Poultry Judging Practice Test

Which disease of poultry is primarily transmitted through eggs?

1. Infectious Bronchitis

2. Infectious Synovitis

3. Newcastle Disease

4. Avian Influenza

The correct answer is: Infectious Synovitis

Infectious Synovitis is primarily transmitted through eggs because it is caused by the bacterium Mycoplasma synoviae, which can reside in the reproductive tract of infected hens. When these hens lay eggs, the bacteria can be present in the egg and transmitted to the chicks upon hatching. This disease primarily affects joints and can lead to synovitis, resulting in significant health issues in young birds. The other diseases mentioned are primarily transmitted through different routes. Infectious Bronchitis, for example, is mainly spread through respiratory secretions and can also be transmitted through contaminated surfaces or equipment. Newcastle Disease is highly contagious and typically spreads through direct contact with infected birds or contaminated environments, rather than through eggs. Similarly, Avian Influenza mainly spreads through respiratory droplets, contaminated feed, water, or surfaces, rather than being egg-transmitted. Understanding these transmission routes is crucial for effective disease control and prevention in poultry flocks.