Pet Food Alliance Calorie Equations:
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The Pet Food Alliance Calorie Calculator estimates the daily calorie needs for pets based on their weight and activity level. It calculates both Resting Energy Requirement (RER) and Maintenance Energy Requirement (MER).
The calculator uses the following equations:
Where:
Explanation: The equation accounts for metabolic scaling where smaller animals have higher metabolic rates per unit body weight than larger animals.
Details: Accurate calorie estimation is crucial for maintaining healthy weight, supporting growth in young animals, and managing weight loss or gain programs.
Tips: Enter weight in kilograms and select the appropriate activity factor based on your pet's life stage and condition.
Q1: What is RER vs MER?
A: RER (Resting Energy Requirement) is calories needed at complete rest, while MER (Maintenance Energy Requirement) includes activity and life stage factors.
Q2: How accurate is this calculator?
A: It provides estimates based on average metabolic rates. Individual pets may vary by ±20% due to factors like breed, body composition, and environment.
Q3: What if my pet is overweight?
A: Use the weight loss factor (1.6) and calculate based on ideal weight, not current weight. Consult your veterinarian for a weight loss plan.
Q4: Can I use this for all pets?
A: This is primarily for dogs and cats. Other species may require different calculations.
Q5: How often should I recalculate?
A: Recalculate whenever your pet's weight changes significantly or their life stage/activity level changes.