Applied parasitology (Yr 4) Flashcards
when are horses at risk of colic relating to parasites?
if they are not on a worming programme
just after anthelmintic administration
why does post-worming colic occur?
inflammation of GIT subsequent to death of large numbers of parasites
what can be done to minimise the chances of developing post-worming colic?
give steroids as concurrent therapy with anthelmintics to reduce the reaction to high worm burden death
what are the main clinical signs of cyanthostominosis?
weight loss
hypoalbuminaemia
diarrhoea
what can high burdens of cyanthostomins cause, in relation to surgery?
intussusceptions (caecocolic)
why do cyanthostomins cause intussusceptions?
they effect the motility of the GI tract
what types of colics are associated with tapeworms?
spasmodic
ileal impactions
caecal intussusceptions
what is Oxyuris equi?
pinworm
what is Gasterophilus intestinalis?
botfly
why is control of parasite so important?
horse tolerate worm burdens well, hence only show signs when clinical disease is imminent
what wormers are available for horses?
fenbendazole
pyrantel
ivermectin
moxidectin
how can we reduce the need for anthelmintic treatment in horses?
appropriate stocking density
pasture management (faecal collection twice weekly, rest/rotate pasture, dung heaps away from pasture)
what age are horses susceptible to ascarids?
foals (4/5 months old)
what parasites are yearlings at risk of?
strongyles
tapeworms
what is the top parasite for foals?
Parascaris equorum
