabolism and nutrient utilization in monkeys who were "non-eaters" (< 13 kcal/kg) and "eaters" (> 23 kcal/kg) in energy intake.

	Non-eaters	Eaters
Number of monkeys	6	10
Body weight (kg)	5.4 ± 0.7	5.5 ± 1.8
Age (years)	11.8 ± 3.6	11.7 ± 5.3
Modified BMI (kg/crown rump, m2)	25 ± 4.2	30.3 ± 7.7
22-hour energy intake (kcal/kg)	8.0 ± 3.1	56.9 ± 11.6*
22-hour energy expenditure (kcal/kg)	47.1 ± 5.3	49.7 ± 10.6
Day period energy expenditure (kcal/kg)	20.0 ± 2.4	20.2 ± 4.0
Dark period energy expenditure (kcal/kg)	22.4 ± 2.8	24.5 ± 5.4
Morning energy expenditure (kcal/kg)	4.7 ± 0.5	5.0 ± 1.3
22-hour respiratory quotient (VCO2/VO2)	0.77 ± 0.02	0.86 ± 0.03 *
Day period respiratory quotient (VCO2/VO2)	0.80 ± 0.04	0.83 ± 0.04
Dark period respiratory quotient (VCO2/VO2)	0.75 ± 0.01	0.88 ± 0.03 *
Morning respiratory quotient (VCO2/VO2)	0.75 ± 0.02	0.87 ± 0.05 *

* = Significant (p < 0.01) between monkeys who were non-eaters and eaters