How many times a day should a newborn rat be fed during its first month?

How many times a day should a newborn rat be fed during its first month? - briefly

Newborn rat pups require approximately 4 to 6 feedings each day, spaced about every 3–4 hours, throughout their first month.

How many times a day should a newborn rat be fed during its first month? - in detail

Newborn rats require frequent nourishment because their stomachs are tiny and their metabolic rate is high. During the first seven days, feeding should occur every 2–3 hours, which translates to 8–12 meals per day. Milk replacer formulated for rodents, warmed to body temperature, should be offered in volumes of 0.2–0.3 ml per pup per feeding.

From day 8 to day 14 the interval can be extended to every 4 hours. This reduces the daily count to 6–8 feedings. Increase the portion to 0.4–0.5 ml per pup, ensuring that each intake is still fully consumed within a few minutes.

Between day 15 and day 21, feedings every 6 hours are sufficient. Provide 0.6–0.8 ml per pup, and begin introducing a small amount of soft, high‑protein mash (e.g., boiled egg yolk mixed with a few grains) alongside the milk replacer.

From day 22 through the end of the first month, schedule 4 meals per day at roughly 6‑hour intervals. Offer 1.0–1.2 ml of milk replacer plus a larger portion of solid food such as finely ground rodent chow, soaked briefly to soften it. By day 30 most pups should be fully weaned and capable of maintaining body weight on solid diet alone.

Key points to monitor:

  • Body weight gain of at least 2–3 g per day in the first two weeks.
  • Clean, dry bedding after each feeding session to prevent contamination.
  • Consistent temperature (29–30 °C) to reduce stress and maintain appetite.

Adjust quantities if any pup shows signs of under‑feeding (weight loss, lethargy) or over‑feeding (diarrhea, bloating). Regular weighing and observation are essential for optimal growth during this critical period.