1. What is the MER Equation?

The MER (Maintenance Energy Requirement) equation estimates the daily calorie needs for dogs based on their weight and activity level. This calculation is specifically designed for Purina Pro Plan nutritional recommendations.

2. How Does the Calculator Work?

The calculator uses the MER equation:

Where:

• \( weight_{kg} \) — Dog's weight in kilograms
• \( factor \) — Activity level multiplier (1.0 to 2.0)

Explanation: The equation accounts for metabolic scaling where smaller animals have higher metabolic rates per unit of body weight.

3. Importance of MER Calculation

Details: Accurate MER estimation is crucial for maintaining optimal weight, preventing obesity, and ensuring proper nutrition for dogs.

4. Using the Calculator

Tips: Enter weight in kilograms and select the appropriate activity factor based on your dog's lifestyle and goals (weight maintenance, loss, or gain).

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: This provides a good starting estimate, but individual needs may vary by ±20% based on metabolism, environment, and health status.

Q2: How should I convert my dog's weight from pounds to kilograms?
A: Divide pounds by 2.205 to get kilograms (e.g., 20 lbs ÷ 2.205 = 9.07 kg).

Q3: What if my dog is overweight?
A: Use the weight loss factor (1.4) and calculate based on ideal weight, not current weight.

Q4: How often should I recalculate MER?
A: Recalculate whenever your dog's weight changes by 10% or more, or if their activity level significantly changes.

Q5: Can this be used for puppies?
A: Puppies have higher energy needs - consult your veterinarian for appropriate feeding guidelines.