[The effect of chronic ionizing radiation at low doses on a number of reproductive indices in CC57W/Mv mice from an experimental Chernobyl population].

The effects of low doses of environmental ionizing radiation on reproductive functions of seven generations of CC57W/Mv mice from Chernobyl experimental population has been investigated. A decrease in the number of litters per female during reproductive period, the number of newborn animals per litter, and an increase in the postnatal mortality during the first month of life were shown. These effects are due to the stable disorders of parental reproductive system and the high level of in-vivo preimplantation deaths in F1--F7 generations of CC57W/Mv mice from the Chernobyl experimental populations.