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Parasit exam 5 > parasit exam 5 > Flashcards

parasit exam 5 Flashcards

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1
Q

4 genera involved in HOCT

A

Haemochus contortus, Ostertagia spp, Cooperia spp, Trichostrongylus spp

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2
Q

Haemochus contortus common name

A

barber pole worm, strongyle, roundworm

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3
Q

Haemochus contortus host

A

ruminants, mostly sheep

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4
Q

IH of Haemochus contortus

A

none, direct life cycle

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5
Q

Geo Distribution of Haemochus contortus

A

more common in warmer climates

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6
Q

Haemochus contortus Routes of infestations

A

direct ingestion

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7
Q

Haemochus contortus sex

A

dioecious

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8
Q

Site of infestation Haemochus contortus

A

abomasum

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9
Q

Haemochus contortus pathogenesis(3)

A

depends on immunity, blood loss anemia, edema of submandibular tissue (bottle jaw)

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10
Q

Haemochus contortus how much blood can sheep lose?

A

1/5 blood volume per day in heavy infestation, with sever dyspnea and weakness

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11
Q

Haemochus contortus DX

A

ova in feces (TASE)

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12
Q

Haemochus contortus TX

A

Benzimidazole, Ivermectin, Doramectin, Levamectin

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13
Q

Haemochus contortus PHS

A

none

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14
Q

Ostertagia species

A

ostertagi, circumcincta

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15
Q

Ostertagia spp common name

A

brown stomach worm

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16
Q

Ostertagia spp hosts (2)

A

ostertagi:cattle, cicumcincta:sheep

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17
Q

Ostertagia spp IH

A

none, direct life cycle

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18
Q

Ostertagia spa life cycle

A

Winter ostertagiosis and summer ostertagiosis

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19
Q

Ostertagia spp winter ostertagiosis

A

ingestion in fall, worm knows that it needs to winter, L4 hypo biotic stage, when warm temp will go to L5 adult stage

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20
Q

Ostertagia spp summer ostertagiosis

A

straight through life cycle

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21
Q

Ostertagia spp site of infestation

A

abomasum

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22
Q

Ostertagia spp pathogenesis(5)

A

local necrosis, ADR, dyspnea, scours, death, Morocco leather abomasum

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23
Q

most important parasite of young calves

A

Ostertagia ostertagi

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24
Q

morocco leather abomasum

A

small white nodules with worms protruding out of stomach

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25
Ostertagia spp DX
ova in feces, larval culture
26
Ostertagia spp TX
Ivermectin, Doramectin, Fenbendazole
27
Ostertagia spp PHS
none
28
Cooperia spp
punctata, curtice, oncophora
29
Cooperia spp common name
cattle bankrupt worm
30
Cooperia spp host(3)
oncophora:cattle, punctata:cattle, curticei:sheep, goat
31
Cooperia spp IH
none, direct digestion
32
Most common ruminant parasite genus
cooperia spp
33
Site of infestation Cooperia spp
small intestines
34
Cooperia spp pathogenesis
scours, anorexia, depressed growth, ADR, emaciation of younger calves
35
Cooperia spp DX
ova in feces, larval culture, adult necropsy
36
Cooperia spp TX
Fenbendazole, Ivermectin
37
Cooperia spp PHS
none
38
Trichostrongylus species(3)
axei, colubrifromis, vitrinus
39
Trichostrongylus spp common name
hair worms, black scours
40
Trichostrongylus spp host
cattle, sheep
41
Trichostrongylus spp IH
none, direct life cycle
42
Trichostrongylus spp site of infestation
abomasum, occasionally duodenum
43
Trichostrongylus spp pathogenesis
none with small infestations, gastritis and scours with large infestation
44
Trichostrongylus spp DX
ova in feces, larval culture, necropsy
45
Trichostrongylus TX
ivermectin, fenbendazole
46
Trichostrongylus PHS
none
47
Nematodirus spp intermediate host
none, direct life cycle
48
largest ruminant ova
Nematodirus spp
49
Nematodirus spp site of infestation
small intestines
50
Nematodirus spp pathogenesis (2)
atrophy, necrosis to small intestinal villi
51
Nematodirus spp DX
ova in feces
52
Nematodirus spp TX
Bendimidazole, Doramectin, Eprinomectin
53
Oesophagostumum species (2)
columbianum, dentatum
54
Oesophagostumum species host (2)
columbianumz;cattle, dentatum:swine
55
Oesophagostumum common name
nodular worm
56
Oesophagostumum spp intermediate host
none, direct life cycle
57
Oesophagostumum spp life cycle
L4 larva in large intestines, makes nodules up to a year, emerge from nodule to lumen and develops to adult stage
58
Oesophagostumum spp site of infestation
large intestines
59
Oesophagostumum spp pathogenesis(6)
due to larva not adults, occasional intussusception of large intestines, acute enteritis, diarrhea, weakness, emaciation
60
Oesophagostumum spp DX
ova in feces
61
Oesophagostumum spp TX
fenbendazole, ivermectin
62
Stephanurus dentatus common name
kidney worm of swine
63
Stephanurus dentatus host
swine
64
Stephanurus dentatus intermediate host
none
65
Stephanurus dentatus paratenic host
earthworm
66
Stephanurus dentatus life cycle
ingestion, live migration 4-9 months, destroys live then to kidney
67
Stephanurus dentatus DX
TASE in urine
68
Stephanurus dentatus site of infestation
larva:liver, adult:renal pelvis, ureters
69
Stephanurus dentatus pathogenesis(4)
liver damage, emaciation, paralysis if larva ectopic, death
70
Stephanurus dentatus DX
ova in urine
71
Stephanurus dentatus TX
fenbendzole, ivermectin, levasmisole for adults
72
TASE in swine urine is diagnostic for
Stephanurus dentatus

Parasit exam 5 (2 decks)

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