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A cross-sectional study was conducted on organized Dairy Farm at Asella, Oromia Regional State of Ethiopia to determine seroprevalence and risk analysis of bovine brucellosis in May, 2016. A total of 304 samples were collected; all were tested and confirmed serologically using Rose Bengal plate test (RBPT) and complement fixation test (CFT). Out of 304 samples tested, overall seroprevalence of RBPT and CFT results was12.48% (38) and 9.87% (30) respectively, which was higher in animals above two years age than younger one. History of abortion and retained fetal membrane were found to be significantly (p 0.05) was observed between cross and local dairy cattle. The result showed the high prevalence of bovine brucellosis in the farm. Hence, culling of the positive dairy cattle and practicing good management should result in a control and prevent of the brucellosis. Key words: Asella, brucellosis, dairy cattle, seroprevalence, risk factors.

A cross sectional study was conducted to assess the prevalence and economic significance of bovine hydatidosis at Adama municipal abattoir. A total of 500 cattle were examined and 191 (38.2%) of them were found infected. Also, 253 visceral organs were found harboring one or more hydatid cyst. Prevalence of lung and liver cyst accounted for 94.5% and the involvement of other organs as many as 20 cysts were recovered from a single lung. Proportionally 35.7, 34.6, 20.8 and 8.82% of the cysts were calcified, small, medium and large sized, respectively. In addition, sterile and fertile cysts represent 46.2 and 18.1%, respectively. The rate of calcification is higher in liver than lungs, while that of most fertile cysts were recovered from lungs. The annual economic loss due to bovine hydatidosis at Adama abattoir is estimated to be about 171,436.36 Eth Birr (ETB). This information shows the risk of hydatid cyst distribution and economic significance in the study area. Therefore, appropriate control measures should be undertaken which include public awareness education program and a more aggressive effort that should include a reduction of stray dog population. Key words: Adama abattoir, economic significance, hydatid cyst, fertility, prevalence.

A cross-sectional study was conducted in Guna district, Arsi zone, South East Ethiopia, from November, 2013 to March, 2014 to determine the prevalence, associated risk factors and identification of species of ovine lungworm by using coproscopic examination and questionnaire survey. A total 384 faecal samples from randomly selected sheep of different age groups, body conditions, sexes and PAs with various altitudes. The finding indicated that 217 (56.5%) were infected with different species of lungworm, namely, Dictyocaulus filaria (28.4%), Muellerius capillaries (10.7%), Protostrongylus rufescens (7.6%), and mixed infection (9.9%). There were statistically significant difference (p 1 year 51.0%) and PAs (Cire Anole 78.1%, Nano Hecho 52.1% and Re’e Amba 39.1%); however, sexes (female 59.9% and male 53.1%) and body conditions (poor 60.9%, medium 57.0%, and good 51.6%) were insignificant (p>0.05). Parallely, questionnaire surveys on history of antihelmintic usage, manifestation of respiratory signs, and place where animal kept were undertaken on the same animals that were sampled for coproscopic examination. Accordingly, the prevalence of lungworm infection with antihelmintic usage (none dewormed 67.5% and dewormed 44.6%), manifestation of respiratory sign (No 44.1% and yes 68.2%), and place where animal kept (forest area 38.1% and swampy 67.9%) and statistically all considered factors for questionnaire survey are highly significant (p=0.000). As conclusion, our work revealed that lungworm belongs to the major respiratory helminthes that affect the health and productivity of sheep in the study area; therefore, attention should be given for the control and prevention to reduce the current high prevalence. Key words: Arsi, Ethiopia, Guna, lungworm, ovine, prevalence.

This study was conducted from November 2011 to April 2012 in the East Showa Zone, Oromia Regional State, Central Ethiopia in four selected study area to investigate the prevalence, burden of helminths, and to asses associated risk factors. A total of 326 fecal samples were used for qualitative and quantitative coprological examination. The overall prevalence was 61% of gastrointestinal (GI) helminths and the prevalent helminthes eggs identified were Strongyle type egg (41%), Fasciola (36.5%), Paraphostomum (18.4%), Toxocara (7.7%), Trichuris (5.2%), and Monezia (2.8%). This result indicated the highest prevalence of Strongyle type eggs than other helminths egg and the lowest prevalence of Monezia egg. Out of 61% of infected animals 9.5% of prevalence was recorded in an animal having history of anthelmintic treatment while the rest 51.5% was recorded in the animal having no history of anthelmintic treatment. The 30.9% of animals were found to be infected with more than one helminths parasite. There was higher mean eggs per gram (EPG) in animals >7 years of age group, followed by animals