Ranikhet (New Castle Disease): Its Symptom, Prevention and Control

Ranikhet (New Castle Disease)

It is an acute, highly contagious rapidly spreading respiratory and contagious rapidly spreading respiratory and nervous disease of poultry and other species of bird with high mortality.

The mortality in fowls varies from 50 to 100 percent.  This disease is caused by paramyxovirus.

Incubation period of Ranikhet/ New castle disease : 2 to 15 days

Symptoms of Ranikhet/ New castle disease :

  • Sneezing, gasping and often droopiness.

  • Dull and depressed with ruffled feathers.

  • Watery greenish diarrhoea, stool with an offensive smell.

  • Profuse salivation is also observed.

  • Rise in temperature.

  • Cracking sound are heard during respiration.

  • Twisting of head and paralysis.

  • Egg production is rapidly declined.

Prevention and Control of Ranikhet/ New castle disease :

  • Treatment is not effective in this disease hence; it is better to take preventive to immunize the birds.

  • Lasota or F1 vaccine is given to each chicken by intranasal or intraocular route in one to seven days old chicks and again vaccinated with Ranikhet vaccine at the age of 6 to 8 week (R2B and F2 strain) dose of this vaccine is 0.5 ml per bird given subcutaneously in wing web.

  • To control this disease strict sanitary measures plays a great value.

  • Slaughtering of all apparently ailing birds.

  • Removal of all infective materials such as droppings, residues of poultry feed and litter to distance and their incineration.

  • Observance of general cleanliness.

  • For each group of birds there should be provision of separate attendant.

  • All newly purchased birds should be kept in segregation for not less than 10 days before taking them into the farm.

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