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83 Cards in this Set
- Front
- Back
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Name the tapeworms of sheep
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Moneizia expansa
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Fasciola hepatica seen during what time of year
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autumn
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Fasciola hepatica-does it have an intermed host?
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yes-snail
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What nematodes are seen in goat and sheep
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HOT
Haemonchus, ostertagia, trichostrongylus axei |
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what nematode causes anemia and death
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Haemonchus
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What do you use to control nemaatodes in sheep/goat
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Benzamidazole, levamisole/morantel, ivermec/moxidec
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Benzamidazoles work by affecting
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Tubulin polymerization
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Only drug that will kill nematode eggs
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Benzamidazoles
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What nematode antiparasitic acts on Ach receptors
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Levamisole and morantel
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You will have a increased parasite egg count when what
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before and after parturition
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How many times should you rotate pasture?
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annually only
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Sheep should never be allowed to graze where
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where goats were
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How long do you wait to deworm after a rain?
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7-14 days
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How many eggs per gram will you see before you need to deworm
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>500/gram in spring
>1000/gram in fall |
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Lay eggs in response to fleece rot
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Blowfly( Lucilia sericata)
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May look like scrapie
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oestrus ovis(nasal bot)
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Broken head lesions
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head fly
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Sheep scab
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psoroptes ovis
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Psoroptes ovis can cause
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epileptic seizures from excretory products of mite
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A sheep that is wool biting and has fleece staining
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Lice (Bovicola, Damalina, Linognathus)
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Sheep ked
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Melophagus ovivnus
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What parasite can be seen in the bile duct of sheep
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Dicrocoelium dendriticum (lancet fluke)
Fasciola Hepatica-liver fluke |
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How do sheep get Lancet Fluke
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Ant eats slime from snail, sheep eats ant on blade of grass
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What can cause a pipestem liver
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Fasciola hepatics
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How is liver fluke transmitted
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Water snail-deep bedded vegetation
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What tapeworms can be seen in sheep/lamb
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Moneizia-lamb
Cysticercus(taenia ovis) ovis-sheep/goat |
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What is the measly mutton
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taenia ovis encysted in muscle
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Gid is also called
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Coenerus cerebralis, sturdy bladder worm
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What happens in gid
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Cyst in brain
Sheep circles to one s ide Blind in one eye Jerky gait |
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Brain and spinal tissue with yellow-gray streaks
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gid
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What is strike or fleece rot in sheep.
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Facultative myiasis-house fly, blow fly, or flesh fly lay eggs in open wounds
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What is false gid.
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Oestrus ovis
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How can you tell a sheep has false gid.
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Nose to ground to prevent adults from laying larvae.
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What mite of horses,cows,goats have long legs with jointed pedicles (stalks)
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Scabies mite
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Is a scabies mite a tunneling mite?
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n0, non burrowing, live on surface
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Which mite lives on the surface of the skin?
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Scabies
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Is a scabies mite reportable to the USDA?
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yes
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Is scabies or demodexx pruritic?
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scabies
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What is a unique cause of dystocia in sheep
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ring womb
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what is ring womb in sheep caused by
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clover toxicity
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Malpresentation/position in sheep not common except in
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fat ewes
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Dystocia most common in what sheep breeds
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Merinos, Rambuleaux
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What do you induce parturition with in ewes and why
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dexamethasone-not CL dependent
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What do you induce parturition in goats with
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PGF2 alpha-b/c doe unlike ewe is CL dependent
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Common pathogens causing pneumonia in in sheep
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pasteurellosis, past hemoolytica, mycoplasma ovipneumonia
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Common causes of parasitic pneumonia
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husk, dictyocaulus filaria, muellerius cappilarus
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Mechanical causes of pneumonia
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misuse with drenching gun
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What is Jaagsiekte
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pulmonary adenomatosis- neoplasm or growth which is contagious and transmissable in sheep in iceland
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Chronic progressive pneumonia aka
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Maedi or Maedi visna
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What is Visna
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disease of the nervous system
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What is the etiology of Chronic progressive pneumonia
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non oncogenic retrovirus
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Clinical signs of Chronic progressive pneumonia
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chronic pneumonia, arthritis, mastitis, ill thrift
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Name the coccidia found in sheep and goats
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Eimeria caproniva-both
eimeria-goat eimeria ovioidalis, crandallis- sheep |
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treatment of coccidia
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sulphonamides, amprolium, monensin, salinomycin,decoquinate
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Contagious pustular dermatitis aka
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orf, contagious ecthyma, scabby mouth
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Is orf contagious to humans
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yes
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where are lesions seen with orf
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mouth, nostrils, eyes, udder
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what is etiology of orf
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pox
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what is treatment for orf
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non specific
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What is the most important part of rise in parasitic eggs
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periparturient egg rise
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Treatment of nematode gastoenteritis
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Ivermectin in sheep
Goats- sensitive to anethehelmentics be careful |
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In pregnancy toxemia there is a negative energy balance due to
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Hypoglycemia, ketonemia, causing accumulation of acetoacetate, beta hydroxylation and acetones in blood
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Cause of pregnancy toxemia in in ewes
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twins or triplets
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CS of sheep with pregnancy toxemia
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encephalopathy, blindness, muscle tremor, metabolic acidosis
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What will you see in the aqueous humor of sheep with pregnancy toxemia
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elevated BHBA
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Contagious foot rot etiology
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Dichelobacter nodosus
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Source of contraction of foot rot
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Discharge from other sheep
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Breed most susc to foot rot(sheep)
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Merino
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What disease has the characteristic underrunning of the soft horn with progression to hard horn(sheep)
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foot rot
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What test do you use for foot rot
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protease test
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Enterotoxemia of suckling lambs caused by
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clostridium spp (type C)
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Yellow lamb disease etiology
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Clostr Type A
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CS of Yellow lamb disease
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hemolytic disease, jaunduce, severe abdominal pain
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Lamb dysentery etiology
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Clost type B and in young lambs type C(C in north america)
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Overeating disease aka
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pulpy kidney
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Acute toxicity from overeating disease caused by
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epsilon toxin
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What does epsilon toxin cause
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vascular and nervous tissue damage
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Are e.coli strains pathogenic in lambs and goats
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not usually
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White muscle disease aka
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subacute enzootic muscular dystrophy, stiff lamb disease
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White muscle disease caused by
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Se or Vit E def
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What is flying scapula and what disease is it seen with
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Upper borders of scapula protrude above vertebral column and seperated from t horax-WMD
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What are the 2 manifestations of pasteurella hemolytica
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Pneumonic- all ages
Septicemic- young Mastitis |
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What disease is often carried on the tonsils of healthy sheep/goat
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pasteurella
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