Coccidia of chicken and geese

Question 1

Where does the merozoite develop?

Answer 1

Inside schizont

Question 2

How many cells can be infected by a merozoite of Eimera?

Answer 2

1

gamont contains many merozoites

Question 3

How many gamonts can develop from one schizont?

Answer 3

Many

one gamont is made up of many merozoites

Question 4

How many epithelial cells can be infected by the content of one schizont of Eimera?

Answer 4

Many

Question 5

How can we recognise chicken coccidia by species in the simplest way?

Answer 5

Based on necroscopy findings

Question 6

In order to identify the species of a sporulated oocyte, what of the following is needed

Answer 6

Size of oocyte

Question 7

What does the unsporulated oocyst contain?

Answer 7

Zygote

Question 8

What does the sporulated oocysts contain?

Answer 8

Sporocysts

Question 9

Where does the sporozoite develop?

Answer 9

In the oocyst

Question 10

Where does the sporogony of Eimera maxima take place?

Answer 10

In the outer environment

Question 11

Which animal species can be infected by Eimera acervulina?

Answer 11

Chicken

Question 12

Where does the sporogony of Eimera acervulina take place?

Answer 12

In the outer environment

Question 13

Where do the Eimera acervulina gamonts develop?

Answer 13

Duodenum and jejunum

Question 14

What can we observe on the surface of mucosa in case of E. necatrix infection?

Answer 14

Unclotted blood

Question 15

Where does the sporogony of Eimera brunetti takes place?

Answer 15

In the outer environment

Question 16

Where do the Eimera brunetti schizonts develop?

Answer 16

In the lower part of the intestine

Question 17

Where do the Eimera tenalla schizonts develop?

Answer 17

Caecum

Question 18

Which symptom does not appear in case of renal coccidiosis?

Answer 18

Bloody faeces!

Does develop: weakness, torticollis, paralysis

Question 19

Where is the E. truncata primarily located?

Answer 19

Renal tubules

Question 20

Eimeria labbeanna occurs in?

Answer 20

Small intestine of pigeon

Question 21

What does the sporulated oocyst of coccidiosis contain?

Answer 21

4 sporocystes and 2 sporozoites

Question 22

How many epithelial cells can become infected by 1 Eimeria oocyst at the beginning of infection?

Answer 22

8 cells

4 sporocysts with 2 sporozoites each

Question 23

How many cells can be infected by the content of one Eimeria oocyst

Answer 23

8

Question 24

How many epithelial cells can be infected by the content of one Eimera sporocyst?

Answer 24

2

one sporocysts contains 2 sporozoites

Question 25

How many macrogametes can develop from one macrogamont?

Answer 25

1

Question 26

The correct order in the life cycle of Eimera?

Answer 26

Sporogony (in the outer environment), schizogony (in intestinal cells) gametogony (in intestinal cells) Sporogony of new oocysts in the outer environment

Question 27

Which species of Eimera are haemorrhagic?

Answer 27

Tenella, necatrix and brunetti

Question 28

Which species of Eimera are not haemorrhagic?

Answer 28

maxima, mitis, acervulina, praecox

Question 29

Which 3 species are not characterized by blood in the intestines?

Answer 29

mitis, acervulina, praecox

Question 30

Which method do you not use to identify the species in the chicken coccidosis?

Answer 30

McMaster method

Question 31

Time lapse from infection of host to apperence of parasite sexual product in faeces is called?

Answer 31

Praepatent period

Question 32

During gametogony when the merozoites develop into the female gametocytes they are called?

Answer 32

Macrogametocytes

Question 33

Which animal species can be infected by Eimera maxima?

Answer 33

Chicken

Question 34

What do you find on mucosa during an infection with E. maxima?

Answer 34

Patechia | Also on the serosa

Question 35

Which statement is true:

Answer 35

E maxima has a 30x20 oocyst that is characteristic

Question 36

Size of oocyte can be used as identification for which of these species?

Answer 36

E. maxima or ”other” (oocysts of other species are not characteristic to identify species)

Question 37

Which has slightly orange/salmon pink exudate in lumen?

Answer 37

E. maxima

Question 38

Where does the schizogony of Eimera acervulina take place?

Answer 38

In the epithel of duodenum and jejunum

Question 39

Which one has discrete white foci or transverse bands which are ladder-like?

Answer 39

E. acervulina

Question 40

Where do schizonts of Eimeria necatrix develop?

Answer 40

Jejunum and ileum

Question 41

Animals infected by E. brunetti?

Answer 41

Chickens

Question 42

Which is not true

Answer 42

E. brunetti is found in the duodenum

Question 43

Which animal species can be infected by Eimera tenella?

Answer 43

Chicken

Question 44

Where do schizonts of E. mitis develop?

Answer 44

In the jejunum

Question 45

In the goose what species of Eimeria affects the kidneys?

Answer 45

E. truncata

Question 46

Which of the following is a symptom of E. truncata?

Answer 46

Torticollis