The stomach has three types of contractions: There are rhythmic, 3 per minute, synchronized contractions in the lower part of the stomach, which create waves of food particles and juice which splash against a closed sphincter muscle (the pyloric sphincter) to grind the food into small particles.
7 What is the gestation period, how many babies do they have, and when are they weaned? 1  The gestation period for rats is 19â22 days, for mice it is 17â21 days.  Rats and mice average 8â12 babies in a litter, but can have as few as 1 or as many as 20.
Keep the temperatures between 50 and 80 degrees, and the mice will have babies every 25-28 days or so, so you'll have consistent Bearded dragon food. The litters are usually between 8 and 15. Its a good way to save money, because feeder mice range anywhere from $1 to $3 each.