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Table 1 Design of T. circumcincta infection experiments

From: Local cytokine transcription in naïve and previously infected sheep and lambs following challenge with Teladorsagia circumcincta

Experiment Age Breed Group Trickle infectiona Kill day following challengeb
0 2 5 10 21
2 Yearling Dorset × Suffolk Naive - - - 6c 6c 6c
Previously Infected + - - 6c 6c -
4 Yearling Scottish Blackface × Bluefaced Leicester Naive - 6 6 - - -
Previously Infected + 6 6 - - -
6 5 months Dorset × Suffolk Naive - 4 - 6c 6c 6c
Previously Infected + 4 - 6c 6c 6c
  1. a2000 T. circumcincta L3 administered three times per week for 8 weeks.
  2. bQuoted figure is the number of animals in the group killed on the corresponding day following challenge.
  3. cCommon gastric lymph duct cannulated 4–7 days prior to challenge infection (day 0).