Poultry Judging Practice Test 2026 – The All-in-One Guide to Master Your Judging Skills!

Newcastle disease is a highly contagious viral infection that affects poultry, causing a wide range of symptoms that can significantly impact their health and productivity. Some common symptoms include respiratory issues, which manifest as coughing, nasal discharge, and labored breathing. Additionally, the disease can result in neurological symptoms, such as a twisted neck, known as torticollis, where birds may display abnormal head positions due to the effects on the nervous system.

In terms of egg production, Newcastle disease can lead to poor shell quality, resulting in thin or deformed eggs. Infected birds often experience a drop in egg production due to the stress of the disease and overall health deterioration. The presence of both respiratory symptoms and reproductive issues highlights the multi-faceted nature of Newcastle disease and demonstrates why recognizing these signs is crucial for effective poultry management.

Thus, the choice indicating both respiratory stress and twisted neck, along with poor shell quality and a decrease in egg production, encompasses the various clinical signs associated with Newcastle disease, making it the comprehensive correct answer.