ETN CPD - worming Answers January 2017
1. What are the most common worms in horses in the UK?
A) Large redworm
C) Small redworm
2. Why don’t encysted small redworm show up in a faecal worm egg count?
A) Because the eggs remain in the gut
B) Because the eggs die
C) Because the small redworm are dormant during this stage
3. When do encysted small redworm usually ‘wake up’?
A) In the late autumn/early winter
B) In summer
C) In the spring
4. When should horses be treated for encysted small redworm?
A) Late autumn/early winter
B) Late winter/early spring
C) Late summer/early autumn
5. Which of the following active ingredients are licensed to treat for encysted small redworm?
C) 5 day Fenbendazole
6. Which of the following has shown widespread evidence of resistance in small redworm?
D) Fenbendazole, including the 5 day dose
7. What is resistance?
A) When a horse is no longer susceptible to the drugs used
B) When the parasite population is no longer susceptible to a drug it was previously sensitive to
C) When the worms in their larval stages are unaffected by the drugs used
8. Which of the following could cause resistance to occur:
C) Frequent dosing
D) Infrequent dosing
9. According to the results of the latest National Equine Health Survey how many horse owners are using the wrong wormer to treat for encysted small redworm?
A) Around one third
B) Around half
C) Around a quarter
10. According to the results of the latest National Equine Health Survey how many people treated for encysted small redworm using a product which is licensed but for which resistance has been widely documented?
*Please confirm you have not completed / will not complete the CPD postal form in ETN magazine. Answers to CPD features can only be submitted once