5 Written questions
4 Matching questions
- strongyloides westeri
- parascaris equorum
- ascaris suum
- a treat pigs with ivome, dectomax or safeguard.
- b adults are very small 2-9 mm long. Ova are thin shelled, oval and larvated.
- c ingest larvated ova. Ova hatches and migrates to the liver, heart and lungs. Coughed up then swallowed as mature adult.
- 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
- large roundworm of horses.
- 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.
- 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.
- 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.
- 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
equine lice → treat with topical powders such as dri kill and louse kill.
chorioptic mange → adults are tiny with 8 long legs and short unjointed stalks for trumpets at ends of some legs.
parascaris equorum → light 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.
cyathostomes → small strongyles.
gastrophilus species → are a potentially zoonotic parasite if humans ingest infested eggs.