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  • Title: [Effect of 17 alpha hydroxy-20 beta dihydroprogesterone and progesterone on maturation and ovulation in vivo and on the plasma level of gonadotropic hormone t-GtH in rainbow trout Salmo gairdneri].
    Author: Jalabert B, Bry C, Breton B, Campbell C.
    Journal: C R Acad Hebd Seances Acad Sci D; 1976 Oct 27; 283(10):1205-8. PubMed ID: 827357.
    Abstract:
    Ovulation occurred 5 to 9 days after injection of 2 mg/kg 17 alpha-hydroxy-20 beta dihydroprogesterone (17 alpha-20 beta Pg) in rainbow trout with oocytes in which the germinal vesicle was subperipheral. Whereas oocyte maturation was initiated by 17 alpha-20 beta Pg without an immediate increase in the concentration of t-GtH, in controls an increased level was found to coincide with initiation of the process and the concentration of t-GtH was higher at all stages. Progesterone treatment was less effective.
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