Clinical Parasitism of Small Ruminants Flashcards
You see this in a fecal smear from a sheep that is
over 3 weeks of age. What is your primary ddx?
Coccidiosis
You see this in a fecal smear from a sheep that is
LESS THAN 3 weeks of age. What is your primary ddx?
Cryptosporidium
How is coccidiosis diagnosed?
An oocyst count of greater than 5,000/gram of feces
PLUS
clinical signs (diarrhea, ill thrift, mucky butt, anorexia)
What are your 4 differentials if you suspect coccidiosis
as your primary ddx?
Colibacillosis
Salmonellosis
Clostridium
Cryptosporidiosis
What are the risk factors for coccidiosis?
Weaning
Overcrowding
Wet environment
Feet and feces in feeders
Poor nutrition
How is coccidiosis treated?
5 day course of:
Sulfonamides
Amprolium (beware of polioencephalomalacia)
or
Ionophores
What are the 3 parasites associated with Strongylosis?
Haemonchus
Trichostrongylus
Nematodirus
________ causes anemia and hypoproteinemia in lambs and kids
Haemonchus
This test detects sheep that are parasitized
in order to selectively deworm animals to decrease drug resistance
FAMACHA
What is the main clinical sign of strongylosis?
Bottle jaw
What 2 species of lungworms are we worried about in
small ruminants?
- Dictyocaulus filarial*
- Mullerius capillaris*
________ are the intermediate host of lungworms
Snails
The proper name of the Meningeal Worm
Paralaphestrongylus tenuis
The Meningeal Worm (Paralaphestrongylus tenuis) is a parasite
of ________. Sheep and goats are just the aberrant hosts.
White-tailed deer
What are the intermediate hosts of the
Meningeal Worm (Paralaphestrongylus tenuis)?
Snails and Slugs
Meningeal Worm (Paralaphestrongylus tenuis) infection
is seen more commonly in this season
Winter (parasite in migratory phase)
Bambi got hungry and ate Gary from Spongebob.
Bambi then went to hang out with Babe the pig and his sheepy friends.
Now, a bunch of Babe’s sheepy friends
are recumbent but BAR.
What is your primary ddx?
Meningeal Worm (Paralaphestrongylus tenuis)
How is Meningeal Worm (Paralaphestrongylus tenuis) treated?
FENBENDAZOLE and CORTICOSTEROIDS
(not ivermectin, unless trying to prevent infection)
The proper name for nasal bots.
Oestrus ovis
Which 2 species of flukes do we worry about with small
ruminants?
Fasciola and Paramphistomum
Flukes, found in low lying wet swampy areas,
cause ______ damage, which predisposes to
potentially deadly clostridial diseases
Liver
This species of tapeworms affects sheep, goats, and cattle
Monieza
DOGS have the potential to spread this species
of tapeworm’s cysts to sheep.
Taenia hydagenita
How is fly strike prevented in small ruminants?
Organophosphate or Pyrethrin dip/pour-on
Sheep scab is caused by this parasite
Psoroptes communis ovis
A herd of goats is seen with pruritic, crusty lesions on the
pastern area. What is your primary ddx?
Chorioptic mange
Which 2 species of babesia affect sheep and goats?
- Babesia motasi*
- Babesia ovis*
Babesiosis is _______ in younger animals
MILDER
An older sheep presents with acute onset
fever, anorexia, and jaundice.
Pyriform lobes are seen in its RBCs.
What is causing this animals condition?
Babesiosis
How is Babesiosis treated in sheep and goats?
Imidocarb
Diminazene
_______ strike in areas of infection or skin necrosis.
Their eggs hatch within hours, and animals are seen
wagging their tails, rubbing, and smacking their lips.
Blowflies
How do the lesions of Orf and Dermatophilosis
differ?
In ORF- lesions around mouth only and do not connect
In Dermatophilosis- lesions can be around mouth, but also other areas
What is the vector for Dermatophilosis in small ruminants?
Tick vector- Amblyomma ambigata
