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.
Effects of melatonin on IVF embryo developmental potential and cell number of blastocysts. (A) Epifluorescence photomicrographs of in vitro-produced bovine blastocysts. COCs, cumulus–oocyte complexes; IOs, inferior bovine oocytes; MT, melatonin; scale bar = 100 μm; (B) Nuclear staining of bovine blastocyst after IVF in different groups. Scale bar = 20 μm.
