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Nematode-Trapping Fungi in Biological Control of Dictyocaulus viviparus

Biologisk kontrol af Dictyocaulus viviparns ved hjælp af rovsvampe

Acta Veterinaria Scandinavica volume 38, pages 175–179 (1997)Cite this article

Abstract

Larvae of the cattle lungworm Dictyocaulus viviparus were cultured in experimental units of 200 g cattle faeces placed in semi-transparent trays in the laboratory. In each of 4 experimental series using this experimental unit, chlamydospores (chl) of the nematode-trapping fungus Duddingtonia flagrans were admixed to half of the faecal cultures in a concentration of 50.000 chl/g. In all 4 series there was a significant reduction in the development and subsequent release of infective lungworm larvae from faecal cultures containing chlamydospores. The average reduction in larval release, caused by fungal spores, was 86%.

Sammendrag

Larver af kvregets lungeorm, Dictyocaulus vivi-parus, blev dyrket i enheder af 200 g kvæggødning placeret i semi-transparente kasser i laboratoriet. I hver af 4 eksperimentelle serier, hvor ovennævnte opstilling blev anvendt, blev chlamydosporer (chi) af den nematode-fangende svamp Duddingtonia flagrans tilblandet halvdelen af opstillingeme i en koncentration på 50.000 chl/g. I alle 4 serier var der en signifikant reduktion i spredningen af infektive lungeormlarver fra kulturer tilblandet chlamydosporer. Den gennemsnitlige reduktion i spredningen, forårsaget af chlamydosporer, var 86%.

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Acknowledgments

The authors highly appreciate the technical assistance of Leif Eiersted, and the financial support of Danish National Research Foundation and Chr. Hansen’s Bio Systems.

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Authors and Affiliations

  1. Danish Veterinary Laboratory, Biilowsvej 27, DK-1790, Copenhagen V, Denmark

    Sv. Aa. Henriksen

  2. Department of Veterinary Microbiology, Danish Centre for Experimental Parasitology, Denmark

    M. Larsen & P. Nansen

  3. Section of Zoology, The Royal Veterinary and Agricultural University, Frederiksberg, Denmark

    J. Grønvold

  4. Section of Microbiology, Department of Ecology and Molecular Biology, The Royal Veterinary and Agricultural University, Frederiksberg, Denmark

    J. Wolstrup

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  1. Sv. Aa. Henriksen
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  2. M. Larsen
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  3. J. Grønvold
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  4. P. Nansen
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  5. J. Wolstrup
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Correspondence to Sv. Aa. Henriksen.

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Henriksen, S.A., Larsen, M., Grønvold, J. et al. Nematode-Trapping Fungi in Biological Control of Dictyocaulus viviparus. Acta Vet Scand 38, 175–179 (1997). https://doi.org/10.1186/BF03548497

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Acta Veterinaria Scandinavica

ISSN: 1751-0147