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Updated: Apr 24, 2026

Trichuris muris Infection: A Model of Type 2 Immunity and Inflammation in the Gut
Published on: May 24, 2011
Gastrointestinal helminthes of green-winged teal (Anas crecca) from North Iran
Mohammad Reza Youssefi1, Seyed Hossein Hosseini2, Amir Hossein Alizadeh Tabarestani3
1Department of Veterinary Parasitology, Islamic Azad University, Babol Branch, Babol, Iran.
Objective:
To determine the helminth parasites of Anas crecca (A. crecca) in one of proper refuges of Iran, Fereydunkenar.
Methods:
A total number of one hundred thirty-six gastrointestinal tracts of green-winged teal (A. crecca) were collected from Fereydunkenar, Mazandaran province during September and October 2011. The gastrointestinal tracts were examined for helminth infection.
Results:
The total infection rate was 70.50% (96) that 68.96% (40) of males and 71.79% (56) of females shown helminthes infection. The examined A. crecca harbored one species of Nematoda, Cestoda and two species of Digenea which were as following: Contracaecum larvae (from stomach wall), Diorchis stefanskii (D. stefanskii) (from small intestine), Hypoderaeum conoideum (from small intestine) and Notocotylus attenuatus (N. attenuatus) (from caecum), respectively. There was no significant difference in the prevalence of infection between examined males and females ducks in Hypoderaeum conoideum, D. stefanskii and N. attenuatus (P>0.05) whereas a significant relationship was observed between males and females in Contracaecum larvae (P<0.05).
Conclusions:
Based on the results of the present study, we conclude that A. crecca plays a prominent role in transmission of mentioned parasites. In addition, this is the first report of Contracaecum larvae, D. stefanskii and N. attenuatus from A. crecca in Iran.

