Serum prolactin concentrations in the captive female African elephant (Loxodonta africana): Potential effects of season and steroid hormone interactions

Ursula S. Bechert, Lloyd Swanson, Samuel K. Wasser, David Hess, Fredrick Stormshak

    Research output: Contribution to journalArticle

    27 Citations (Scopus)

    Abstract

    Research was conducted to determine whether seasonal changes in prolactin secretion occur in nonpregnant female African elephants and to examine potential functional interrelationships between secretion of prolactin, cortisol, and progesterone. Weekly blood samples were taken for 18 months from four female African elephants and the sera were analyzed by RIA for progesterone, cortisol, and prolactin concentrations. There was no significant effect of season on serum concentrations of prolactin. Estrous cycles averaged 14 weeks in length and were composed of a 9-week luteal phase and a 5-week follicular phase (based on progesterone concentrations consistently >200 and

    Original languageEnglish (US)
    Pages (from-to)269-278
    Number of pages10
    JournalGeneral and Comparative Endocrinology
    Volume114
    Issue number2
    DOIs
    StatePublished - 1999

    Fingerprint

    Loxodonta africana
    steroid hormones
    prolactin
    blood serum
    Prolactin
    Steroids
    Hormones
    Progesterone
    progesterone
    Serum
    cortisol
    Hydrocortisone
    secretion
    Follicular Phase
    Estrous Cycle
    Luteal Phase
    corpus luteum
    estrous cycle
    blood
    Research

    Keywords

    • Cortisol
    • Elephants
    • Progesterone
    • Prolactin
    • Reproduction

    ASJC Scopus subject areas

    • Endocrinology

    Cite this

    Serum prolactin concentrations in the captive female African elephant (Loxodonta africana) : Potential effects of season and steroid hormone interactions. / Bechert, Ursula S.; Swanson, Lloyd; Wasser, Samuel K.; Hess, David; Stormshak, Fredrick.

    In: General and Comparative Endocrinology, Vol. 114, No. 2, 1999, p. 269-278.

    Research output: Contribution to journalArticle

    Bechert, Ursula S. ; Swanson, Lloyd ; Wasser, Samuel K. ; Hess, David ; Stormshak, Fredrick. / Serum prolactin concentrations in the captive female African elephant (Loxodonta africana) : Potential effects of season and steroid hormone interactions. In: General and Comparative Endocrinology. 1999 ; Vol. 114, No. 2. pp. 269-278.
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