1. What is the MER Equation?

The MER (Maintenance Energy Requirement) equation calculates daily calorie needs for animals based on their weight and activity level. It's commonly used in veterinary medicine to determine appropriate food portions.

2. How Does the Calculator Work?

The calculator uses the MER equation:

Where:

• \( W \) — Weight in kilograms
• \( F \) — Activity factor (dimensionless)

Explanation: The equation accounts for the non-linear relationship between body weight and metabolic rate, with different activity factors for different life stages and activity levels.

3. Importance of MER Calculation

Details: Accurate MER estimation is crucial for maintaining optimal body condition, preventing obesity or malnutrition, and supporting recovery in sick animals.

4. Using the Calculator

Tips: Enter weight in kilograms and select the appropriate activity factor based on the animal's life stage and activity level.

5. Frequently Asked Questions (FAQ)

Q1: What are typical activity factors?
A: Common factors are 1.0 for neutered adults, 1.2 for intact adults, 1.4 for working dogs, 1.6 for growing animals, and 0.8 for weight loss programs.

Q2: How often should MER be recalculated?
A: Whenever the animal's weight changes significantly (≥10%) or their activity level changes substantially.

Q3: Is this equation suitable for all species?
A: This equation is primarily for dogs. Cats and other species may require different calculations.

Q4: What about pregnant or lactating animals?
A: These animals typically need 1.6-2.0 times the MER for maintenance, depending on stage of pregnancy/lactation.

Q5: Should this be the only factor in diet planning?
A: No, individual factors like health status, environment, and specific nutritional needs should also be considered.