Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Evaluation of in vitro fertilization (IVF). The fertilization index (or mean ± SEM of sperm number fused by egg) was assessed by zona-free IVF assay at 105 (B6 and Rc3 sperm) or 106 (Rc3 sperm 10×) sperm per mL. Experiments were repeated at least three times. ( ): number of oocytes. ns: non significant. ****: p < 0.0001.
