Comparison of economic effectiveness of applying different hormonal preparations for reophile cyprinid fish reproduction stimulation based on the example of asp Aspius aspius [L.] and ide Leuciscus idus [L.]

Assessment of the economic effectiveness of hormonal stimulation application in reophile cyprinid fish reproduction based on the example of asp Aspius aspius (L.) and ide Leuciscus idus (L.) was the goal of the studies presented in this paper. Three hormonal preparations: Ovopel, Ovaprim and carp pituitary were tested during this study. Economic effectiveness of application of those hormonal preparations for asp and ide reproduction stimulation considering the relative working fertility of asp and ide, effectiveness of the selected hormonal preparations and their price were assessed. The cost of hormonal injection per 1000 spawn grains and per 1000 spawn grains in eyed stage was assumed for the measure of economic effectiveness. In case of both studied species injections with Ovaprim and Ovopel were more economic than stimulation with carp pituitary. This is linked to the high application effectiveness of GnRH analogues with dopamine inhibitors found in controlled reproduction of asp and ide. The effectiveness of those hormonal preparations is confirmed by a high percentage of ovulations as well as the high survival rate of the embryos to the eyed stage. Address: Anna Hakuć-Błażowska, University of Warmia and Mazury, ul. Oczapowskiego 5, 10-957 Olsztyn, Poland, phone: +48 (089) 523 44 36, e-mail: hakuc.blazowska@uwm.edu.pl * The study was financed within the frameworks of the Project Optimization of reophile cyprinid fish stocking material production under controlled conditions; Sectoral Operational Program Fisheries and fish processing 2004–2006; (00040-61535-OR1400009/07) PORÓWNANIE OPŁACALNOŚCI STOSOWANIA RÓŻNYCH PREPARATÓW HORMONALNYCH DO SYMULACJI ROZRODU KARPIOWATYCH RYB REOFILNYCH NA PRZYKŁADZIE BOLENIA ASPIUS ASPIUS (L.) I JAZIA LEUCISCUS IDUS (L.) Anna Hakuć-Błażowska, Krzysztof Kupren, Konrad Turkowski, Katarzyna Targońska, Marta Jamróz, Sławomir Krejszeff, Maciej Kwiatkowski, Daniel Żarski, Dariusz Kucharczyk Katedra Rybactwa Jeziorowego i Rzecznego Uniwersytet Warmińsko-Mazurski w Olsztynie Słowa kluczowe: boleń, jaź, stymulacja hormonalna, efektywność ekonomiczna.