Influence of the source of spawners’ origin on oocyte maturity stages and suitability for artificial reproduction of wild pikeperch (Sander lucioperca) females during spawning season
Kucharczyk D. Nowosad J. Łubowski T. Ablaisanova G.M. Zeghloul T. Abdel-Latif H.M.R.
August 2022Elsevier B.V.
Animal Reproduction Science
2022#243
Pikeperch is one of the major new fish species in freshwater aquaculture. Artificial reproduction is difficult in this species, and many aspects require further study. These include synchronization of female maturation, latency time, gamete quality and spawner survival rate. For these reasons, many fish farmers must constantly replenish their spawning pikeperch stock, often with wild fish. Data on the suitability for the reproduction of wild fish obtained in several lakes during the reproduction period were collected in this study. The findings indicated that larger fish (> 1.5 kg BW) and those obtained in larger and deeper lakes (> 12.0 m mean depth vs. < 5.0 m mean depth, respectively, for deep and shallow lakes) were more valuable to fish farmers during the spawning season when they were obtained because a higher percentage of suitability for artificial reproduction and a higher embryo survival rate was observed for them. The mean embryo survival rate was high and was 84.5 ± 3.9 % on the 3rd day after fertilization and 79.7 ± 3.4 % at hatching. Among the group of the smallest females (< 1.5 kg), the highest percentage of nonsynchronous oocyte maturation occurred. This result demonstrated the successful procedure of both artificial reproduction and a successful method for selecting females for spawning.
Aquaculture , Fertilization , Oocyte maturation stages , Ovulation , Pikeperch , Wild population
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Department of Ichthyology and Aquaculture, Faculty of Animal Bioengineering, University of Warmia and Mazury in Olsztyn, Poland
ChemProf Olsztyn, Poland
Department of Veterinary Prevention and Feed Hygiene, Faculty of Veterinary Medicine, University of Warmia and Mazury in Olsztyn, Poland
Fish Farm Ławki, Poland
Kazakh National Agrarian University, Kazakhstan LLP, Fisheries Research and Production Center, Kazakhstan
National Center for Research and Development of Fisheries and Aquaculture, Algiers, Algeria
Department of Poultry and Fish Diseases, Faculty of Veterinary Medicine, Alexandria University, Egypt
Department of Ichthyology and Aquaculture
ChemProf Olsztyn
Department of Veterinary Prevention and Feed Hygiene
Fish Farm Ławki
Kazakh National Agrarian University
National Center for Research and Development of Fisheries and Aquaculture
Department of Poultry and Fish Diseases
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