Table 2.
Effect of prenatal low dose DBP exposure on male-type sexual behavior in male rats of 18-month age
| Feature | First test | Second test | ||
|---|---|---|---|---|
| Control (n = 6, 2 of them sexually passive) | DBP (n = 5, 1 of them sexually passive) | Control (n = 5) | DBP (n = 5) | |
| Latency period, s | ||||
| First mount | 53.7 (7–100) | 63.5 (11–147) | 27.0 (1–60) | 27.0 (18–39) |
| First intromission | 299.7 (76–900) | 101.0 (35–240) | 51.4 (18–138)** | 478.8 (42–878)* |
| First ejaculation | 751.7 (307–900) | > 900* | 223.4 (125–349)** | > 900* |
| Post-ejaculatory refractory period | 823.2 (593–900) | > 900* | 347.0 (205–530)** | > 900* |
| Number | ||||
| Mounts without intromission | 5.5 (4–8) | 5.0 (4–7) | 6.6 (5–7) | 2.8 (1–5)* |
| Mounts with intromission | 7.5 (0–19) | 5.5 (1–9) | 24.8 (20–32)** | 2.6 (0–5)* |
| Ejaculations | 0.2 (0–1) | 0 (0)* | 1.8 (1–3)** | 0 (0)* |
n number of rats in the group. The test lasted 15 min. Minimum and maximum figures are presented in the brackets. Statistical analysis by Wilcoxon–Mann–Whitney non-parametric U-criterion
*p ≤ 0.01, p ≤ 0.05 compared to controls
**p ≤ 0.01, p ≤ 0.05 compared to the first test