in the United States. Established in 1903, under the presidency of Her Majestyâs Minister at Washington, D.C., W.A.F. Baron Gevers, the chamber has promoted commerce between the Netherlands and the U.S. for more than a century.
Complete Physical Maturity: Mice are not done growing until they are between 3 and 5 months of age, depending on the line. Mice should NEVER be bred until they are at least 12 weeks age. If you don't know the line really well, wait until at least 12 weeks, if not longer.wild mice live longer.. around 5 years in captivity, though only around 6 months in the wild due to predators and environmental factors). Maturity: 4 - 8 weeks of age, varying from line to line and mouse to mouse.
Mice are capable of producing six to eight babies in each litter, sometimes as many as ten. The biggest problem with mice is that they have multiple litters each year. One male and female mouse can produce up to 40 babies in one year. Multiply that by the fact that each litter will start producing babies as well within the year and you can see how quickly a couple of mice can get out of control. In just that first year those original mice can product up to 139.