Estradiol and Progesterone Profiles Indicate a Lack of Endocrine Recognition of Pregnancy in the Opossum
- 19 June 1981
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 212 (4501) , 1400-1402
- https://doi.org/10.1126/science.7233228
Abstract
Concentrations of estradiol and progesterone in blood collected during the 12.5-day gestation period of the Virginia opossum were not significantly different from those during equivalent days of the estrous cycle. Progesterone was correlated with an index of corpora luteral mass. Ratio of estradiol to progesterone were highest 3 to 4 days before estrus and on the day of parturition.This publication has 18 references indexed in Scilit:
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