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.
Overview of Reproductive Process. As mice breed throughout the year, a single female produces between five and 10 litters annually. Each brood can contain up to 12 young, but the average litter size hovers around five or six babies. Young mice grow quickly and usually only need three weeks before they're fully weaned from their mothers. The pests achieve sexual maturity after five to seven weeks.