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Steroid hormones concentration of the postovulatory ovarian follicles of the goose

Published online by Cambridge University Press:  20 November 2017

D. Wojtysiak  and
P. Paściak
D. Wojtysiak
Affiliation:
Department of Animal Anatomy, University of Agriculture, 30-059 Kraków, Poland Email [email protected].
P. Paściak
Affiliation:
Ecopig Ltd., 42-510 Wojkowice Kościelne 28, Poland
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Extract

The functional ovary of the mature goose generally contains numerous small white and yellowish follicles, five to nine yellow preovulatory follicles arranged in a follicular hierarchy and several postovulatory follicles. Unlike the mammals, in the birds no corpus luteum is formed following ovulation, but the postovulatory follicles (POF) (Johnson, 1990), which is followed by regressions and resorption via apoptosis. It has been reported that POF are physiologically active during several days and have steroidogenic capacity. Earlier studies in hen showed that 3β-HSD activity was present in the granulosa layer of the postovulatory follicles (Nitta et al., 1993).

Despite strong interest in bird reproductive system there is only little information on the goose ovarian system. Relatively few data are on the steroid concentration in the theca and granulosa layer of the postovulatory follicles in the hen (Dick et al., 1978) but in the goose have not jet been determined. Therefore the aim of the study was to determine concentration of progesterone, estradiol and androgens in different sizes of the postovulatory follicles.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2004 , 2004 , pp. 183
Copyright
Copyright © The British Society of Animal Science 2004

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References

Dick, H. R., Culbert, J., Wells, J. W., Gilbert, A. B., Davidson, M. F. 1978. Steroid hormones in the postovulatory follicle of the domestic fowl (Gallus domesticus) . Journal of Reprouction and Fertility, 53: 103.Google Scholar
Johnson, A. L. 1990. Steroidogenesis and actions of steroids in the hen ovary. Critical Reviews in Poulry Biology, 2: 319–346.Google Scholar
Nitta, H., Mason, J. I., Bahr, J. M. 1993. Localization of 3β-hydroxysteroid dehydrogenase in the chicken ovarian follicle shifts from the theca layer to granulosa layer with follicular maturation. Biology of Reproduction, 48: 110–116.Google Scholar