How much should you feed a pet rat? - briefly
A typical adult rat requires roughly ¼–⅓ cup of quality pellet food each day, supplemented with a small portion of fresh vegetables and occasional fruit. Adjust the amount according to the animal’s weight, activity level, and body condition.
How much should you feed a pet rat? - in detail
A healthy rat requires a balanced diet that supplies enough calories without leading to obesity. The total daily intake depends on age, body weight, activity level, and reproductive status.
Adult rats (150–300 g) typically need 15–20 g of mixed food per day. Juveniles (under 8 weeks) require 10–12 g, increasing as they approach adult size. Pregnant or lactating females may need up to 25 g to support fetal growth and milk production.
The diet should consist of three components:
- Base mix – commercially formulated rat pellets, measured in grams. This provides protein (15–20 % of the mix), fiber, vitamins, and minerals. Feed the calculated amount of pellets each day.
- Fresh vegetables – low‑calorie greens such as kale, romaine lettuce, carrots, and broccoli. Offer 1–2 tbsp (approximately 5–10 g) per rat, removing uneaten portions after a few hours.
- Treats and supplements – occasional fruits (apple, pear), nuts, or boiled egg. Limit to 5 % of total caloric intake, roughly 1 g per day, to avoid excess fat.
Feeding schedule: provide the measured portion of pellets in the morning, supplement with fresh produce later in the day, and remove any leftovers before the next morning. Consistent timing helps maintain stable metabolism.
Monitor body condition by feeling the spine and ribs; a slight cover of flesh indicates proper nutrition. Adjust portions upward if the rat loses weight or appears lethargic, and reduce if the animal becomes visibly plump. Regular veterinary check‑ups can verify that nutrient requirements are being met.