Serum LH suppression by estradiol but not by testosterone or progesterone in wethers.

The objective of this experiment was to determine the effect of steroids, previously shown to depress serum luteinizing hormone (LH) in rams, upon serum LH in orchiectomized sheep. Accordingly serum LH concentration was monitored during the intravenous injection of testosterone, progesterone or estradiol. Neither testosterone at rates of 12.5, 125 or 1,250… CONTINUE READING