Effects of Reducing Insemination Time in Human In Vitro Fertilization and Embryo Development by Using Sibling Oocytes

Purpose: Recent studies showed a beneficial effect of reducing the time of sperm–oocyte interaction on fertilization, division, and implantation rates of the oocytes obtained from randomized patients. In the present study, the effects of reduced insemination time on fertilization and embryo development were evaluated by using sibling oocytes from the same patient.