How much food should be given to a rat per month? - briefly
An adult rat typically needs about 20–30 g of a nutritionally balanced dry feed daily, which equals roughly 600–900 g per month. Adjust the quantity according to the animal’s size, activity level, and the specific caloric density of the diet.
How much food should be given to a rat per month? - in detail
Rats require a diet that supplies approximately 15–20 kcal per 100 g of body weight each day. For an adult laboratory or pet rat weighing 300–350 g, the daily caloric demand ranges from 45 to 70 kcal. Commercial rodent pellets contain about 3.5 kcal per gram; therefore, a rat of average size needs roughly 13–20 g of pellets daily.
Multiplying by 30 days gives a monthly requirement of 390–600 g of standard pellets. If the diet includes a mix of fresh produce, protein supplements, and treats, the total dry matter may be reduced proportionally, but the caloric intake must remain within the same range.
Key factors influencing the amount:
- Body weight: heavier rats consume more calories.
- Age: juveniles grow rapidly and need up to 25 kcal/100 g; seniors may require slightly fewer calories.
- Activity level: highly active rats (e.g., those with running wheels) may need an extra 10–15 % food.
- Diet composition: high‑fiber or low‑fat pellets have lower energy density, requiring larger quantities to meet caloric needs.
Practical feeding plan:
- Weigh the rat weekly; adjust pellet portion to maintain target weight.
- Provide 13–20 g of pellets per day, measured with a kitchen scale.
- Offer 10–15 g of fresh vegetables (e.g., carrots, broccoli) daily for moisture and micronutrients.
- Add 1–2 g of protein source (cooked egg, mealworms) twice a week.
- Record consumption; if leftovers exceed 20 % of the offered amount, reduce the portion accordingly.
By adhering to these guidelines, the total monthly food volume for a typical adult rat will fall between 400 g and 650 g of combined dry and fresh components, ensuring adequate nutrition without excess.