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protozoology > Eimeriidae > Flashcards

Eimeriidae Flashcards

0
Q

coccidia are intercellular/intracellular

A

intracellular

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1
Q

organisms of family emeriidae are known as _________

A

coccidia

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2
Q

coccidia undergo sexual & asexual cycles in same host/different host

A

same

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3
Q

in coccidia, the stage outside the host undergoes the process of ____________

A

sporogony

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4
Q

_________ stage of coccidia leaves the host

A

oocyst

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5
Q

tyzzeria

A

Asporocystic

octosporozoic

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6
Q

Isospora

A

bisporocystic

tetrasporozoic

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7
Q

Eimeria

A

tetrasporocystic

bisporozoic

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8
Q

Wenyonella

A

tetrasporocystic

tetrasporozoic

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9
Q

cryptosporidium

A

asporocystic

tetrasporozoic

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10
Q

distinguishing characters in Cryotosporidium

  • meront
  • microgamete
A

meront have KNOB like attachment

microgamete lacks FLAGELLA

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11
Q

oocyst wall in unilayered/bilayered

A

bilayered

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12
Q

small thinning at narrow pole called _________

A

micropyle

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13
Q

micropyle is covered by __________

A

micropylar cap

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14
Q

dark granules seen near the micropyle called ___________

A

polar granule

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15
Q

define sporont

A

a zygote of coccidian protozoa enclosed in an oocyst, which undergoes sporogony to produce sprorocyst/sporozoites

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16
Q

part of protoplasm, left after spore formation is called ___________

A

oocystic residuum

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17
Q

define sporozoites

A

banana shaped elongated bodies formed from sporocyst

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18
Q

left out granular protoplasm after sporzoite formation is __________

A

sporocystic residuum

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19
Q

how is coccidia transmitted

A

ingestion of sporulated oocyst in feed & water

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20
Q

sporozoite in host cell is _________ in shape & is known as __________

A

round

trophozoite

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21
Q

trophozoite develops into __________ which further produces __________

A

schizont

merozoites

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22
Q

define schizont

A

a cell developed from trophozoite

which undergoes multiple fission to form merozoites

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23
Q

name two coccidians which have 4 generations of schizont

A

E. acervulina

E. mivati

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24
Q

types of schizonts

A

-giant
-epithelial
large
small

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25
Q

giant schizonts are always _______ generation schizonts

A

first

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26
Q

giant schizonts contain __________ merozoites

A

millions

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27
Q

giant schizonts are _______scopic & epithelial schizonts are _______scopic

A

macro

micro

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28
Q

large epithelial schizonts contain ________ merozoites

A

few hundred

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29
Q

small epithelial schizonts contain ________ merozoites

A

8-36

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30
Q

2nd to 4th generation schizonts are
Giant S
L epithelial S
S epithelial S

A

small epithelial schizont

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31
Q

merozoites after liberation, form _________ which further forms ___________

A

gamont

gamete

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32
Q

majority of merozoites from ________gametes

A

MACRO

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33
Q

multiple fission in seen in macrogamont/microgamont

A

microgamnt

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34
Q

no. of flagella in microgametes of coccidia

A

2

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35
Q

an exceptional coccidia having 3 flagella in microgamete is

A

E. perforans

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36
Q

fusion of microgametes with macrogametes forms __________, which further matures to _________ & passes out of faeces

A

zygote

oocyst

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37
Q

when does sporogony of oocyst occurs
A. before discharge in faeces
B. after discharge in faeces

A

after discharge in faeces i.e. outside the body

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38
Q

define prepatent period

A

time between
ingestion of 1st infective oocyst
to the time when
first oocyst appear in faeces

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39
Q

define patent period

A

time between
first discharge of oocyst in faces
to the time of
laste discharge of oocyst in faeces

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40
Q

optimum temperature for sporulation is

A

29 +- 3 C

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41
Q

________ eimerian species of occidia are recognized to parasitise intestines of cattle & buffalo

A

13

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42
Q

_________ is the only species reported from buffalo of india

A

E. bareillyi

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43
Q

coccidian of cattle & buffalo which is intranuclear

A

E. alabamensis

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44
Q

commonest coccidian species of cattle & buffalo

A

E. bovis

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45
Q

only capped eimerian species if cattle & buffalo

A

E. brasiliensis

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46
Q

microplyar cap is present in which coccidian of cattle & buffalo

A

E. brasiliensis

47
Q

biggest coccidian of cattle & buffalo

A

E. bukidnonensis(also oocyst wall spotted,velvety)

48
Q

smallest eimerian species of cattle & buffalo

A

E. subspherica

49
Q

coccidiosis in C & B, is a disease of young animals i.e. _________ age

A

1-6 month

50
Q

_______ act as source of infection for young calves

A

adult animal

51
Q

most pathogenic coccidian species of cattle & buffalo are

A

E. zuernii

E. bovis(also commonest)

52
Q

transmission of infection to young calves occur by _________ route

A

oraly, by ingestion of sporulated oocystin feed & water

53
Q

in coccidiosis in C & B, intially __________ is manifested

A

intestinal catarrh with watery faces for 1-2 days

54
Q

disease caused by most pathogenic coccidian of cattle & buffalo is called ________

A

winter coccidiosis

55
Q

paralysis of __________ is seen in last stage of cocciosis of cattle & buffalo

A

anal spinchter

56
Q

paralysis of anal spinchter exposes_________

A

rectal mucosa with transverse haemorrhagic striations

57
Q

when are oocysts avaialable in faeces in case of
E. bovis
E. zuernii

A

always in E. bovis

after clinical peak in E. zuernii

58
Q

name any two macroscopic diagnostic points of bovine coccidiosis

A

bloody diarrhoea

rectal tenesmus

59
Q

whitish,opalescent,papillomatous lesion in bovine coccidiosis contain ___________

A

gametocytes & oocyst of E. bareillyi

60
Q

coccidian species of sheep , which has dome shaped mciropylar cap

A

E. ahsata

61
Q

coccidian species of sheep in which micropylar cap is present ar broad end

A

E. granulosa

62
Q

Name the largest coccidian species of sheep

A

e. intricata

63
Q

which coccidian species of sheep have globidial schizonts

A

E. gilruthi

64
Q

name a coccidian that is found in sheep & goat both

A

E. gilruthi

65
Q

coccidian species of cilinical importance in sheep

A

E. ahsata
E. ovinoidalis
E. ovina
E. parva

66
Q

coccidial species of clinical importance in goat

A

E. alijevi
E. arloingi
E. christenseni

67
Q

in cocccidiosis of sheep & goat,what is present in

  • white grey papillomatous areas
  • haemorrhagic & thickened areas
A

gametocytes & oocyst

gametocytes & small epothelial schizont

68
Q

2 characters of E. cameli

A

oocyst are truncate-ovoid

oocyst wall has 3 layers

69
Q

in which coccidia of oigs, the sporozoite is vermiform

A

E. neodebliecki

70
Q

most pathogenic coccidians of pig

A

E. debliecki

E. scarba

71
Q

lesions of which coccidia of pigs reach upto large intestine

A

E. spinosa

72
Q

which species have biggest sized coccidan oocyst

A

Eimeria leuckarti

73
Q

E. leuckarti is found in ________ species

A

equine

74
Q

which species have largest size of oocyst amongg Isospora

A

Isospora felis

E. leukarti has biggest size among isospora & eimeria too

75
Q

name the first parasite protozoa observed

A

E. stiedae

76
Q

E. stiedae is found in which species

A

rabbit

77
Q

E. stiedae is found in which organ of rabbit

A

bile duct & liver

78
Q

disease caused by E. stiedae is known as _________

A

hepatic coccidiosis

79
Q

most common coccidia of domestic fowl

A

Eimeria acervulina

80
Q

coccidia of domestic fowl containing globule at borad end & narrower end

A

E. maxima

81
Q

the most PATHOGENIC coccidia of domestic fowl

A

E. tenella

82
Q

which coccidia of domestic fowl is reponsible for PASTY BLACKISH GREEN FAECES

A

wenyonella gallinae

83
Q

coccidia found in anterior part of intestine in fowl

A

E. acervulina
E. mivati
E. mitis

84
Q

coccidia found in middle portion of intestine in fowl

A

E. maxima

E. necatrix

85
Q

coccidia of fowl found in rectum

A

E. brunetti

86
Q

coccidia of fowl found in caecum

A

E. tenella

87
Q

clinical outbreaks of coccidiosis in domestic poultry occurs at what time of the year

A

after rains

88
Q

which is the most pathogenic coccidian of poultry

A

E. tenella(found in caecum)

89
Q

which is the second most pathogenic coccidian of poultry

A

E. necatrix(found in middle portion of intestine)

90
Q

BTMAN

A

B T M A N

1 4 4 - 6

91
Q

E. brunetti encountered at ______ age

A

1 week

92
Q

E. tenella encountered at ______ age

A

4 weeks

93
Q

E. maxima encountered at ______ age

A

4 weeks

94
Q

E. acervulina encountered at ______ age

A

all ages

95
Q

E. necatrix encountered at ______ age

A

6 weeks

96
Q

______ type of coccidiosis is recognised in poultry

A

3

97
Q

name the 3 type of coccidiosis recognized in poultry

A

intestinal
caecal
rectal

98
Q

intestinal coccidosis in poultry is caused by

A

E. acervulina
E. mivati
E. maxima
E. necatrix

99
Q

caecal coccidosis in poultry is caused by

A

E. tenella(most pathogenic)

100
Q

rectal coccidosis in poultry is caused by

A

E. brunetti

101
Q

in intestinal coccidiosis , watery diarrhoea is caused by

A

E. acervulina

E. mivati

102
Q

in intestinal coccidiosis, mucus is diarrhoea is caused by

A

E. maxima

103
Q

in intestinal coccidiosis , bloody diarrhoea is caused by

A

E. necatrix

104
Q

red diarrhoea in poultry is caused by

A

E. tenella(most pathogenic, causing caecal coccidiosis)

105
Q

cause of death in caecal coccidiosis

A

ANAEMIA due to red diarrhoea

106
Q

characterstic of dropping in E. brunetti infection of poultry

A

WHITE fluid dropping
with blood
& mucus cast

107
Q

lesions in E, acervulina infection

A

greyish white pinpoint foci/streaks runnig transversally

cartarrhal exudate without haemorrhage

108
Q

lesions in E. mivati infection

A

same as E. acervulina + petechial haemorrhages

109
Q

lesions in E. maxima infection

A 
intestine becomes dilated
mucoid exudate(orange or pink colored)
110
Q

lesions in E. necatrix infection

A

same as E. mivati + small intestine is thickened

111
Q

lesions in E. tenella infection. imp.

A

1-3days=petechial haemorrhages
4th day=haemorrhagic caeca
6th day=caecum enlarged

112
Q

in E. tenella infection/caecal coccidiosis ,why is caecum enlarged by 6 th day?

A

it contains black caseous mass

i.e. faeces,necrosed cellular debris,blood

113
Q

lesions in E. brunetti infection

A

haemorrhagic LADDER like streaks

haemorrhagic exudate

114
Q

in poultry coccidiosis, mortality starts before discharge of oocysts TRUE or FALSE

A

TRUE

protozoology (15 decks)

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