What do white mice eat?

What do white mice eat? - briefly

White laboratory mice are fed a nutritionally complete pellet that contains corn‑based starch, soy protein, vitamins, and minerals, with occasional fresh fruits, vegetables, or insects as supplements. In the wild, their diet consists of seeds, nuts, grains, and small arthropods.

What do white mice eat? - in detail

Albino laboratory mice are omnivorous rodents with a diet that emphasizes high‑quality protein, moderate fat, and low‑fiber carbohydrates. Commercial rodent chow, formulated to meet the nutritional requirements of the species, supplies the bulk of their intake. Typical components include:

  • Protein sources: soy meal, casein, and fish meal, providing 18–20 % crude protein.
  • Carbohydrate sources: corn starch, wheat flour, and sucrose, delivering rapid energy.
  • Fat sources: soybean oil or lard, contributing 4–5 % metabolizable energy.
  • Vitamins and minerals: premixed premix containing vitamin A, D3, E, K, B‑complex, calcium, phosphorus, and trace elements such as zinc and iron.
  • Fiber: cellulose or oat hulls, limited to 5 % to prevent gastrointestinal distress.

In addition to the standard pellet, mice may consume:

  • Fresh vegetables: small portions of carrots, broccoli, or leafy greens, offering additional vitamins and antioxidants.
  • Fruits: occasional pieces of apple or banana, providing simple sugars.
  • Treats: low‑fat cheese, boiled egg, or commercial mouse treats, used sparingly for enrichment.

Water is available ad libitum, typically via a calibrated bottle to ensure constant access and prevent contamination.

Nutrient balance is critical for growth, reproduction, and experimental consistency. Deficiencies in essential amino acids, vitamin D, or calcium can impair bone development and immune function, while excess fat may lead to obesity and metabolic disturbances. Monitoring feed consumption and adjusting formulations for specific research protocols—such as high‑fat diets for metabolic studies—ensures that dietary variables remain controlled.