Changes in plasma levels of oestrone and oestradiol during pregnancy and parturition in white-tailed deer

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Authors:
J. D. Harder
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and
A. Woolf
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DOI:
https://doi.org/10.1530/jrf.0.0470161
Volume/Issue:
Volume 47: Issue 1
Page Range:
161–163
Article Type:
Research Article
Online Publication Date:
May 1976
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Department of Zoology, Ohio State University, Columbus, Ohio 43210, and *Rachelwood Wildlife Research Preserve, New Florence, Pennsylvania 15944, U.S.A.

Very few measurements of ovarian steroids in white-tailed deer (Odocoileus virginianus) have been published. Eleftheriou, Boehlke, Zolovick & Knowlton (1966) isolated oestrone, oestradiol-17α, oestradiol-17β, oestriol, 16-epioestriol and 16-keto-oestradiol-17β, and Harder & Peterle (1974) reported that the total progestin concentration was 13 ng/ml during the first third of pregnancy. In the present paper we describe the plasma concentrations of unconjugated oestrone and oestradiol, measured by a radioimmunoassay, in pregnant and parturient white-tailed deer.

The deer were wild animals on the Rachelwood Wildlife Preserve, a 2105-hectare, fenced area approximately 95 km east of Pittsburgh, Pennsylvania. Five or six free-ranging deer were collected each month from January to May (third to last month of gestation) by shooting and live-trapping. Collections were made during 11-23 January, 13-19 February, 21-23 March, 17-19 April and 21-22 May.

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Print ISSN:
1470-1626
Online ISSN:
1741-7899