Ontogeny of mRNA abundances of pituitary PRL (a), LH (b), and FSH (c) in fetal sheep throughout the latter half of gestation (80, 100, 120, 130, and 145 days of gestation) and in lambs (1 and 7 days postnatally). Data are reported as mean values of relative expression levels ± SEM at each developmental age (n = 4–5/ group). Superscripts ‘a’, ‘b’, ‘c’, and ‘d’ represent statistically significant difference compared to 80, 100, 120, and 130 days, respectively.