Table 3.
Individual mean (±SEM) progestagens, cortisol, and prolactin concentrations in pregnant and cycling elephants.
| Status | Elephant | Progestagens (ng/mL) | Cortisol (ng/mL) | Prolactin (ng/mL) | |
|---|---|---|---|---|---|
| Pregnant | E1 | 3.06 ± 0.21 b | 1.08 ± 0.13 b | 16.61 ± 2.77 a | |
| E2 | 3.81 ± 0.30 c | 0.54 ± 0.06 a | 20.07 ± 3.15 a | ||
| E3 | 2.86 ± 0.22 b | 0.73 ± 0.13 ab | 27.64 ± 3.84 b | ||
| E4 | 1.53 ± 0.09 a | 1.05 ± 0.14 b | 18.41 ± 2.81 a | ||
| Cycling | Follicular phase | Luteal phase | |||
| E5 | 0.01 ± 0.01 a | 0.39 ± 0.04 a | 0.63 ± 0.09 a | 20.95 ± 1.42 d | |
| E6 | 1.91 ± 0.16 c | 6.39 ± 1.15 c | 13.82 ± 1.32 c | 1.09 ± 0.08 a | |
| E7 | 0.39 ± 0.02 b | 1.41 ± 0.22 b | 1.66 ± 0.17 b | 2.90 ± 0.16 c | |
| E8 | 0.34 ± 0.06 b | 3.11 ± 0.56 bc | 2.07 ± 0.28 b | 1.47 ± 0.11 a | |
| E9 | 0.16 ± 0.03 ab | 1.09 ± 0.19 b | 1.61 ± 0.15 b | 1.93 ± 0.09 b | |
a,b,c,d Column values across individual elephants are significantly different (p < 0.05).