Triploidization of European catfish, Silurus glanis L., by heat shock |
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| Authors: | O Linhart M Flaj&#;hans |
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| Institution: | Division of Biotechnology. Reproduction and Genetics of Fish. University of gers. France, and Department of Fish Genetics and Breeding, Research institute of Fish Culture and Hydrobiology. Vodňany. Czech Republic;Department of Fish Genetics and Breeding, Research Institute of Fish Culture and Hydrobiology. Vodňany. Czech Republic |
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| Abstract: | Heat shock was applied to fertilized eggs of European catfish, Silurus glanis L., for the induction of triploidy. A heat shock of 40. 5°C lasting 1 min and starting 9 min after gamete activation gave the best results with 88.93% of hatched viable fry (92.41% in control group). Yields of hatched viable triploid fry reached 63.14% or 50.60%, when expressed as percentage of the absolute number of viable fry or number of living eggs in eye-bud stage, respectively (P < 0.05). |
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