The correct answer is: A. fowl pox
Fowl pox is a viral disease that affects chickens, turkeys, and other birds. It is characterized by the formation of wart-like lesions on the skin, comb, and wattles. The disease is spread through contact with infected birds or their droppings. There is no cure for fowl pox, but it can be prevented by vaccination.
Tick fever is a tick-borne disease that affects chickens, turkeys, and other birds. It is caused by a bacterium called Borrelia anserina. The disease is characterized by fever, anemia, and weight loss. There is no cure for tick fever, but it can be prevented by using tick control measures.
Ranikhet disease is a viral disease that affects chickens, turkeys, and other birds. It is characterized by sudden death, respiratory problems, and neurological signs. There is no cure for ranikhet disease, but it can be prevented by vaccination.
Coryza is a bacterial disease that affects chickens, turkeys, and other birds. It is characterized by sneezing, coughing, and nasal discharge. There is no cure for coryza, but it can be treated with antibiotics.
In conclusion, the most common disease of poultry in India is fowl pox. It is a viral disease that affects chickens, turkeys, and other birds. It is characterized by the formation of wart-like lesions on the skin, comb, and wattles. The disease is spread through contact with infected birds or their droppings. There is no cure for fowl pox, but it can be prevented by vaccination.