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Wintering of juvenile (Cyprinus carpio L.) carp in cooling water
Trzebiatowski, R.; Lubieniecka-Kryszko, I.; Filipiak, J. (1989). Wintering of juvenile (Cyprinus carpio L.) carp in cooling water, in: De Pauw, N. et al. (Ed.) Aquaculture: a biotechnology in progress: volume 1. pp. 269-276
In: De Pauw, N. et al. (Ed.) (1989). Aquaculture: a biotechnology in progress: volume 1. European Aquaculture Society: Bredene, Belgium. ISBN 90-71625-03-6. 1-592 pp., more

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Document type: Conference paper


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  • Trzebiatowski, R.
  • Lubieniecka-Kryszko, I.
  • Filipiak, J.

    The condition of post-wintering carp (Cyprinus carpio L.) fingerlings is known to considerably affect the results of further culture. Quality and quantity of feed supplied to the 1-year-old wintering carp are among the most important factors. The present report deals mainly with feed quantity effects. The studies were carried out during the winters 1984/85 and 1985/86 at the Academy of the Agriculture Field Research Station located in the vicinity of the "Dolna Odra" power station at Nowe Czarnowo. The aim was to determine changes in basic culture indices and chemical body composition is maintained throughout the winter. The cooling-water quality of the "Dolna Odra" power station was shown to create conditions favorable for carp fingerling overwintering, which is confirmed by the 100% survival. Culture indices and basic fish-body components changed as a result of water temperature variations and various feed doses used. A decrease in the percentage of fat and dry weight was found in those fish fed doses less than 1.5% body weight, the protein and ash levels remaining more or less stable. At a higher feed dose (1.5%), the chemical composition of the fish body was more stable. Regardless of the feed dose, the fed fish showed no clear-cut variability in weight, but the growth of the carp fingerling slowed down at water temperatures below 10°C. Marked losses in body weight and a changed chemical composition were revealed in the unfed carp.

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