A Study Of Gastrointestinal Parasites Of Domesticated Duck (Anas Platyrhyn chos Linnaeus, 1758) In Chandragiri Municipality, Kahmandu, Nepal
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Department of Zoology
Abstract
Ducks (Anas platyrhynchos Linnaeus, 1758) are under order of Anseriformes ( water fowl) of family Anatidae which contains 146 species and 43 genera. A cross-sectional study was conducted to determine prevalence and associated risk factors of gastrointestinal parasites of ducks reared in three different locations (Bishnu-Devi, Kanchan-Basti and Balambu) of Chandragiri Municipality from November to February, 2017 using opportunistic random method. A total of 120 ducks were sampled to assess and identify different genera of gastrointestinal parasites of ducks (40 samples from each three location). The collected faecal samples were examined by differentiation floatation technique and sedimentation techniques for isolation of parasitic eggs and/or oocysts. Among 120 samples collected from the field, 81.67% samples were found to be positive with one or more than one gastro-intestinal parasites. Among 120 samples the highest occurrence was 80% nematodes followed by 21.67% of protozoan and 10.83% cestodes. Among seven different genera of gastro-intestinal parasites one genera of protozoa, five genera of nematodes, one genera of cestodes were observed where Ascaridia sp. (21.67%) followed by Capillaria sp. 16.67%, Hetarakis sp.15.00%, Tetrameres sp. 14.16% and Strongyloides sp. 12.50%. Only species of cestode was
Raillietina sp. 10.83% and only genera of protozoa was Eimeria sp. 21.67%. The study also revealed that, out of 120 ducks examined, 20 (16.67%) and 78(65.00%) ducks were found to harbour mixed and single infections respectively. Statistical analysis indicated that location (χ2 = 5.55; p<0.05) were significantly and insignificantly associated with the infection of gastrointestinal tract parasites in the study area . This study revealed that duck's gastrointestinal tract parasites were the major biological constraints contributing to the low productivity of ducks and decreases the economic benefits obtained from the sector. Therefore, further detailed investigations are needed to formulate appropriate and cost effective strategies for the control of gastrointestinal parasites in duck farms in Chandragiri municipality.