Parasitology Research

, Volume 75, Issue 1, pp 57–63 | Cite as

Incubation in rats of a nematodal larva from cod to establish its specific identity:Contracaecum osculatum, (Rudolphi)

  • H. -P. Fagerholm
Original Investigations


Infective, third-stage larvae of the genusContracaecum from fish were cultured in vitro and fed to laboratory animals in order to obtain later developmental stages to permit their specific identification. The in vitro incubation was unsuccessful. In orally infected laboratory rats and hamsters, fourth-stage larvae were obtained from the stomach at 2–5 days postinfection (p.i.), but no adult worms developed. Larvae introduced surgically into the body cavity of laboratory rats yielded some adult worms from day 42 onwards. Adult males were identified asContracaecum osculatum.


Developmental Stage Laboratory Animal Adult Male Specific Identification Adult Worm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • H. -P. Fagerholm
    • 1
  1. 1.Institute of ParasitologyÅbo AkademiÅboFinland

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