5 Written Questions
5 Matching Questions
- oxyuris equi
- onchocerca cervicalis
- equine lice
- chorioptic mange
- a 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.
- b often show no clinical signs. Can cause itchy lesions, worse in the summer. Adults in ligaments and tendons can cause swelling, pain and lameness.
- c cause severe pruritis. Infestation of lower limbs can cause foot stamping. Can also infect the tail head region in horses.
- d mainly a winter problem. can survive 2-3 days off of the host. Lay nits on hair shaft. They are host specific and transmitted by direct contact.
- e affects all ages. May cause anal pruritis, rubbing bum, broken tail hairs, rat tail.
5 Multiple Choice Questions
- adults release proglottids in small or large intestine. Ova are passed in the feces and ingested by a free living mite. host ingests mite.
- adults are rarely seen, live in the nuchal ligament and sometimes ligament and tendons of distal extremeties. Microfilaria found in conjunctiva and skin.
- adults live in the nucei ligament. Females produce microfilaria that migrate to the dermis.
- pig whipworms.
5 True/False Questions
oxyuris equi → treat pigs with ivome, dectomax or safeguard.
ascaris suum → are a potentially zoonotic parasite if humans ingest infested eggs.
eqvalan, panomec, quest → treat most equine endoparasites with these 3 dewormers.
strongyloides westeri → a parasite which invades the spinal cord and causes a disease called equine protozoal myeloencephalitis.
large strongyles → Can interfere with blood supply to gut and cause infarction and death. Likely involved with some types of colic in horses.