Distribution of gastrointestinal helminths in chicken farms in the Gharb region--Morocco.

Gastrointestinal tracts of 300 chickens from three villages of the Gharb region, Morocco, were examined for adult helminths during 2002-2005. Helminth species found were: Notocotylus gallinarum (prevalence 0.7%), Hymenolepis carioca (3.7%), Raillietina echinobothrida (5.7%), Hymenolepis contaniana (7%), Raillietina tretragona (9.3%), Raillietina cesticillus (12%), Capillaria obsignata (6%), Subulura brumpti (15.3%), Heterakis gallinarum (10%), Cheilospirura hamulosa (2.7%), Dispharynx nasuta (5.3%), Ascaridia galli (9%), and Tetrameres sp. (3.3%). The prevalence and mean intensity of helminth infections did not differ significantly between male and female chickens.