What to do if a mouse has given birth? - briefly
Supply a clean, insulated nest with ample food, water, and nesting material, and keep the enclosure quiet and predator‑free. Refrain from handling the newborns for the first 3–5 days to allow the mother to care for them.
What to do if a mouse has given birth? - in detail
When a female mouse delivers her litter, immediate attention to the nest, the mother, and the newborns is essential for survival.
First, verify that the nest is secure and insulated. The female typically builds a shallow depression lined with shredded paper, tissue, or soft bedding. Add a small amount of clean, dry material if the nest appears sparse, but avoid disturbing the arrangement. Excess bedding can cause the mother to reject the pups.
Second, limit human interaction. The mother will instinctively care for the young; handling the pups can trigger stress responses and may lead to abandonment. Observe from a distance, ensuring the environment remains quiet and free from sudden movements.
Third, monitor temperature. Newborn mice cannot regulate body heat. Maintain ambient temperature between 70 °F and 78 °F (21 °C–26 °C). If the room is cooler, place a low-wattage heat source (e.g., a heating pad set on low) beneath half of the cage, allowing the mother to move pups to a cooler side as needed.
Fourth, provide unrestricted access to food and water. Place fresh food pellets and a water bottle near the nest but not directly on it to prevent contamination. High‑protein diets, such as those containing soy or mouse chow formulated for breeding, support lactation.
Fifth, inspect for signs of distress. Look for excessive licking of the mother’s genitals, lack of nursing behavior, or discolored, limp pups. If any pup appears unresponsive, gently stimulate it with a soft brush. Persistent lack of movement may indicate a health issue requiring veterinary intervention.
Sixth, schedule a health check after the first week. At this stage, the mother’s nipples should be swollen and milk production evident. Weigh the litter collectively; a stable or increasing weight signals adequate nutrition.
Finally, plan for post‑weaning. Around three weeks of age, pups will begin to explore outside the nest. Gradually introduce enrichment items—tunnels, chew sticks, and climbing structures—to promote normal development and prevent aggression later.
Following these steps ensures the mother and her offspring receive the conditions necessary for a successful birth and early growth.