PREVALENCE OF NEWCASTLE DISEASE AMONG INDIAN PARROTS (PSITTACULA KRAMERI)
V. Vijayan and S. Sulochana
Prevalence of Newcastle disease among Indian parrots was investigated by sero conversion and by virus isolation methods. 16.5% of the 103 serum samples examined possessed HI antibody. The titre ranged from 20 to 160. None of the birds examined excreted the virus by orofaecal route.