Published in Scientific Papers. Series D. Animal Science, Vol. LX
Written by Mioara COSTACHE, Cecilia BUCUR, Mihail COSTACHE, Daniela RADU, Camen Geogeta NICOLAE
Diversification of production in fish culture by introducing valuable species for which there is demand and tradition for consumption, is one of the main directions of development of aquaculture. Perch (Perca fluviatilis L.), a valuable autochthonous species, is recognized for the quality of meat but mainly for the satisfaction offered in sport fishing. A crucial step for the introduction and expansion of perch in aquaculture, is to obtain biological material for stocking through artificial spawning. The paper presents results of experiments for artificial spawning of perch performed between March 20 and April 1, 2015. Were used a total of 120 broodstock collection in Arcesti and Ionesti reservoirs on the river Olt in the fall of 2014. For maturation and ovulation induction was used: carp pituitary extract - CPE, human chorionic gonadotropin - Chorulon HCG, GnRH or analogues, sometimes combined with dopamine antagonists - Ovopel. Technological parameters obtained from artificial spawning were within the following ranges: the percentage of maturation of females 34 -73%; embryo rate was 64 -85%, hatching rate 23 -65%. The best results were obtained when using HCG Chorulon as a stimulating agent for maturation and ovulation.
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