摘要:Poultry industry occupies an important position in the provision of animal protein and plays a vital role in the national economy. Helminthiasis caused by helminth parasites is one of the most common infections affecting health of poultry and indirectly leading to great economic loss among small livestock holders. The prevalence of gastrointestinal helminth parasites in Gallus gallus domesticus was studied from January 2017 to December 2019 in the parasitology laboratory of Zoology Department, Babasaheb Bhimrao Ambedkar University, Lucknow, India. In this study, a total of 557 domestic fowls were examined to identify the different types of gastrointestinal helminth infections. During regular examination of helminth parasites, the highest prevalence was observed for Ascaridia galli (41.7%), followed by Cotugnia diagnopora (17.6%), Raillietina tetragona (11%), Heterakis gallinarum (7.4%) and Raillietina cesticillus (6.64%). In the monsoon season, prevalence was found to be higher than the summer and winter. Females were found to be more infected than the males. There was no trematode infection detected during the study period. The gross pathological lesions were observed in case of Heterakis gallinarum infection. The results of this study suggest that both nematodes and cestodes are prevalent in domestic fowls in the studied area.