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30 Cards in this Set
- Front
- Back
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Trichuris Vulpus
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-Adults live cecum
-intermittent egg layers -bipolar ovum/yellow brown color -prepatent period 3 mos -3-4 weeks infective stage. -direct life cycle -no intermediates. -diarrhea Trichuris is whipworms |
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Operculum (trichuris)
egg characteristics and treatment |
Trichuris
-plugs both ends -routine for not showing up in fecal -synatrypical float more accurate -eggs survive soil for years. -treatment: -Panacur(venbendazol) liquid or granules - Drontal |
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Capillaria
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-intestinal parasite
-common in birds -fx resp./ urinary systems -eggs look like whipworm. |
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Lungworm in bladder
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C. plica in bladder
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Do antihelminths show effectiveness against the larval stage?
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Non do.
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antihelminths labeled for treatment of whipworms affect them how?
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Affect only a small portion of the life cycle. treated initially, 3 weeks and 3 months.
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How is the worming scheduled figured out?
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Goes by the prepatent period.
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Strategic deworming?
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not refering to more frequent or constant use of a product effective against whipwoms but rather proper timing to limit the potential for reinfection.
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Effective treatment strategy of whipworms
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-proper sanitation
-environmental contamination -life cycle of the whipworm -effects of anthelminitics on life cycle . |
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Life cycle of whipworm
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-egg passed in feces
-dog has to ingest month old contaminated feces to develop infection -larvae hatch/burrow into wall of jejunum and ileum (second half of small intestine) -larva leave jejunum -pass down cecum/colon (large intestines) -attacth to wall by their thread like heads with the handle portion of their whip shaped bodies lying free in lumen of intestines. -4 molts / 3 mos later adults reproduce. |
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How does the larva of whipworms affect the dog compared to adults?
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-both drink blood/cause irritation to gut mucosa.
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How to treat a whipworm yard infection?
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Lime , the eggs are vulnerable to dessication.
Possible to eliminate whipworms with good sanitation alone. |
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Infective whipworm larva develop in?
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1 month.
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Capillaria Aerophilia
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fox lungworm
infects dog and cat. bipolar plugs resp disease. |
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Lungworm larvae:
find: best diagnosis: tell from: |
may find in sputum or feces
must tell from strongyloides use fresh feces best diagnosis with Baerman apparatus |
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Baerman apparatus
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best diagnosis with lungworm
uses funnel, ring stand, water set up overnight mix feces with water on top of sponge larve migrate down funnel collect few drop from end of tube next AM view under microscope |
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Characteristics of animals with Trichuris Vulpis
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behaviorhal changes
4-71/2 cm long mucous bloody diarrhea, vomiting. |
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Trichuris Ovis
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sheep whipworm
yellowish brown barrel shaped thick egg shell and mucoid plug at both end. |
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Trichuris Suis
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pig whipworm
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Trichostrongyles:
Haemonchus spp. |
hookworms of cattle and sheep
produces larger eggs |
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hypobiosis:
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arrested development larvae remain dormant in body until environmental conditions are good.
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Cooperia spp.
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-small intestinal worms
-look like hookworms -morula inside -no plugs on end -penetrate sm intestine/suck blood -cause death in calves -damage to intestinal wall/protein loss |
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Haemonchus soo.
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-Barberpole worm
-wraps around white uterine body -lives in abomasum cattle/sheep -anemia calves/lambs -not alot of diarrhea- |
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Ostertagia spp
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-brown stomach worm
-can be pathogenic -cattle/sheep -goes in abomasum/gastric glands/can't produce HCL -trouble breaking down food. |
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Dictyocaulus Viviparus
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-cattle lung worm larva
-fx cattle -adults in bronchi -up to 8cm long -eggs coughed up/swallowed/ hatched intestines/larvae found in fecal -Baerman Apparatus -Dont float well |
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Dictyocaulus filaria
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-ruminant lungworm
-sheep/goats. |
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Pinworms
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-adults in colon/rectum
-eggs attacthed to anus -priritus -anal rubbing -may see egg in feces/hair around anus -most common equine/rodents. -cellophane tape test. -Oxyuris Equi |
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Spriocerci Lupi
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-esophageal worm of dog
-nodules in esophagus -may see gastric nodules -may cause neoplasia in dogs -eggs thick shell -contain a larva -prepatent period 6 mos -edema legs (pitting edema stays pushed down) -adults embed esophagus/ aorta/stomach -indirect life cycle -intermediate host/a beetle |
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Dictophyma Renale
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-giant kidney worm of dog
-lrgst parasitic nematode -may destroy kidney -eggs seen in urine sediment -barrel/bipolar/yellow brown -prepatent period 18 weeks -male 35 cm long -female 103 cm long (4ft) (take in a cysto sample bc it's really clean) |
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Stephanurus Dentatus
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-kidney worm
-indirect -intermediate host/free living worm |
