Lab Review: Parasitology (Ruminants)
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Name the "hot worm" speciecies of the genus richostronglyes:
Trichostrongyles are nematodes that resemble....
Who are the larger trichostrongyles with tapered ends? N
Adult trichostrongyles are found where?AI
Haemonchus contortus (a type of trichostongyle) is aka the
barber pole worm
Haemoncus contortus is found in the abomasum of who? SGA
What does Haemonchus contortus cause? AB
- bottle jaw (edema of lower jaw)
What gives Haemonchus contortus its claim to fame?
resistant to many anthilmentics
What is the intestinal threadworm of ruminants?SP
What do the parthenogenic females of strongyloides papillosus do?
lay unfertilized eggs that develop into individual larvated eggs
Why are strongyloides papilloss found free living in feces?
because they do not attach to the small intestine
MOI strongyloides papillosus:SIT
- skin-b/t hooves
- transmammary in cows
Strongyloides papillosus are coughed up and swallowed. What do they cause?DWB
- weight loss
- blood in feces
What is the cestode tapeworm of ruminants?M
Which moniezia sp. is triangular/pyramid shape and found in sheep?ME
Which moniezia species is square/cuboidal shaped and is common in cattle?MB
Moniezia may or may not be harmful depending on size. What is the IH?
oribatid grain mite
What is the ruminant liver fluke?FH
Fasciola hepatica is a trematode found in fecal sedimentation why?
Why does Fasciola hepatica cause the most economic concern?LC
- liver rot
- condemation of cattle at slaughter
What is the ruminant coccida/protozoan that causes d+?E
What is the oval shaped eimeria in cows?B
What eimeria is spherical and found in sheep and goats?z
Can an animal be infected with more than one species of eimeria?
What is found in calves and crias(baby alpaca)?CP
Cryposporidium parvum is most often found in feces and is prepared with what?
Sheathers sugar solution
Cryptosporidium causes d+++ in humans and is easily identified with what staining technique?
What is aka the horn fly/biting house fly and is the cause of the greatest economic loss from an arthropod?HI
What does haematobia irritans carry?SA
What does this cause?
- staph aureus
- mastitis in cows
Adult haematobia irritans feed on the host's blood and females lay eggs where?
What is beelike and aka the nasal bot fly?OO
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