Figure 6.

Mean (±SEM) for LH concentrations (A), LH pulse amplitude (AMPL; B), and LH pulse frequency (FREQ; C) for saline (open bars) and UFP-101 (black bars) infused into the lateral ventricle of OVX+E₂ breeding season (Br Sea) (n = 8) and ovary-intact anestrous (anestrus; n = 6 for mean LH and pulse frequency). LH pulse amplitudes were not statistically analyzed in anestrous ewes due to low animal numbers (n = 3), because many ovary-intact anestrous ewes had no LH pulses during the 4-hour sampling period. Note that for illustrative purposes only, the frequency data for breeding season ewes was converted from pulses/5 hours to pulses/4 hours by multiplying the total number of pulses/5 hours by 80% for each ewe.