INVESTIGATION OF GASTROINTESTINAL PARASITES OF SCAVENGING DUCKS AT SADAR UPZILLA IN SYLHET DISTRICT

Abstract

The present study was conducted to determine the prevalence of parasites of domestic duck (Anas boschus domesticus) under scavenging system of rearing in Sadar upazilla in Sylhet district, Bangladesh. For detail study, 192 ducks of different ages and sexes were collected from different areas of Sadar upazilla in Sylhet district and routine autopsy was done to collect the parasites. During the study 63.54% of ducks were found positive to at least one type of parasitic infection, which was then classified as 51.04% to trematode, 32.08% to cestode infection. At present investigation, parasites of 6 different genera were recorded consisting of 4 genera of trematode, 2 genera of cestode. Among the trematode parasites the prevalence of Echinostoma sp. (43.23%); Amphimerus sp. (30.20%); Catatropis sp. (19.79%); Hypodareum sp. (14.06%) and where is cestodes Hymenolepis sp. (22.91%), Fimbriaria sp. (11.97%). The overall prevalence of parasite varies significantly between male and female resulting higher prevalence in male (65.62%) than in female (61.45%). The prevalence of parasites increases significantly with the increase of host age 70.31% in older group (>12 month), 64.00% in middle age group (6-12 month) and 57.12% in younger group (<6 month). The interaction effects of age and sex on parasite was found insignificant which indicates no correlation of these factors on parasitic population in domestic duck. Thus, through the present study, it can be said that the parasitic infestation may be the major threats in domestic duck under scavenging system in Sadar Upazilla in Sylhet, Bangladesh.