Question

Coryza disease in poultry is spread by
A. Litter
B. Water
C. Air
D. Feed

Answer 1

Hint: Several types of microorganisms are responsible for causing several diseases and pathogenic health conditions in plants, animals, birds as well as humans. Some of the microorganisms are responsible for causing diseases in domesticated animals and birds which may or not contaminate humans but it renders economic loss.

Complete answer:
Poultry are various types of domesticated birds especially chicken, which are domesticated and reared for their eggs, meat or even feathers. Most of the birds are members of the superorder Galloanserae (fowl), especially the order Galliformes which includes chickens, quails and turkeys. Poultry has been domesticated for several thousands of years.

Poultry is one of the most consumed meat and it provides nutritive beneficial food with low fat and high quality protein. The farming and rearing of poultry, especially chickens are done on a large commercial basis. The extensive flocks of birds are reared in poultry farms, foraged during the day and housed during the night. The rearing of the birds in the poultry farms has some animal welfare associated with it. Diseases are common and they spread through the flock and if they are not checked in time can cause damage to the entire flock.

The Coryza disease is an infectious disease in chickens and is caused by bacterium Avibacterium paragallinarum. The bacterium Avibacterium paragallinarum is also known as Haemophilus paragallinarum. It is a contagious respiratory infection of chickens. The disease mostly occurs in adult chickens and it spreads to the other birds of the flock. The main symptoms include swelling around the face and formation of watery pus like discharges from the eyes and nostrils of the infected birds. It causes difficulty in breathing, sneezing, loss of appetite and as a result, there is decreased egg production.

The disease mainly spreads through direct contact of the birds. The other methods of transmission are through contaminated sources of water and other methods. There is a tendency of sneezing and production of watery nasal discharge. The bacterium may also infect other birds as air borne droplets. The recovered birds can also serve as carriers and cause to spread the disease. The treatment of these diseases includes water and feed medication. Several antibiotics such as fluoroquinolones and macrolides are used as active antibiotics for treatment.

Hence, The correct answer is option (B).

Note: Coryza disease in poultry is caused due to a bacterium which causes nasal inflammation, edema and swelling of the face. The other important symptoms include watery pus formation, serous discharges and loss of activeness. It subsequently causes loss of appetite, sneezing and decreased egg production. Due to sneezing, the infected bird may infect other birds.