Home
Back
DER Formula:
| From: | To: |
The DER (Daily Energy Requirement) formula calculates the daily calorie needs for dogs based on their body weight and activity level factor. This formula is commonly used in veterinary nutrition to determine appropriate feeding amounts.
The calculator uses the DER formula:
Where:
Explanation: The formula accounts for the metabolic rate scaling with body weight using the 0.75 exponent, which is standard in veterinary nutritional calculations.
Details: Accurate DER calculation is essential for maintaining optimal dog health, preventing obesity, and ensuring proper nutrition for different life stages and activity levels.
Tips: Enter the dog's weight in kilograms and select an appropriate factor based on activity level (1.2 for sedentary, 1.6 for active, 2.0 for highly active). All values must be valid (weight > 0, factor > 0).
Q1: What factors should I use for my dog?
A: Typical factors range from 1.2 for sedentary dogs to 2.0 for highly active working dogs. Puppies and pregnant/lactating dogs may require higher factors.
Q2: How often should I recalculate my dog's DER?
A: Recalculate whenever your dog's weight changes significantly or if their activity level changes substantially.
Q3: Is this formula suitable for all dog breeds?
A: While the formula works for most breeds, some giant or toy breeds may require adjustments. Consult with a veterinarian for breed-specific recommendations.
Q4: What if my dog is overweight or underweight?
A: For weight management, use the ideal body weight rather than current weight, and adjust the factor accordingly. Consult a veterinarian for a weight management plan.
Q5: How accurate is this calculation?
A: This provides a good estimate, but individual variations exist. Monitor your dog's body condition and adjust feeding amounts as needed.