Feline Resting Metabolic Rate Calculator
Here’s a comprehensive table summarizing the key aspects of Feline Resting Metabolic Rate (RMR):
| Parameter | Details |
|---|---|
| Definition | The amount of energy a cat requires at rest, without activity. |
| Importance | Helps determine caloric needs for maintenance, weight loss, and gain. |
| Formula for RER | RER (kcal/day) = 30 x (body weight in kg) + 703 |
| Alternative Formula | For small cats: 70 x (body weight in kg)^0.753 |
| Normal RER values | Approximately 60 to 130 kcal/kg body weight per day |
| Factors Affecting RER | Age, health status, neuter status, body composition6 |
| Measurement Methods | Indirect calorimetry, formulations based on body weight |
| Applications | Used to calculate food portions and dietary needs for cats |
| Differences in Cats | Cats have unique metabolic rates based on breed, age, and health conditions |
| Daily Energy Requirement (DER) | DER = RER x Life Stage Factor3 |
| Life Stage Factors | Kitten: 2.5, Adult Neutered: 1.2, Adult Intact: 1.43 |
| Least Observed Metabolic Rate | Approximately 39 ± 1 kcal/kg/day in neutered normal-weight cats1 |
| Energy Expenditure Calculation | EE (kcal/d) = [3.94 x O2 exchange (L/h) + 1.11 CO2 exchange (L/h)] x 24 h1 |
| Maintenance Energy Requirement | 77.6 kcal/kg BW^-0.711 (for all cats)5 |
| Effect of Neutering | May decrease energy requirements by 20-30%5 |
| Impact on Health | Proper understanding of RMR helps maintain healthy weight and prevent obesity-related issues6 |
This table provides a comprehensive overview of feline Resting Metabolic Rate, including its definition, calculation methods, factors affecting it, and its importance in feline nutrition and health management.