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Parasitology > Protozoa - Coccidia of Horse, cattle, pig and carnivores > Flashcards

Protozoa - Coccidia of Horse, cattle, pig and carnivores Flashcards

1
Q

Coccidiosis of cattle species

A 
E. zuernii
E. bovis
E. ellipsoidalis 
E. alabamensis 
E. auburnensis
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2
Q

Which Eimeria spp. is highly pathogenic in cattle?

A

E. zuernii

E. bovis

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3
Q

Which Eimeria spp. is found in cattle?

A

E. bovis and E. zuernii are the most pathogenic in cattle

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4
Q

Which Eimeria sp. may have a high pathogenicity similar to E. zuernii? (?)

A 
E. alabamensis
According to notes, the following have similar pathogenicity in cattle:
E. zuernii – E. bovis (most)
E. alabamensis – E. aubernensis
E. ellipsoidalis (least)
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5
Q

Coccidiosis of horse species

A

E. leuckarti – Small intestine

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6
Q

What characteristic lesion of Horse coccidiosis in small intestine?

A

Catarrhal-inflammatory changes

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7
Q

Cause of Horse coccidiosis?

A

E. leuckarti

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8
Q

What type of oocyst is E. leuckarti?

A

80 um, piriform, (thick, dark brown wall and large micropyle)

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9
Q

Cause of coccidiosis in sheep

A 
E. ovinoidalis (most pathogenic)
E. bakuensis 
E. crandallis 
E. parva 
E. ahsata
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10
Q

Cause of coccidiosis in goat

A

E. ninakohlyakimovae (most pathogenic)
E. arloingi
E. christenseni
E. caprina

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11
Q

Sheep Eimeria spp. and what it causes in the intestine:

A

Generally catarrh more or less evident.
E. ovinoidalis, E. crandallis, E. parva
Diffuse hyper-plasia and thickening of the wall of the caecum (occasionally of the colon), with necrosis, roughness, and small haemorrhages on the mucosal surface.
E. baukuensis, (E. arloingi - Goat) Greyish-white, flat/protuberant hyper-plastic nodules. Occasionally 4-7 mm polyp-like growths (enlarged villi) in the posterior small intestine: Nest of gamonts, many oocysts.

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12
Q

Cause of liver coccidiosis in rabbits

A

E. stiedai

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13
Q

Cause of intestinal coccidiosis of rabbit

A 
E. intestinal 
E. flavescens
E. piriformis
E. magna
E. irresidua
E. perforans
E. media 
E. exigua
E. veydovskyi 
E. caecicola
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14
Q

Which of the highly pathogenic Eimeria species is in right location?

A

E. flavescens in caecum

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15
Q

Which of the following is correct?

A

E. irresidua – Jejunum

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16
Q

Rabbit coccidiosis:

A

Small intestine x3 E. intestinalis E. magna E. irresidua

Large intestine x2 E. flavescens E. piriformis

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17
Q

Cause of coccidiosis of pig

A 
E. deblicki E. polita E. scabra E. spinosa (non-pathogenic)
Isospora suis (pathogenic)
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18
Q

What is not characteristic during Pig coccidiosis?

A

Haemorrhagic enteritis

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19
Q

Where are the lesions caused by Isospora suis mostly situated?

A

Jejunum

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20
Q

Which genus has sporulated oocysts with 2 sporocysts?

A

Isospora
Sporulated Isospora oocysts contain 2 sporocysts, and 4 sporozoites in each, with a wall without micropyle, containing neither oocyst residual body nor Stieda body

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21
Q

Cause of coccidiosis in dog

A

Isospora canis
I. ohioensis
I. burrowsi

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22
Q

Cause of coccidiosis in cat

A

Isospora felis

I. rivolta

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23
Q

Difference between Isospora and Eimeria?

A

Only Eimeria has cap, micropyle, and residual bodies

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24
Q

Difference between Neospora and Isospora?

A

Isospora do not have microcpyle in wall. Isospora oocysts do not have residual or stieda body.

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25
If Eimeria oocysts are recognised in Dog faeces, then: (?)
Belong to dogs as hosts, no pathological significance | Pseudoparasites
26
If Dog passes Eimeria in faeces (are detectable):
Not diagnostic Since in carnivores:- Healthy animal may also shed oocysts. With diarrhoea and copious oocyst shedding, other causative agents should be considered. Coccidia from consumed prey animals (rodents) may pass with the faeces (pseudo-parasites)
27
Dog coccidiosis:
Host specific, homoxenous parasites (with paratenic host only!)
28
Which species does not have Eimeria spp.?
Carnivores (have Isospora spp.)
29
Which is the most usual form of biliary coccidiosis in rabbit? A: Symptomless B: Acute C: Chronic D: Mild, subclinical
A: symptomless
30
``` What organ is affected by bovine coccidiosis? A: Whole digestive tract B: Small intestines C: Jejunum D: Large intestines ```
D: Large intestines
31
What size is the oocyst of Isospora suis? A: About 5 micrometers B: About 10 micrometers C: About 20 micometers D: About 50 micometers
C: About 20 micometers
32
How can we increase the sensitivity of detection of I. suis oocyst in the microscope? A: With autofluorescence B: With flotation C: With direct examination D: With sporulation
A: With autofluorescence
33
Where are the pathologic lesions that occur in case of I. suis infection? A: In cecum and ileum B: in duodenum C: In caecum and colon D: In stomach
A: In cecum and ileum
34
What does the hepatic lesions contains in case of Eimeria infection? A: Merozoites B: Gamonts and oocysts C: Sporozites D: Sporulated oocysts
B: Gamonts and oocysts
35
Which are the larges among the following ones? A: Neospora caninum B: Sarcocystis C: I. burrowsi D: I. felis
D: I. felis
36
What is the worst consequence of pig coccidiosis? A: Bleeding in the lumen of intestines B: Diarrhoea C: Catarrhal enteritis D: Dehydration
D: Dehydration
37
Diarrhoea caused by coccidiosis last for…in puppy. A: 1-2 days B: 1-2 weeks C: 1 year D: 3-5 weeks
B: 1-2 weeks
38
Diarrhoea caused by coccidiosis last for…in kittens. A: 1-2 days B: 1-2 weeks C: 1 year D: 3-5 weeks
A: 1-2 days
39
Which species can infect cats? A: I. canis B: E. felis C: I. rivolta D: I. ohioensis
C: I. rivolta
40
Which species can infect dog? A: I. canis B: E. stiedai C: I. felis D: E. canis
A: I. canis
41
What symptom is not caused by I. felis in cat? A: Diarrhoea B: Anaemia C: Exsiccosis D: Miocarditis
D: Miocarditis
42
What symptom is not caused by I. canis in dog? A: Diarrhoea B: Anaemia C: Exsiccosis D: Miocarditis
D: Miocarditis
43
What symptom is caused by I. suis in young pig? A: Diphtheric membrane in the mouth B: Necrotic lesions in the liver C: Myocarditis D: Diarrhoea
D: Diarrhoea
44
What symptom is caused by E. stiedai in rabbit? A: Diphtheric membrane in the mouth B: Necrotic lesions in the liver C: Cholangitis D: Anaemia
C: Cholangitis
45
``` Which species has the biggest oocyst in dogs? A: I. canis B: I. ohioensis C: I. canideal D: I. burrowsi ```
A: I. canis
46
What age of cattle is the most susceptible for Eimeria infection? A: 2-5 months old B: In 10-12 months C: 1-2 years D: After weaning
A: 2-5 months old
47
Which species affects the large intestines in rabbit?
E. flavescens
48
From what species do we not need to distinguish Isospora felis oocyst samples?
I. ohioensis
49
Which species has pinhead-sized nodules in the ileum?
E. magna
50
Who is infected by E. stiedai?
Other | Rabbit
51
Which species affects the cattle?
E. zuernii
52
What does a sporulated oocyst of E. stiedai contain?
Sporocyst
53
What species of Eimeria can appear as a merozoite in the bloody faeces?
E. zuernii
54
What kind of extra-intestinal symptoms can occur during Eimeria infection in calves?
CNS signs
55
In which species can you find E. intestinalis?
Rabbit
56
What can you find in fresh faeces?
Unsporulated oocysts
57
Coccidiosis infects pigs at what age?
8-15 days
58
What is affected in coccidiosis of carnivores?
Small intestine
59
What does the sporulated oocyst of E. stiedai contain?
4 sporocysts each containing 2 sporozoites
60
Which species of Eimeria can appear as merozoites in bloody faces?
E. zuernii of cattle
61
How many macrogametes develop from 1 micro-gamont?
21-30
62
How do you detect E. zuernii in the faeces?
Flotation test
63
Species of Eimeria found in the large intestine of the rabbit?
E. piriformis and E. flavescens
64
What is an unsporulated oocyst with regards to Eimeria?
Zygote
65
Which are the small intestine Eimeria species in the rabbit?
E. intestinalis, E. magna, E. irresidua
66
How do we detect an unsporulated Eimeria oocyst?
Flotation method
67
What do we see clinically when a rabbit has E. steidai?
Usually a sub-clinical infection
68
What form of oocysts can be found in the fresh faeces on the course of E. stedai infection?
Unsporulated
69
Which animal can be infected by E. intestinalis?
Rabbit
70
What form of Eimeria zuernii might appear sometimes in mucous faeces of calves?
Schizonts or meroziotes
71
At what age are rabbits most susceptible for intestinal Eimeria infection?
1-2 months
72
Where does the sporogony of Eimeria zuernii take place?
In the external environment
73
Where do calves usually get heavy infection with Coccidiosis?
In the feed lots and yards
74
Which method is used for courting oocysts in the faces during an Eimeria infection?
McMaster method
75
What is found in the faeces of animals infected by Eimeria?
Sporulated oocysts
76
What is unsporulated?
Zygote

Parasitology (4 decks)

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