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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.
Stated another way, resting metabolism is the minimum number of calories your body needs each day to function efficiently, even if you rested in bed all day. Resting metabolism may also be referred to as resting metabolic rate or resting energy expenditure.our resting metabolism is the amount of energy (calories) your body needs each day to perform essential functions such as maintaining your: 1  Breathing. 2  Body temperature. 3  Heart beat. 4  Brain function.