Veterinary Epidemiology

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Browsing Veterinary Epidemiology by Author "Abdella, Mehammed(PhD)"

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    Epidemiology and Economic Importance of Fasciolosis of Domestic Ruminants in Selecied Sites of Tigray Regional State, Norther" Ethiopia .
    (Addis Ababa University, 2008-06) Legesse, Gebru; Abdella, Mehammed(PhD)
    A cross sectional study was conducted to determine prevalence, assess risk factors associated with fasciolosis and evaluate economic los'>e'> in f()ur selected areas or Tigray Regional State. during September 2007 to May 2()()~ A total of 1736 domestic ruminants comprising of 1015 cattle, 526 sheep, 167 goats and 28 camel were subjected to coprological investigation and 236 slaugrltered animals were included for post mortem survey. Based on coprological investigation the ovt-;-ull prevalence uf fasciolo~is was 25.3%" 35.7%, II A'Yo an':l 3.6% in cattle, sheep, goats and camels, respectively. In the slaughterhouses survey the prevalence of fasciolosis was 33.1 %. 37.2%, and 17.6% in cattle, sheep and goats. respectively. I ligh prevalence was recorded in sheep (37.2%) and lowest in goats (17.6%). Statistical significant differences was observed in prevalence among the species (p<0.05) using coproscopy. Fasciola hepatica was dominant in the highlands while the dominant species in the midland and lowland was F gigantica Differences in agroecology, season, body condition and age \vere shown to have associations with prevalence while no significant association was obse[\·ed between sexes of animals. Species of animals. season, age and agro-ecology were knov.n to be among important risk factors associated with fasciolosis. The direct and indirect economic loss incurred due to fasciolosis in the study area \\as estimated to be 268,536.21 Ethiopian Birr. Out of the total incurred losses, 86.3% \vas in cattle. The present study revealed that infection of domestic ruminants by Fasciola species 'Aas attributed by the presence of favorable em·ironment for the abundance of intermediate host and the parasite, hence requiring immediate strategic intervention against the disease. Key words: Ruminants, Epidemiology, Preyalence. Fasciola species, Coproscopy. \