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Neuraminsäure-Gehalt in Fischeiern verschiedener Entwicklungsstadien

Neuraminic acid content of fish eggs during early ontogenesis

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Summary

The content of neuraminic acid (NA) of different developmental stages of trout eggs was determined.

  1. 1.

    The total NA increases from about 13 μg NA per egg (6–8 weeks before spawning) to 50 μg directly before spawning until hatching.

  2. 2.

    In freshly hatched fish larvae the NA-content is decreased to about 40 per cent as compared with stages before hatching.

  3. 3.

    The ratio of bound to free NA decreases from values of about 13.5 (6–8 weeks before spawning) to 0.85–1.2 at the hatching-stage.

  4. 4.

    The bound NA is almost entirely bound to sialo-glycoproteins.

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Authors and Affiliations

  1. Institut für Zoologie der Universität Stuttgart-Hohenheim, D-7000, Stuttgart 70

    Hinrich Rahmann & Heinz Breer

Authors
  1. Hinrich Rahmann
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  2. Heinz Breer
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Mit dankenswerter Unterstützung durch die Deutsche Forschungsgemeinschaft (Ra 166/5)

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Rahmann, H., Breer, H. Neuraminsäure-Gehalt in Fischeiern verschiedener Entwicklungsstadien. Wilhelm Roux' Archiv 180, 253–256 (1976). https://doi.org/10.1007/BF00848773

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  • DOI: https://doi.org/10.1007/BF00848773

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