Epidemiology of Nematodirus filicolis infection in goats in temperate humid zone of Sikkim

Out of 9,480 faecal sample examined, 1,622 (17.11%) were positive with a eggs per gram of faeces (EPG) range of 100-700. Highest prevalence was observed in May (26.57%). Examination of small intestines of slaughtered goats (365) showed 12.39% incidence of N. filicolis infection with worm count in the range of 2.22 - 18.17. The female/male ratio was 0.153. The incidence was more prevalent in animals above 2 years of age (11.96%) followed by 1-2 year (9.38%) while those below 1 year of age showed only 3.45% prevalence. Moreover, the prevalence was more in spring (22.44%) and summer (21.07%) compared with autumn (15.47%) and winter (9.08%).