author(s)
Anurag Jena, Asit Ranjan Deb, Lalita Kumari, Subhranshu Sekhar Biswal and SK Joshi

abstract
During the present study, a total of 1506 fecal samples of Chottanagpuri sheep in and around Ranchi, were examined, out of which 942 were found positive for gastrointestinal helminthiasis and showing overall prevalence rate of 62.55%, of which trematodes were 467 (31.01%), cestodes were 329 (21.85%) and nematodes had highest prevalence i.e. 588 (39.04%) with a mixed infection of 442 (29.35%). Different trematodes detected were Fasciola spp. (28.49%) and Paramphistomum spp. (29.28%); only Moniezia expansa (21.18%) and Moniezia benedeni (12.42%) were detected in cestodes and the nematodes found were Strongyloides spp. (21.51%), Trichostrongylus spp. (6.24%), Haemonchus spp. (36.59%), Trichuris spp. (11.69%), Oesophagostomum spp. (23.44%), Bunostomum spp. (1.06%), Ostertagia spp. (13.08%) and Cooperia spp. (1.26%). Highly significant correlation (P<0.01) was recorded between animals infected and different GI helminth infections. The present research provided the prevalence pattern and risk factors associated with gastrointestinal helminthiasis.