Hormonal treatment with Ovopel increases sperm production in lake minnow, Eupallasella percnurus (Pallas, 1814)

  • Rafał Kamiński
  • Sylwia Judycka
  • Justyna Sikorska
  • Jacek Wolnicki
Keywords: CASA, hormonal stimulation, lake minnow, motility, quality, semen


The aim of the study was to determine the suitability of Ovopel, which contains an mGnRH analog and metoclopramide (a dopamine inhibitor), for the stimulation of spermiation in the cyprinid fish lake minnow, Eupallasella percnurus (Pallas), which is endangered with extinction in Poland. The hormonal treatment effected an approximate twofold increase in sperm volume with a simultaneous decrease in sperm concentration and negligible differences in motility and straight-line velocity.