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Use of three forms of decapsulated Artemia cysts as food for juvenile noble crayfish (Astacus astacus)

Author

Listed:
  • A. Kouba

    (South Bohemia Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, Czech Republic)

  • J. Hamáčková

    (South Bohemia Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, Czech Republic)

  • M. Buřič

    (South Bohemia Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, Czech Republic)

  • T. Policar

    (South Bohemia Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, Czech Republic)

  • P. Kozák

    (South Bohemia Research Center of Aquaculture and Biodiversity of Hydrocenoses, Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budějovice, Vodňany, Czech Republic)

Abstract

Summerling (six-month old) noble crayfish fed two forms of freshly decapsulated (FD) Artemia cysts more than tripled their weight during a 75-day experiment under controlled conditions. Final survival rates were at the level of 90%. Feeding commercially available industrially decapsulated cysts resulted in both poor growth and reduced survival (22.2%). Therefore FD Artemia cysts may be an effective diet for crayfish culture, but dehydrated industrially decapsulated (DID) cysts should be used with caution to avoid products of low quality. That should be considered especially in slow feeders such as crayfish because of leaching of nutrients from DID cysts. Costs of the processing of freshly decapsulated cysts are discussed.

Suggested Citation

  • A. Kouba & J. Hamáčková & M. Buřič & T. Policar & P. Kozák, 2011. "Use of three forms of decapsulated Artemia cysts as food for juvenile noble crayfish (Astacus astacus)," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 56(3), pages 114-118.
    • Handle: RePEc:caa:jnlcjs:v:56:y:2011:i:3:id:1301-cjas
    DOI: 10.17221/1301-CJAS
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    References listed on IDEAS

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    1. P. Kozák & M. Buřič & J. Kanta & A. Kouba & P. Hamr & T. Policar, 2009. "The effect of water temperature on the number of moults and growth of juvenile signal crayfish Pacifastacus leniusculus Dana," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 54(6), pages 286-292.
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