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5 Written questions

4 Matching questions

  1. strongyloides westeri
  2. parascaris equorum
  3. anaplocephala
  4. ascaris suum
  1. a treat pigs with ivome, dectomax or safeguard.
  2. b adults are very small 2-9 mm long. Ova are thin shelled, oval and larvated.
  3. c ingest larvated ova. Ova hatches and migrates to the liver, heart and lungs. Coughed up then swallowed as mature adult.
  4. d generally considered non pathogenic. heavy infestations can rarely cause intestinal obstruction or perforation. May be involved with certain types of colic.

5 Multiple choice questions

  1. large roundworm of horses.
  2. adults live in large bowel, pass eggs in feces. Ingested by horse and penetrate teh gut wall. Migrate through abdomen. Enter the mesenteric artery and cause verminous arteritis.
  3. adult flies are transversely striped and look similar to bees, no mouth parts. Larvae 1-2 cmc in length, yellowish or red-brown with transverse segmentation and short bristles.
  4. travel thru the bloodstream to skeletal muscle where they encyst and are ingested by another host and release into their intestines to mature to adults.
  5. Can interfere with blood supply to gut and cause infarction and death. Likely involved with some types of colic in horses.

5 True/False questions

  1. equine licetreat with topical powders such as dri kill and louse kill.


  2. chorioptic mangeadults are tiny with 8 long legs and short unjointed stalks for trumpets at ends of some legs.


  3. parascaris equorumlight infection shows no clinical signs. Heavier infection can cause intestinal obstruction. Can also see colic, pot belly, diarrhea, constipation, unthriftness, cough, weight loss, flatulence and rarely death.


  4. cyathostomessmall strongyles.


  5. gastrophilus speciesare a potentially zoonotic parasite if humans ingest infested eggs.