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.
The hatching (A), heart (B), and survival (C) rate of embryos was determined at the designate time. Values = means ± SD of three independent experiments. Bars of group labelled with different letters (a, b) denote significant differences (p < 0.05).
