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Biol Bull 142: 243-250. (April 1972)
© 1972 Marine Biological Laboratory
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ENDOCRINE INFLUENCES ON SEMINAL VESICLES IN THE ESTUARINE GOBIID FISH, GILLICHTHYS MIRABILIS

VICTOR L. DE VLAMING 1 and BANGALORE I. SUNDARARAJ 2

1 Department of Zoology, University of California, Berkeley, California 94720
2 Department of Zoology, University of Delhi, Delhi 7, India

1. The effects of castration or hypophysectomy on the seminal vesicles of the gobiid fish, Gillichthys mirabilis were examined. In addition, the influence of ovine prolactin and testosterone propionate treatments was determined in the 7-day hypophysectomized specimens.

2. Both castration and hypophysectomy caused regression of the seminal vesicles

3. A low dose of testosterone propionate (25 µg/day) did not inhibit regression of the seminal vesicles in the hypophysectomized fish.

4. A high dose of testosterone propionate (150 µg/day) or prolactin treatment prevented regression of the seminal vesicles in hypophysectomized fish; neither treatment, however, maintained the level of activity observed in sham-operated fish.

5. A combination of testosterone propionate and prolactin maintained seminal vesicle activity in the hypophysectomized fish at a level equal to that in sham-operated controls.






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Copyright © 1972 by the Marine Biological Laboratory.