The effect of early hypoxy upon the development of rats and mice. II. Foetal effects

The late, foetal effect of temporary hypoxy--performed by uterine vascular clamping--during the preimplantation period (day 2, 3 and 4 of pregnancy) was controlled in rats. The main detected effects were: lowering of the number of implantation sites and of the mean number of living foetuses; lowering of the mean foetal weight: increased percentage of resorptions and partial retardation of skeletal development. No structural anomalies were registered.