5 Written questions
5 Matching questions
- parascaris equorum
- swine lice
- strongyloides westeri
- large strongyles
- trichnella spiralis
- a larva are ingested or penetrate the skin. Pass vascularly to the lungs which are then coughed up and swallowed as mature adults. May be passed transmammary to foals.
- b Can interfere with blood supply to gut and cause infarction and death. Likely involved with some types of colic in horses.
- c used to be an important zoonotic disease but not so common now due to public awareness.
- d adults 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.
- e treat pigs with ivomec.
5 Multiple choice questions
- adult 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.
- hematopinus asini.
- adults release proglottids in small or large intestine. Ova are passed in the feces and ingested by a free living mite. host ingests mite.
- large roundworm of horses.
- adults are medium sized with prominent buccal capsule with teeth around its top and its base. Ova have a thin, smooth shell with few shells when passed in feces. Indistinguishable from small strongyle ova.
5 True/False questions
bloodworms → strongylus vulgaris, strongylus edentatus, strongylus equinus are types of....
8-12 weeks → how often should horses in highly concentrated areas be dewormed?
onchocerca cervicalis → 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.
trichnella spiralis → 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.
anaplocephala → adults are large, segmented with scolex at anterior end. Up to 8 m long. Eggs are irregularly shaped and contain 6 hooked larva. Similar to monezia in ruminants.