Fig. 5.

Neonatal birth weight distribution following E2-treated blastocysts transferred into uterus. E2 exposure and no-exposure at the blastocyst stage for 24 h in vitro followed by embryo transfer. 18-day fetuses were collected from the surrogate mice on day 14 post-transfer. Weight distribution of surviving fetuses was analyzed by three subgroup of birth weight. Data were collected from 41 surviving fetuses in the control group and 7 surviving fetuses in the treatment group.