Which of the following causative agents is responsible for Ranikhet disease (also known as Newcastle disease) in poultry ?
Paramyxovirus
Ranikhet disease, known internationally as Newcastle disease, is caused by a paramyxovirus — specifically Avian orthoavulavirus 1, still widely called Newcastle disease virus, a single-stranded RNA virus of the family Paramyxoviridae.
It spreads through respiratory droplets and droppings and shows up as gasping, twisting of the neck, paralysis, greenish diarrhoea and a sudden collapse in egg production. Velogenic strains can wipe out an unvaccinated flock within days, which is why the LaSota and F1 vaccines are central to poultry management in India.
The other agents cause different poultry conditions. Avipoxvirus produces fowl pox with scabby lesions on the comb and wattles, herpesvirus causes Marek's disease and infectious laryngotracheitis, and orthomyxovirus is the family to which avian influenza belongs.
Hence, the answer is Paramyxovirus.
Important Questions from Animal Husbandry
The 'Kheri' breed of sheep is found in
- Which of the following is an exotic breed of poultry?
Milk producing female cale is called________.
Animal feed which is low in fibre and contains relatively high levels of protein is called _________.
Which of the following is not correctly matched?
Animal Breed (a) Buffalo Bhadawari (b) Cow Sindhi (c) Goat Jamunapari (d) Sheep Tharparkar
