Small Ruminant Nematodes Flashcards

Question	Answer		Article
With which clinical disease of sheep are Teladorsagia (Ostertagia) circumcincta associated?	Parasitic gastroenteritis		Link to Article
What time of year may sheep be affected with Type 1 Ostertagiosis?	July - September		Link to Article
What are the clinical signs of Trichostrongylosis?	Dark, foul-smelling diarrhoea ("black scour") Weight loss		Link to Article
At what age does Nematodirus battus most commonly affect sheep?	6-10week old lambs, at the beginning of their first grazing season (April - June)		Link to Article
Describe the appearance of Nematodirus battus eggs	Brownish in colour, with straight sides Much larger than strongyle eggs		Link to Article
What are the signs associated with acute Haemonchosis?	Oedema, loss of condition, lethargy, death Anaemia, hypoalbuminaemia		Link to Article
Why does the relative number of worms of each species change during the grazing season?	Ability of L3 to overwinter Fecundity between worm species Rate of development from egg to L3 stage Special requirements of Nematodirus		Link to Article
How are sheep lungworms diagnosed?	Grazing history Clinical signs Faecal examination		Link to Article
Which sheep nematodes are goats particularly susceptible to?	Ostertagia Haemonchus Nematodirus		Link to Article