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.
A, preovulation, follicles large developed but not ovulated; B, periovulation, follicles partly ovulated; and C, postovulation, follicles all ovulated. Surrogate gilts during periovulation were suitable for pig cloning.
