Coccidiosis And Mycoplasmosis

Question 1

Common and economically significant parasitic disease that affects poultry worldwide

Answer 1

Coccidiosis

Question 2

Being the most common to be in infected and ostriches and ducks to be the least infected in coccidiosis

Answer 2

Broiler chickens

Question 3

Coccidiosis caused by?

Answer 3

Protozoan parasite of genus Eimeria

Question 4

Species of genus Eimeria in Chickens:

Answer 4

E. acervulina
E. maxima
E. tenella

Question 6

Species of genus Eimeria in Ostrich:

Answer 6

E. columbae
E. columbarum

Question 8

Species of genus Eimeria in ducks:

Answer 8

E. anatis

Question 9

Coccidiosis attach to the?

Answer 9

Intestinal lining

Question 10

Coccidiosis transmitted via?

Answer 10

Fecal-oral route

Question 11

Key factors that promotes transmission in coccidiosis:

Answer 11

Overcrowding
Wet or humid conditions
Poor sanitation
Lack of Biosecurity measures

Question 12

Coccidiosis - In the intestine, the oocyst breaks open and releases ? Which invade intestinal epithelial cells.

Answer 12

Sporozoites

Question 13

Coccidiosis - Inside the cells, sporozoites multiply rapidly, forming merozoites it is called?

Answer 13

Asexual Reproduction(Schizogony)

Question 14

The infected cells rupture, releasing ? that invade new cells, repeating the cycle.

Answer 14

Merozoites

Question 15

Some merozoites develop into male (microgametes) and female(macrogametes) formz, whic cuse to form new oocysts. It is called?

Answer 15

Sexual reproduction (Gametogony)

Question 16

Clinical findings of Coccidiosis

Answer 16

Diarrhea, often bloody(especially with E. tenella
Reduced weight gain and appetite
Ruffled feathers
Pale skin
Decreased egg production(in laying hens)
Sudden death (severe infections)

Question 17

Coccidiosis lesions:

Answer 17

Hemorrhages in the intestinal mucosa
Thickened, inflamed, or necrotic gut walls
Blood in the ceca or feces
Balloning or dilated intestines
Sloughed intestinal lining
White or yellowish plaques or caseous material

Question 18

Coccidiosis diagnosis

Answer 18

Post mortem Examination
Microscopic examination
Lesion scoring
PCR or ELISA

Question 19

Treatment

Answer 19

Anticoccidial drugs:
Amprolium (block thiamine uptake in Eimeria)
Sulfonamide
Toltrazuril or Diclazuril ( for multiple stages of Eimeria)

Question 21

Mycoplasmosis caused by?

Answer 21

Mycoplasma gallisepticum
Mycoplasma synoviae

Question 22

Causes chronic respiratory disease in chickens and Infectious sinusitis in turkeys, chickens, game birds, pigeons, and passerine birds of all ages.

Answer 22

Mycoplasmosis

Question 23

Causes chronic respiratory disease in chickens and Infectious sinusitis in turkeys

Answer 23

M. gallisepticum

Question 24

Causes infections synovitis and eggshell abnormalities

Answer 24

M. synoviae

Question 25

Less common Mycoplasmosis

Answer 25

M. meleagridis M. iowae

Question 26

Mycoplasmosis transmission:

Answer 26

Vertical transmission Horizontal transmission

Question 27

Mycoplasmosis lesions

Answer 27

Respiratory lesions - Air ausculitis - Catarrhal or caseous exudate - Pneumonia and Tracheitis Joint lesions - swollen joints and tendon sheaths - yellow to gray caseous exudate - synovitis

Question 28

Treatment for Mycoplasmosis

Answer 28

Antibiotics - Tylosin - Tetracycline Supportive care Culling