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 changes of plasma reproductive hormone levels in sows at different stages of pregnancy. PRL: prolactin; PROG: progesterone; LH: luteinizing hormone; FSH: follicle-stimulating hormone; E2: estradiol. P45, P75, and P105 mean days 45, 75, and 105 of pregnancy, respectively. The same as below. Data show the means ± SEM. A,B indicates statistically significant differences (P < 0.05). n = 6‐8 per group.
