Abstract
Summary
Ovarian Δ5-3β-hydroxysteroid dehydrogenase activity and protein content were determined in Long-Evans rats 1-24 mo of age. Activity of the enzyme per milligram of protein was maximal between 2 and 4 mo of age and declined thereafter. Ovarian enzyme activity of the 24-mo old rat was significantly less than that of the prepubertal animal. Total ovarian enzyme activity was maximal in 4-mo old rats. A decline in ovarian protein was noted between 4 and 24 mo of age.
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