The average life span of macaroni mice is 3 to 5 years, and the overall life span of artificial feeding can be 5 to 8 years. In the wild, they may be slightly younger than those raised artificially.
Macaroni mice are basically adults when they are 2 months old, and they can reproduce all year round when they are raised artificially. Pregnancy is 19 days. Their average litter size is 3 to 9, and they are weaned in about 3 to 4 weeks. The artificially raised macaroni mice are particularly patient, and the female gerbils will actively take care of and feed their children and protect their children. But they will attack or even kill her partner's male, so it is best to keep the male gerbils in separate cages after mating. The pregnancy rate of macaroni rats is much lower than that of other gerbils.