1. What is the MER Equation?

The Maintenance Energy Requirement (MER) equation estimates the daily calorie needs of cats based on their weight and activity level. It's essential for maintaining optimal weight and health in feline companions.

2. How Does the Calculator Work?

The calculator uses the MER equation:

Where:

• \( weight_{kg} \) — Cat's weight in kilograms
• \( activity\_factor \) — Multiplier based on activity level (1.2-2.0)

Explanation: The equation accounts for the metabolic rate scaling with body weight (to the 0.75 power) and adjusts for different activity levels.

3. Importance of Calorie Calculation

Details: Proper calorie estimation helps prevent obesity (a major feline health issue) or underfeeding, both of which can lead to serious health problems.

4. Using the Calculator

Tips: Weigh your cat accurately (use a pet scale if possible). Select the activity level that best matches your cat's lifestyle. Remember this is an estimate - individual needs may vary.

5. Frequently Asked Questions (FAQ)

Q1: Why use the 0.75 power for weight?
A: Metabolic rate doesn't scale linearly with weight. The 0.75 exponent reflects how metabolism scales with body size in animals.

Q2: What if my cat needs to gain or lose weight?
A: For weight loss, feed 80% of MER. For weight gain, feed 120-150% of MER. Always consult your vet for weight management plans.

Q3: How often should I recalculate my cat's needs?
A: Recalculate whenever your cat's weight changes by 10% or more, or if their activity level changes significantly.

Q4: Are there limitations to this equation?
A: Less accurate for very young kittens, extremely obese cats, or cats with certain medical conditions affecting metabolism.

Q5: Should I feed exactly the MER amount?
A: MER is a starting point. Monitor your cat's weight and adjust as needed. Senior cats may need fewer calories than the equation suggests.