Species (7)

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  Metazoa Nematoda Strongylida Trichostrongylidae Ostertagia

  Ostertagia ostertagi

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  Metazoa Nematoda Strongylida Trichostrongylidae Trichostrongylus

  Trichostrongylus colubriformis Giles 1892

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  Metazoa Nematoda Strongylida Trichostrongylidae Ostertagia

  Ostertagia circumcincta

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  Metazoa Nematoda Strongylida Trichostrongylidae Trichostrongylus

  Trichostrongylus axei Cobbold 1897

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  Metazoa Nemathelminthes Trichostrongylidae Trichostrongylus

  Trichostrongylus orientalis Jimbo 1914

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  Metazoa Nematoda Strongylida Trichostrongylidae Hyostrongylus

  Hyostrongylus rubidus Hassal & Stiles 1892

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  Metazoa Nematoda Dorylaimida Trichostrongylidae Haemonchus

  Haemonchus contortus

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