Parasites Flashcards
What is the common name for Haemonchus contortus?
Barber’s Pole Worm
What is the life cycle of Haemonchus contortus?
adults attach in abomasum, eggs pass in feces, L3 is infectious stage, grazing goats eat L3 stage from grass
Haemonchus causes anemia and potentially death because it’s a voracious ____________________.
blood sucker
What is FAMACHA scoring and why is it useful?
allows for estimate of level of anemia, helps determine treatment
What is the most economically important parasite that affects sheep and goats production of pasture and is the most common cause of anemia?
Haemonchus contortus
What is the common name for Trichostrongylus axei?
Bankrupt worm/Small stomach worm
What is the life cycle of Trichostrongylus axei?
direct life cycle; adults lays eggs in small intestine, eggs leave through feces, eggs stay in soil until ingested as L3
What are some clinical signs of Trichostrongylus axei?
diarrhea, constipation, anorexia, weight less, weakness, death
What is the common name for Ostertagia osteragi?
Medium stomach worm/Brown stomach worm
What is the life cycle of Ostertagia osteragi?
Direct life cycle; larva develops in feces, L3 eaten from grass, migrate to gut mucosa, eggs pass through feces
What is the pathogenesis of Ostertagia osteragi?
loss of appetite, watery diarrhea, anorexia
What is the common name of Dictyocaulus viviparous?
Lungworm in cattle
What is the life cycle of Dictyocaulus viviparous?
eggs pass in feces, develop into L3, L3 are ingested
What is the pre-patent period of Dictyocaulus viviparous?
3-4 weeks
What are some clinical signs of Dictyocaulus viviparous?
dyspnea, coughing, harsh lung sounds
What is the common name for Fasciola hepatica?
Common liver fluke
What are the clinical signs of Fasciola hepatica?
fascioliasis, anemia, reduced milk production, hepatic damage, death, distended and painful abdomen
What is the intermediate host of Fasciola hepatica?
snail
What is the common name of Bunostomum phlebotomum?
Hookworm of cattle
What are the clinical signs of Bunostomum phlebotomum?
abdominal discomfort, anemia, lethargic, constipation
Bunostomum phlebotomum is a veracious _________________.
blood sucker
How is Bunostomum phlebotomum transmitted?
fecal to oral, cutaneous larval migrans
Where in the body is Bunostomum phlebotomum found?
small intestine
Is Bunostomum phlebotomum zoonotic?
can survive short amount of time in another host
What is the common name for Trichuris ovis?
Whipworm
Where in the body does Trichuris ovis effect?
large intestine
What is distinct about Trichuris ovis eggs?
bipolar plugs, football shaped
What is the common name for Moniezia benedini?
Tapeworm
What is the intermediate host for Moniezia benedini?
pasture mites (moss/beetle mites)
What do Moniezia benedini eggs look like?
square to triangle shaped, dark border
What kind of parasite is Cryptosporidium spp.?
protozoal parasite
Which species of Cryptosporidium spp. is zoonotic?
C. parvum
What are the clinical signs of Cryptosporisium spp.?
diarrhea, dehydration
What is the treatment for Cryptosporidium spp.?
no licensed treatment
supportive care
What is the scientific name for the large roundworm of the pig?
Ascaris
What can Ascarids cause in pigs?
milk spots on the liver
What is the scientific name for Whipworm in pigs?
Trichuris suis
What is the scientific name for Nodular Worms in pigs?
Oesophagostomum
What is the scientific name for Threadworms in pigs?
Strongyloides
What is the scientific name for Kidneyworms in pigs?
Stephanurus
What is the scientific name for Lungworms in pigs?
Metastrongylus
What is the scientific name for Coccidia in pigs?
Isospora suis or Eimeria
What is Haematopinus?
sucking louse of pigs
