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5 Written questions

5 Matching questions

  1. chorioptic mange
  2. oesophagostomum
  3. ascaris suum
  4. equine lice
  5. EPM
  1. a causes CNS signs such as ataxia, weakness, stumbling, etc. Has a complex poorly understood life cycle.
  2. b found in the large intestine in pigs.
  3. c cause irritation which leads to rubbing and scratching and hair loss. Sucking lice can lead to anemia generally in young foals.
  4. d adults are tiny with 8 long legs and short unjointed stalks for trumpets at ends of some legs.
  5. e are a potentially zoonotic parasite if humans ingest infested eggs.

5 Multiple choice questions

  1. ingest larvated ova. Ova hatches and migrates to the liver, heart and lungs. Coughed up then swallowed as mature adult.
  2. adults are very small 2-9 mm long. Ova are thin shelled, oval and larvated.
  3. bloodworms.
  4. generally considered non pathogenic. heavy infestations can rarely cause intestinal obstruction or perforation. May be involved with certain types of colic.
  5. how often should horses in highly concentrated areas be dewormed?

5 True/False questions

  1. botsadult females can be annoying. Larva in stomach can rarely cause ulcerations. Most time no clinical signs are present. Often infection is determined on post mortem exams.


  2. botscauses CNS signs such as ataxia, weakness, stumbling, etc. Has a complex poorly understood life cycle.


  3. ascaris suumadults are very large. Males 15-28 cm and females 50 cm long. Eggs have a spherical rough shell, dark amber to brown. Ova survives in evironment for years.


  4. chorioptic mangeseen mostly in heavy horses with heavily feathered legs. Spend their entire life cycle on the horse. Transmission is by direct contact and sometimes by grooming objects.


  5. oxyuris equican interfere with the growth and development of pigs. Can migrate to the liver and cause "milk spots" which are not likely significant. If they migrate to the lungs they can cause respiratory disease.


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