Figure 3From: A study of the prostate, androgens and sexual activity of male ratsTestosterone in serum after consecutive ejaculations. The graph shows the basal level of testosterone in sexually experienced male rats before entering a sexual test (white bar). No effect was observed in this level after one ejaculation. However, the level increased to the highest value after the second and subsequent ejaculations. ** = p < 0.01.Back to article page