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Equine Parasites LAT

homework due 11/11/10

1.What age group do roundworms affect most? Foals, weanlings & yearlings.
2.When developing an intestinal parasite program, which types of parasites is it directed for? Large & small strongyles, ascarids, tapeworms, pinworms, botflies.
3.Where do ascarids live in the body? Small intestines.
4.Qhat is an ascarid? Roundworm, very large, yellowish white parasite that may pass out in the feces.
5.which type of parasite attaches to the wall of the stomach? stomach bot
6.what is the most common horse parasite? Small strongyles
7.what is the infective stage of a redworm? Third stage larva
8. what is another name for a redworm? Large strongyles/ cyathostomes
9.which parasites can migrate to the lungs and produce damage? ascarids
10.how are bots transmitted? lays egss on skin, then eggs are licked into the mouth, or they may burrow through the skin.
11. Name two types of parasites that may produce colic? Tapeworms, small strongyles
12.when should foals begin to be dewormed? 4-8 weeks
13.which type of parasite has developed a resistance to anthelminitics? Small Strongyles
14.what is an anthelminitic? antiparasitics-developed to eliminate parasites, some paralyze the parasite allowing the host to expel them,others prevent nutrient utilization or limit reproductive capabilities thus killing them or stopping their life cycle.
15.when is a boticide administered? applied in the fall after the first frost
16.what drug is commonly used to treat tapeworms? Praziquantel
17.what are the clinical signs of pinworms? Pruritis, hair loss, broken hair on tail, very irritating.
18. which type of dewormer is given in the fall? boticide
19.what is a common roundworm in horses? parascaris equorum
20.how does on diagnose pinworms? cellophane tape
21.where are tapeworms found in the body? ileocecal junction
22.are roundworms viable in the enviroment for very long? yes, live up to 10 years in pasture.
23.What is the definition of infarcation? the development of an infarct. infarct=an area of dying or dead tissue resulting from inadequate blood flow through blood vessels normally supplying the part
24.What is the definition of intussesception? an infolding of one part of the intestine into another.
25. List 3 factors that will increase the risk of ingestion of parasites? drug selection, treatment schedule, animal management
26.list 3 control measures to decrease the risk of infection? minimize number of horses in grazing area, rotate pastures, dispose of manure
27. What is a common drug used to treat strongyles? fenbendazole
28. what is a commonly used drug to treat tapeworms? praziquantel
29.what drug is commonly used to treat roundworms? ivermectin
30. what is a disadvangtage to a fecal flotation, when trying to identify strongyles? They all produce similiar eggs. so we just mark them as strongyle type ova.
31. how can one tell the difference between large strongyles and small strongyles? small do not migrate beyond the wall of the intestines.
32. what does fenbendazole treat in dogs,cats, & horses? Dogs:roundworms,hookworms, whipworms, and tapeworms,lung flukes,lungworms, and Giardia. cats:roundworms,hookworms, tapeworms,lungworms, lung flukes, pancreatic flukes,and Giardia horses:large and small strongyles, pinworms, and roundworms.
33. what does praziquaintel treat in dogs, cats & horses? Tapeworms
34. What does ivermectin treat in dogs, cats, horses? heartworm- ca/fe, roundworms- all, hookworms-ca/fe, strongyle, ear mites, scabies, demodex in dogs & cats, bots and pinworms in horses.
35. What does pyrantel pamoate treat in dogs, cats & horses? Hookworms- ca.fe, roundworms-all, strongyle, pinworms and tapeworms.
Created by: Alooper