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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
Q

If Eimeria oocysts are recognised in Dog faeces, then: (?)

A

Belong to dogs as hosts, no pathological significance

Pseudoparasites

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26
Q

If Dog passes Eimeria in faeces (are detectable):

A

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)

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27
Q

Dog coccidiosis:

A

Host specific, homoxenous parasites (with paratenic host only!)

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28
Q

Which species does not have Eimeria spp.?

A

Carnivores (have Isospora spp.)

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29
Q

Which is the most usual form of biliary coccidiosis in rabbit?

A: Symptomless
B: Acute
C: Chronic
D: Mild, subclinical

A

A: symptomless

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30
Q 
What organ is affected by bovine coccidiosis?
A: Whole digestive tract 
B: Small intestines
C: Jejunum 
D: Large intestines
A

D: Large intestines

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31
Q

What size is the oocyst of Isospora suis?

A: About 5 micrometers
B: About 10 micrometers
C: About 20 micometers
D: About 50 micometers

A

C: About 20 micometers

32
Q

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

A: With autofluorescence

33
Q

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

A: In cecum and ileum

34
Q

What does the hepatic lesions contains in case of Eimeria infection?

A: Merozoites
B: Gamonts and oocysts
C: Sporozites
D: Sporulated oocysts

A

B: Gamonts and oocysts

35
Q

Which are the larges among the following ones?

A: Neospora caninum B: Sarcocystis
C: I. burrowsi
D: I. felis

A

D: I. felis

36
Q

What is the worst consequence of pig coccidiosis?

A: Bleeding in the lumen of intestines
B: Diarrhoea
C: Catarrhal enteritis D: Dehydration

A

D: Dehydration

37
Q

Diarrhoea caused by coccidiosis last for…in puppy.

A: 1-2 days
B: 1-2 weeks
C: 1 year
D: 3-5 weeks

A

B: 1-2 weeks

38
Q

Diarrhoea caused by coccidiosis last for…in kittens.

A: 1-2 days
B: 1-2 weeks
C: 1 year
D: 3-5 weeks

A

A: 1-2 days

39
Q

Which species can infect cats?

A: I. canis
B: E. felis
C: I. rivolta
D: I. ohioensis

A

C: I. rivolta

40
Q

Which species can infect dog?

A: I. canis
B: E. stiedai
C: I. felis
D: E. canis

A

A: I. canis

41
Q

What symptom is not caused by I. felis in cat?

A: Diarrhoea
B: Anaemia
C: Exsiccosis
D: Miocarditis

A

D: Miocarditis

42
Q

What symptom is not caused by I. canis in dog?

A: Diarrhoea
B: Anaemia
C: Exsiccosis
D: Miocarditis

A

D: Miocarditis

43
Q

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

A

D: Diarrhoea

44
Q

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

A

C: Cholangitis

45
Q 
Which species has the biggest oocyst in dogs?
A: I. canis 
B: I. ohioensis 
C: I. canideal 
D: I. burrowsi
A

A: I. canis

46
Q

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

A: 2-5 months old

47
Q

Which species affects the large intestines in rabbit?

A

E. flavescens

48
Q

From what species do we not need to distinguish Isospora felis oocyst samples?

A

I. ohioensis

49
Q

Which species has pinhead-sized nodules in the ileum?

A

E. magna

50
Q

Who is infected by E. stiedai?

A

Other

Rabbit

51
Q

Which species affects the cattle?

A

E. zuernii

52
Q

What does a sporulated oocyst of E. stiedai contain?

A

Sporocyst

53
Q

What species of Eimeria can appear as a merozoite in the bloody faeces?

A

E. zuernii

54
Q

What kind of extra-intestinal symptoms can occur during Eimeria infection in
calves?

A

CNS signs

55
Q

In which species can you find E. intestinalis?

A

Rabbit

56
Q

What can you find in fresh faeces?

A

Unsporulated oocysts

57
Q

Coccidiosis infects pigs at what age?

A

8-15 days

58
Q

What is affected in coccidiosis of carnivores?

A

Small intestine

59
Q

What does the sporulated oocyst of E. stiedai contain?

A

4 sporocysts each containing 2 sporozoites

60
Q

Which species of Eimeria can appear as merozoites in bloody faces?

A

E. zuernii of cattle

61
Q

How many macrogametes develop from 1 micro-gamont?

A

21-30

62
Q

How do you detect E. zuernii in the faeces?

A

Flotation test

63
Q

Species of Eimeria found in the large intestine of the rabbit?

A

E. piriformis and E. flavescens

64
Q

What is an unsporulated oocyst with regards to Eimeria?

A

Zygote

65
Q

Which are the small intestine Eimeria species in the rabbit?

A

E. intestinalis, E. magna, E. irresidua

66
Q

How do we detect an unsporulated Eimeria oocyst?

A

Flotation method

67
Q

What do we see clinically when a rabbit has E. steidai?

A

Usually a sub-clinical infection

68
Q

What form of oocysts can be found in the fresh faeces on the course of
E. stedai infection?

A

Unsporulated

69
Q

Which animal can be infected by E. intestinalis?

A

Rabbit

70
Q

What form of Eimeria zuernii might appear sometimes in mucous faeces of
calves?

A

Schizonts or meroziotes

71
Q

At what age are rabbits most susceptible for intestinal Eimeria infection?

A

1-2 months

72
Q

Where does the sporogony of Eimeria zuernii take place?

A

In the external environment

73
Q

Where do calves usually get heavy infection with Coccidiosis?

A

In the feed lots and yards

74
Q

Which method is used for courting oocysts in the faces during an Eimeria
infection?

A

McMaster method

75
Q

What is found in the faeces of animals infected by Eimeria?

A

Sporulated oocysts

76
Q

What is unsporulated?

A

Zygote

Parasitology (4 decks)

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