Prevention Of Gumboro Disease - The Use Of Cevac® Ibd L

19 Questions | By CEVA | Updated: Mar 14, 2022 | Attempts: 91

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FEATURES and BENEFITS - Intermediate Plus type vaccine (Winterfield 2512 G 61) : closely related to vvIBDV in the field but not isolated from vvIBD outbreak; No risk of reversion to pathogenicity (safety) - No immunosuppressive effect and No adverse effect on growth - Good response to other vaccinations (ND, IB) - CEVAC® IBD L spreads within the flock providing full protection - Presented in a blue colour cake: easy to see the dissolution specially for Drinking Water vaccination - Produced in a GMP plant (Good Manufacturing Practice)

Questions and Answers

1.

Gumboro disease is caused by :
- A.
  
  Paramyxovirus
- B.
  
  Birnavirus
- C.
  
  Coronavirus
2.

The replication of the IBDV occurs mainly in the :
- A.
  
  Thymus
- B.
  
  Bursa of Fabricius
- C.
  
  Liver
3.

The rate of MDA decline of broilers is faster the layers?
- A.
  
  True
- B.
  
  False
4.

VvIBDV can be prevented by classical intermediate vaccines?
- A.
  
  True
- B.
  
  False
5.

When performing Post Morten examination on a Gumboro diseased bird you would observe :
- A.
  
  Swollen edematous Bursa of Fabricius
- B.
  
  Hemorrhages in the muscles
- C.
  
  Swollen kidneys
- D.
  
  All the above mentioned
6.

One of the possible classification of IBDV is based in B/B index?
- A.
  
  True
- B.
  
  False
7.

How can B/B ratio be calculated:
- A.
  
  Weight of Bursa of Fabricius / Body weight
- B.
  
  Body weight / Weight of Bursa of Fabricius
8.

How can B/B index be calculated :
- A.
  
  B/B ratio of vaccinated birds / B/B ratio of unvaccinated birds
- B.
  
  B/B ratio of vaccinated birds / Body weight of vaccinated birds
- C.
  
  B/B ratio of vaccinated birds / Body weight of unvaccinated birds
- D.
  
  B/B ratio of unvaccinated birds / B/B ratio of vaccinated birds
9.

If B/B index is 0.2, the vaccine strain is classified as :
- A.
  
  Mild
- B.
  
  Intermediate
- C.
  
  Intermediate Plus
- D.
  
  Hot
10.

The vaccine take of level of intermediate plus vaccine is :
- A.
  
  Elisa 100
- B.
  
  Elisa 200
- C.
  
  Elisa 500
11.

The average age of vaccination of broilers with Cevac IBD L is :
- A.
  
  7 – 10 days
- B.
  
  12 – 16 days
- C.
  
  18 – 24 days
12.

A flock is considered of a poor uniformity (heterogeneous) when the %CV is:
- A.
  
  Less than 40%
- B.
  
  Between 40 – 60%
- C.
  
  Over than 80%
13.

To respect the “cold chain”, at which temperature the vaccine must be kept?
- A.
  
  0 – 4oC
- B.
  
  2 – 8oC
- C.
  
  6 – 10oC
- D.
  
  At room temperature
14.

Vaccine administered via drinking water must be consumed within :
- A.
  
  Half an hour
- B.
  
  Two hours
- C.
  
  Four hours
- D.
  
  Not important
15.

On the vaccination day, bell drinkers must be cleaned with :
- A.
  
  Disinfectants
- B.
  
  Detergents
- C.
  
  Detergents + disinfectants
- D.
  
  Only clean water
16.

Variant virus of IBD are present in Asia?
- A.
  
  True
- B.
  
  False
17.

What is the incubation period of IBD?
- A.
  
  2 – 4 hours
- B.
  
  2 – 4 days
- C.
  
  7 – 10 days
- D.
  
  10 – 15 days
18.

Prevention of IBD depends only on vaccination?
- A.
  
  True
- B.
  
  False
19.

The vaccine take of level of intermediate vaccine is :
- A.
  
  Elisa 100
- B.
  
  Elisa 200
- C.
  
  Elisa 500