5 Written questions
5 Matching questions
- chorioptic mange
- sarcoptic mange
- equine lice
- onchocerca cervicalis
- a 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.
- b quest gel dewormer has been shown to be effective against encyted small strongyles.
- c adults live in the nucei ligament. Females produce microfilaria that migrate to the dermis.
- d cause severe pruritis. Infestation of lower limbs can cause foot stamping. Can also infect the tail head region in horses.
- e occurs in pigs as well as other livestock species. Not as common anymore.
5 Multiple choice questions
- treat pigs with ivomec.
- often show no clinical signs. Can cause itchy lesions, worse in the summer. Adults in ligaments and tendons can cause swelling, pain and lameness.
- male adults are small 12 mm and not usually seen but females can be up to 6 inches long, pale with white pin-like tail. Ova are pale, elongated with 1 flattened side and operculum on 1 end.
- hematopinus asini.
- adults are rarely seen, live in the nuchal ligament and sometimes ligament and tendons of distal extremeties. Microfilaria found in conjunctiva and skin.
5 True/False questions
EPM → causes CNS signs such as ataxia, weakness, stumbling, etc. Has a complex poorly understood life cycle.
large strongyles → adults are medium sized with a ring of teeth around front edge of mouth. Often reddish brown due to ingestion of blood. Ova have thin smooth shell containing clump of cells when passed in feces.
large strongyles → small strongyles.
oxyuris equi → adults live in large intestine. They mate, males die and females move into the rectum. Horses ingest infected larvated eggs.
equine lice → cause irritation which leads to rubbing and scratching and hair loss. Sucking lice can lead to anemia generally in young foals.