Examination of faecal samples from 341 animals reared at Nandankanan Zoological Park, Orissa revealed 51.57% overall prevalence rate of gastrointestinal helminthic infections. The intensity of infection was maximum during monsoon (57.49%) followed by post-monsoon (49.10%) and pre-monsoon (47.62%). Highest degree of parasitic burden was recorded in carnivores (89.77%). Nematode parasites comprising
Zoological Park, Prevalence, Gastro-intestinal helminths, Orissa