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Effects of sustained cortisol on GnRH and LH pulses in natural follicular phase
| Treatment | Frequency (pulses/10 h) | Amplitudea |
|---|---|---|
| GnRH | ||
| Vehicle | 12.4 ± 2.3 | 1.05 ± 0.2 |
| Cortisol | 6.83 ± 1.0b | 1.84 ± 0.2b |
| LH | ||
| Vehicle | 9.6 ± 0.8 | 1.14 ± 0.2 |
| Cortisol | 6.0 ± 0.7c | 1.05 ± 0.2 |
Values are mean ± sem for five vehicle and six cortisol-treated ewes.
Amplitude expressed as pg/min for GnRH and ng/ml for LH.
Treatment effect (P < 0.05).
Treatment effect (P < 0.01).
