House mouse (Mus musculus)

House mouse (Mus musculus) is a small mammal rodent synanthropic small, gray, sharp nose, who lives near human settlements on the human farms, industrial construction, silos, warehouses feed, food and textile mills premises etc. They build nests lined with soft material underneath stacks in warehouses, barns, warehouses, storehouses, bridges etc. House mouse is spread on all continents and climbed up to 2700 m altitude where there are human constructions. In Romania Mus musculus musculus subspecies is found throughout the country in addition to housing, from the plain to the mountain gap. Summer mice migrate some open fields, cultivated or fallow without winter here.

It has a length of 7-10 cm (head + trunk) and a weight of 10-20 g. It lives up to a year and a half. It has short snout, small eyes, long vibrizele and hind legs shorter than the previous ones. The incisors of the upper jaw have an edge lace. Fingers thin and fragile nails. It is a good runner and climb easily. It is an omnivorous species and feeds mainly on seeds of cereals and industrial plants, and food found in homes. Having enough food available, not make reservations for the winter season. He lives in pairs, fiercely defending their territory. Do not hibernate and is active all year. Mice living in homes in quiet places are active day and night rummage everywhere; those who migrated in the field, are active only at night. They breed throughout the year. Gestation lasts 20-21 days. The female gives birth to 6-7 times a year, how many naked chicks 3-10 who are breastfed 3-4 weeks. Reach sexual maturity at two months after birth.

House mice produce large losses in housing chambers, grain stores, food warehouses. Dirty and infected with various pathogens and foods such forward human and animal infectious diseases and helminthosis house. It hurts more than it consumes food and prints a strong smell of urine. Individuals migrating summer field crops produce damage during harvest.