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This table is based upon a dog's Resting Energy Requirements or RER. The RER is the basic amount of energy that a dog would use in a day while remaining at rest. The formula to calculate RER for animals between 2 and 45 kg (5 - 99 pounds) is: RER in kcal/day = 30(body weight in kilograms) + 70. Any activity or variable other than rest will require an increase in energy (RER) and an increase in calories to meet the energy needs. Realize that these numbers are not a reflection of maintenance calories but of resting energy levels.
1 aim: to use formula to estimate metabolic rate at rest, and from that a daily energy expenditure. 2  equipment required: calculator, and scales for weight and tape measure for height. 3  procedure: See the procedures for height and weight. 4  Use the formula below to determine BMR, and daily energy expenditure.