Pregnant days of  BM cells transplantation Preimplantaion embryo survival, % Postimplantation embryo survival, % without transplantation of BMC 94.2 ± 2.4 94.8 ± 2.7 transplantation of BMC at 4-5 day of pregnancy 72.3 ±8.5 45.0 ± 15.4 transplantation of BMC at 7-8 day of pregnancy 96.6 ± 2.1 97.8 ± 2.4 transplantation of BMC at 11-12 day of pregnancy 89.3 ± 6.7 71.7 ± 11.8

Table 2: Pre- and post implantation survival of rat’s fetusis of 18th day of pregnancy after transplantation of mononuclear bone marrow cells (BMC) during early stages of pregnancy (%).