Author
Listed:
- J. Chyb
(Department of Ichthyobiology and Fisheries, University of Agriculture in Krakow, Krakow, Poland)
- M. Socha
(Department of Ichthyobiology and Fisheries, University of Agriculture in Krakow, Krakow, Poland)
- P. Szczerbik
(Department of Ichthyobiology and Fisheries, University of Agriculture in Krakow, Krakow, Poland)
- M. Sokolowska-Mikolajczyk
(Department of Ichthyobiology and Fisheries, University of Agriculture in Krakow, Krakow, Poland)
- T. Mikolajczyk
(Department of Ichthyobiology and Fisheries, University of Agriculture in Krakow, Krakow, Poland)
- P. Epler
(Department of Ichthyobiology and Fisheries, University of Agriculture in Krakow, Krakow, Poland)
Abstract
Effects of salmon gonadotropin releasing hormone analogue (sGnRH-A) and antidopaminergic drug, pimozide, on the synthesis of prolactin mRNA in vivo in female Prussian carp (Carassius gibelio Bloch) during two different stages of the reproductive cycle were evaluated. The results showed that the lowest dose of sGnRH-A (5 μg/kg body weight) significantly stimulated the mRNA synthesis in fish during the recrudescence as well as during the preovulatory period, higher doses of this compound having no significant effect on prolactin mRNA synthesis. The blocker of dopamine receptors, pimozide, also potentiated prolactin mRNA synthesis - in recrudescent females it increased mRNA levels at the dose of 1 mg/kg, while in the preovulatory period all of the used pimozide doses (1, 5, and 10 mg/kg) were responsible for the increase of prolactin mRNA levels. Taken together, the above results suggest that gonadotropin releasing hormone (GnRH) is the factor responsible for the stimulation of prolactin synthesis, while dopamine has an inhibitory influence on the prolactin production.
Suggested Citation
J. Chyb & M. Socha & P. Szczerbik & M. Sokolowska-Mikolajczyk & T. Mikolajczyk & P. Epler, 2013.
"The influence of sGnRH-A and antidopaminergic drug - pimozide - on prolactin mRNA synthesis in female Prussian carp (Carassius gibelio Bloch) in vivo,"
Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 58(1), pages 31-36.
Handle:
RePEc:caa:jnlcjs:v:58:y:2013:i:1:id:6523-cjas
DOI: 10.17221/6523-CJAS
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