J. Anim Sci.
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J. Anim Sci. 1971. 32:80-106.
© 1971 American Society of Animal Science
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Female Sex Steroid Changes during the Reproductive Cycle1

R. E. Erb, R. D. Randel and C. J. Callahan

Purdue University, Lafayette, Indiana 47907

Abstract

DURING the VIII Biennial Symposium on Animal Reproduction, detailed reviews of mechanisms controlling luteal function were summarized (Melampy and Anderson, 1968; Moor, 1968; Hawk, 1968; Greenwald and Rothchild, 1968; Denamur, 1968; Armstrong, 1968). Relationships between the hypothalamus, pituitary, ovary and uterus were emphasized and the importance of other neural involvement recognized. Detailed reviews on neuroendocrinology have been published (Nalbandov, 1963; Lamming and Amoroso, 1967; Everett, 1969) and Amoroso (1968) has reviewed the contemporary research which established the general nature of endocrine mechanisms controlling the reproductive cycle.

Fundamental biochemical and physical techniques have been utilized to develop methods for isolation, identification and measurement of steroids in organs and tissues (Carstensen, 1967; Gray and Bacharach, 1967). A recent bibliography with abstracts on steroid conjugates has been compiled by Bernstein et al. (1966).

Generally estrogens and progestins from the ovary, gonadotropins from the anterior pituitary, factors associated with the hypothalamus and presence of the uterus are involved in control of ovarian cycles of the nonpregnant mammal in those species studied in detail.

Footnotes

1 Journal Paper No. 3819, Purdue University Agricultural Experiment Station. A contribution from the Departments of Animal Sciences and Veterinary Clinics, and Western Regional Research Project W-95.






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Copyright © 1971 by the American Society of Animal Science.