1. What is RER and MER?

RER (Resting Energy Requirement) is the number of calories a dog needs at complete rest. MER (Maintenance Energy Requirement) is the actual daily calorie need considering activity level and life stage.

2. How Does the Calculator Work?

The calculator uses these equations:

Where:

• \( weight_{kg} \) — Dog's weight in kilograms
• \( factor \) — Multiplier based on activity level and life stage

Explanation: The equation accounts for metabolic scaling where larger animals need relatively fewer calories per kilogram than smaller animals.

3. Importance of Calorie Calculation

Details: Proper calorie calculation helps maintain ideal weight, supports growth in puppies, and prevents obesity-related health issues.

4. Using the Calculator

Tips: Weigh your dog accurately. Select the appropriate factor based on activity level and life stage. Monitor weight and adjust as needed.

5. Frequently Asked Questions (FAQ)

Q1: How often should I recalculate my dog's calorie needs?
A: Recalculate whenever weight changes by 10% or more, or if activity level/life stage changes significantly.

Q2: What if my dog is overweight?
A: Use the weight loss factor (1.3) and aim for 1-2% body weight loss per week. Consult your vet for severe cases.

Q3: Are there breed-specific differences?
A: Some breeds may have higher or lower metabolic rates. Working breeds often need the higher end of MER ranges.

Q4: What about senior dogs?
A: Generally use the neutered adult factor (1.2), but some seniors may need less due to decreased activity.

Q5: How accurate is this calculation?
A: It provides a good starting point, but individual needs vary. Monitor body condition and adjust as needed.