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Table 3 Faecal egg count and adult parasite burden at post-mortem for six Fasciola hepatica clonal isolates. Two sheep were infected for each clonal isolate, patency of infection was confirmed by faecal egg count (FEC), expressed as eggs per gram (epg). One sheep from each pair was treated with 10mg/kg triclabendazole, the other sheep was left untreated. After 10 days all sheep were euthanised and adult liver fluke were enumerated post-mortem

From: Clonal amplification of Fasciola hepatica in Galba truncatula: within and between isolate variation of triclabendazole-susceptible and -resistant clones

Clonal isolate

FEC (epg) on day of treatment

Number of adult liver flukes present post-mortem

TCBZ+

TCBZ-

TCBZ+

TCBZ-

FhLivR1

381

137

165

70

FhLivR2

324

50

48

31

FhLivR3a

186

–

35

–

FhLivS1

6

2

0

15

FhLivS2

146

57

0

127

FhLivS3

89

73

0

113

  1. aFhLivR3, one sheep (TCBZ-) had to be euthanized for non-fluke related illness during the course of the experiment
  2. Abbreviations: epg eggs per gram, FEC faecal egg count; TCBZ+, treatment with 10 mg/kg triclabendazole; TCBZ-, no treatment with 10 mg/kg triclabendazole