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The Survival of Nematodes and Cestodes of Sheep in the Pasture During the Winter in Eastern Norway

Overvintring av sauens nematoder og cestoder i beiter i Øst-Norge

Acta Veterinaria Scandinavica volume 12, pages 504–512 (1971)Cite this article

Summary

Using 21 worm-free lambs in paddocks on old sheep pastures on 4 farms near Oslo, it was found that Nematodirus spp., Ostertagia spp. and Moniezia spp. were the only helminths which could survive the winter in the pasture in great numbers. A few Teladorsagia davtiani, Chabertia ovina, Trichuris ovis, Cooperia onchophora and Skrjabinema ovis survived the winter. Trichostrongylus axei, T. vitrinus and Oesophagostomum venulosnm showed a negligible ability to survive the winter in the pasture. The following species were never found to survive: Haemonchus contortus, Trichostrongylus colubriformis, Bunostomum trigonocephalum, Cooperia curticei and Strongyloides papillosus.

Sammendrag

Ved å bruke parasittfrie lam som forsøksdyr i isolerte kveer på gammelt, sterkt infiserte sauebeiter ble det funnet at Nematodirus spp., Ostertagia spp. og Moniezia spp. var de eneste nematoder og cestoder som overlevet vinteren i beitet i større mengder. Noen få eksemplarer av Teladorsagia davtiani, Chabertia ovina, Trichuris ovis, Gooperia onchophora og Skrjabinema ovis overvintret i beitet. Ubetydelig overvintring ble funnet av Trichostrongylus axei, T. vitrinus og Oesophagostomum venulosum. Følgende arter overlevet ikke i beitet: Haemonchus contortus, Trichostrongylus colubriformis, Bunostomum trigonocephalum, Gooperia curticei og Strongyloides papillosus.

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  1. Department of Medicine, Veterinary College of Norway, Oslo, Norway

    Oddvar Helle

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  1. Oddvar Helle
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Helle, O. The Survival of Nematodes and Cestodes of Sheep in the Pasture During the Winter in Eastern Norway. Acta Vet Scand 12, 504–512 (1971). https://doi.org/10.1186/BF03547719

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Acta Veterinaria Scandinavica

ISSN: 1751-0147