What does a white mouse eat in captivity? - briefly
«A captive white mouse requires a diet of high‑quality rodent pellets supplemented with small amounts of fresh vegetables, fruits, and occasional protein treats such as boiled egg or mealworms.» «Clean drinking water must be available at all times.»
What does a white mouse eat in captivity? - in detail
Albino laboratory mice kept under controlled conditions require a nutritionally complete diet that supplies protein, essential fatty acids, fiber, vitamins and minerals in proportions that support growth, reproduction and immune competence.
A standard commercially prepared pellet or mash formulated for rodents delivers a balanced nutrient profile. Typical composition includes 18‑20 % protein, 4‑6 % fat, 4‑5 % fiber, and added vitamins A, D, E, K, B‑complex and trace minerals such as zinc, selenium and iron. Pellets are sterilized, shelf‑stable and eliminate the risk of uneven nutrient intake.
Fresh produce complements the base diet by providing additional micronutrients and hydration. Recommended items, offered in small, bite‑size pieces, are:
- carrots, cucumber, zucchini, broccoli florets, spinach leaves;
- apple (seedless), pear, banana, berries (limited due to sugar content);
- occasional sprouted beans or alfalfa.
All vegetables and fruits should be washed thoroughly and free of pesticide residues.
Protein enrichment is achieved through supplemental sources:
- dried insects (crickets, mealworms) – 2‑3 % of daily intake;
- boiled egg white – a few small pieces, no more than 0.5 g per mouse;
- soy or fish meal incorporated into pellets.
These items supply essential amino acids and promote muscle development.
Treats and mineral supplements are used sparingly to prevent obesity and dental problems. Acceptable options include:
- small pieces of unsalted sunflower or pumpkin seed;
- a calcium block or mineral lick, refreshed weekly;
- occasional low‑fat cheese or yogurt (no more than one teaspoon per week).
Feeding frequency should reflect the animal’s size and activity level. Adult mice are typically provided with continuous access to dry diet and fresh water, while fresh foods are refreshed daily. Cage cleaning occurs at least once weekly; uneaten perishable items are removed to prevent spoilage and bacterial growth.
Monitoring body condition, coat quality and fecal consistency ensures that the diet meets physiological demands. Adjustments to protein or fiber levels are made based on growth rates, breeding status or health assessments.