Fecal Androgen, A Progesterone Metabolite in the Bovine.

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Abstract
Sexually mature and pregnant cows excrete in their feces appreciable amounts of androgen, whereas males and immature females do not. To determine whether progesterone might be the precursor of the androgen, 7 male and female bovines were given subcutaneously 1 g progesterone daily for 3 or more days. Following these injections a statistically significant increase in fecal androgen was seen in 6 animals while a non-significant increase was seen in the pregnant cow. These data are believed to indicate that at least a part of the fecal androgen normally found in the sexually active bovine may be derived from progesterone.