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Figure 2 | Reproductive Biology and Endocrinology

Figure 2

From: LH pulse frequency and the emergence and growth of ovarian antral follicular waves in the ewe during the luteal phase of the estrous cycle

Figure 2

The characteristics of pulsatile LH secretion (mean and basal serum LH concentrations and LH pulse amplitude and frequency; mean ± SEM) determined from serum samples collected every 12 min for 6 h on Day 7 (black bars), Day 9 (light gray bars) and Day 11 (dark grey bars) after ovulation in cyclic Western White Face ewes. Starting on Day 7 after ovulation, ewes were treated with GnRH (200 ng; IV; treatment group) or saline (control group) every hour for 96 h. Letters (a-b) indicate differences between control ewes and ewes treated with GnRH (P < 0.001) within the respective intensive sampling period. Letters (x-y) indicate differences between the days of intensive blood sampling (P < 0.001) for control ewes or ewes treated with GnRH. [n = 6 (control), n = 7 (treatment)].

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