Worm IDs

Our Larval Differentiation test is known as a Worm ID. As eggs of the significant worm species appear very similar during worm egg counts, a larval culture will be required to identify individual species. Determining the species present in your worm egg count can assist you in choosing the best drench. We offer this test as an add-on option with all monitoring submissions, and as a compulsory part of Drench Resistance tests.

For small and large ruminants the significant worm species our worm egg counts are able to detect include:

  • barbers pole worm (Haemonchus contortus) or in cattle H. placei

  • small brown stomach worm (Teladorsagia circumcincta) or in cattle Ostertagia ostertagi

  • black scour worm (Trichostrongylus spp.)

  • large-mouthed bowel worm (Chabertia ovina)

  • nodule worm and large bowel worm (Oesophagostomum spp.)

  • small intestinal worm (Cooperia spp.)

  • thin-necked intestinal worm (Nematodirus spp.)- observed in our WECs

  • tapeworm (Moniezia spp.) - observed in our WECs

  • coccidia (Eimeria spp.) - observed in our WECs

This service was previously only conducted in conjunction with Dawbuts WEC Tests, but now can be conducted on their own. It is useful in:

  • monitoring of worm types in stock, particularly mobs that haven’t been tested before 

  • identification of seasonal threats

  • assisting with drench selection (i.e. if barbers pole worm dominant, option to use closantel or naphthalophos)

  • confirmation of the worm types surviving a drench.