Basic Nutrition and Dietary Information
>> Mice from an untracked line should be receiving about 15% protein in their daily diet. It is also recommended to offer occasional meat protein to their diet.
A base diet should be offered for the mice at all times. Mice will not overeat or gorge themselves. Fill their food dish and only refill when the level is low again. A good base diet is a premixed food you can purchase at pet stores simulates a more natural diet for mice. Another alternative is lab blocks or large pellets of ground feed. Blocks can be boring for mice to eat, but are a nice because the mouse cannot pick out certain foods from a premixed feed, skipping important parts of its diet. Whichever you choose be sure to read the ingredients. Remove sunflower seeds and peanuts from any premixed diets before giving serving them. Most mice do not need over 16% crude protein in their diets unless they are well tracked and bred lines. Some of that protein should come from meat (options listed below). Other fresh foods (below) should be offered as special treats a few times a week.
This list was found on the Fancy Mouse Breeders forum.
Do not give your mouse cabbage, chocolate, corn, candy, junk food, peanuts, uncooked beans, or onions.
Fresh foods should be removed if not eaten within 2 hours.
A single mouse will consume 2 tablespoons of food a day. A base food should be available at all times and fresh foods (listed) should be offered twice a week. <<