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.
Answers.comÂ® is making the world better one answer at a time. Mice reach sexual maturity as early as 5-6 weeks old but I do not recommend breeding them until they are 10-12 weeks old because breeding them at an early age can cause serious problems such as stunted growth, death, and failure to give birth to all of the litter. Was this answer useful? Gerbsx3.