Newcastle disease in poultry-poultry expert
Globally, the new castle disease (ND) is one of the most common and fatal viral disease in poultry at the commercial as well as small scale production flocks. The ND is caused by Paramyxoviridae virus. The disease was discovered for the first time in the area of Newcastle-on-Tyne, England in 1927. The virulence of the virus depends on the serotype of the virus itself and the host type. Mostly, susceptible in the chicken as compared to other birds.
The disease is very contagious and spreads to other birds rapidly. The first sign appears between 2-15 days. Sometime the attack of the virus is so strong that the birds may die without showing any symptom.
Possible transmission possibilities are:
Mortality can be up to 100%.
The most common three major symptoms present:
Early signs and less acute disease involves:
There is NOT any treatment available for the ND. However, antibiotics can be used to prevent secondary infections.
Vaccination and the biosecurity measures are the only possibilities to avoid the disease.
Commonly used vaccine:
Newcastle Disease Vaccine (LaSota Strain)
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