Diurnal Variation of Serum Androgen and Estradiol-17β in the Adult Male Green Monkey (Cercopithecus sp)

Abstract
Adult male african green monkeys (vervets) had diurnal fluctuations in serum androgen and estradiol-17.beta. concentrations. Peak values for total androgen were obtained between 2100 and 0600 h while peak values for estradiol were found between 2400 and 0600 h.