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Endocrinology, Vol 97, 485-487, Copyright © 1975 by Endocrine Society

ARTICLES

Serum progesterone and estrogens in elephants

ED Plotka, US Seal, EE Schobert and GC Schmoller

Serum progesterone and estrogens were measured by radioimmunoassay in the serum of immature, mature, and pregnant African and Asian elephants. Progesterone was elevated from 26 to 215 pg/ml in nonpregnant animals and up to 480 pg/ml in late pregnancy animals. No relationship to reproductive state was evident for the low levels of estrogens which ranged from 9 to 37 pg/ml.


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G. Dryden and J. Anderson
Ovarian hormone: lack of effect on reproductive structures of female Asian musk shrews
Science, August 19, 1977; 197(4305): 782 - 784.
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Endocrinology Endocrine Reviews J. Clin. End. & Metab.
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Copyright © 1975 by The Endocrine Society