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Epidemiology of small ruminants lungworm in Gedeb Asasa district, West Arsi zone, Ethiopia

Wossene Negash, Tekalign Tadesse, Gezahegn Alemayehu, Hailegebrael Bedada


A cross-sectional study was carried out in Gedeb Asasa district of West Arsi zone, Ethiopia from November 2016 to April 2017 to identify and determine prevalence of small ruminant lungworm species and assess potential risk factors. A total of 400 fecal samples were randomly collected from 288 sheep and 112 goats in the study area and collected samples were cultured and first stage larvae (L1) were isolated using modified Baerman technique. Isolated first stage larvae (L1) were examined and identified morphologically using microscope. The present study recorded an overall prevalence of 44.8%. The prevalence of lungworm infection by animal species was determined to be (45.5%) and (42.9%) for sheep and goat, respectively. The study identified three lungworm nematode species of small ruminants: Dictyocaulus filaria, Muelleris capillaris, Protostronylus rufescens along with mixed infection by coprological larval morphology identification system with respective prevalence of 17%, 14.5%, 5.3% and 8% applying descriptive statistics. Statistically, higher lungworm infection rate in female (48.8%) recorded compared to male (37.5%), in young (53.3%) compared to adult (36.3%) in animals with poor body condition (66.9%) followed by medium (37.5%) and good body condition (31.9%) animals and non- dewormed animals (49.2%) compared to dewormed ones (37.2%).  To determine the existence of association between the disease and risk factors (sex, animal origin, animal species, age, body condition, anthelmintic treatment), Chi-Square statistics was employed and only four (sex, age, body condition, anthelmintic treatment) were found to have association with the disease. Multivariate logistic regression analysis confirmed the existence of statistically significant impact (P<0.005) of the four factors (sex, age, body condition, anthelmintic treatment) on small ruminants lungworm infection dynamics.


Abdella, S., Abdela, A., Abduselam, A., Daniel, B., Fikre, N., Beshatu, F., Lama, Y., 2016. Prevalence of ovine lung worms in Munesa district, East Arsi, Ethiopia. Sc. Pub. Res., 8(7), 1-7.

Abeje, A., Diriba, L., Ketema, B., Gezahegn, A., 2016. Small ruminants lungworms infection in highlands of Bale and Arsi zone, Southeastern Ethiopia. Glob. Vet., 17(4), 353-357.

Addis, M., Fromsa, A., Ebuy, Y., 2011. Study on the prevalence of lungworm infection in small ruminants in Gondar town, Ethiopia. J. Anim. Vet. Adv., 10, 1683-1687.

Adugna, M., Afera, B., Berhe, N., 2014. Prevalence of ovine lungworms in and around Wukro, Tigray region, Ethiopia. Glob. Vet., 12(4), 474-478.

Alemayehu, R., Mohammed, T., Rahmeto, A., Fufa, A., 2010. Lungworm infection in small ruminants: Prevalence and associated risk factors in Dessie and Kombolcha districts, Northeastern Ethiopia. Vet. Paras., 169, 144-48.

Alemu, S., Leykun, E., Ayelet, G., Zeleke, A., 2006. Study on small ruminant lungworms in Northeastern Ethiopia. Vet. Parasitol., 142, 330-335.

Anne, M., Gray, A., 2006. Veterinary clinical parasitology. 7th ed. Australia, Blackwell Publishing Company, 11-14.

Asaye, M., Alemneh, T., 2015. Prevalence of lungworm infection of small ruminants in and around Bahir Dar city, Amhara regional state, Ethiopia. J. Vet. Sc. Tech., 12-002.

Berhanu, A., 2002. Welcome address: Animal health and poverty reduction strategies. In proceedings of the 16th Annual Conference of the Ethiopian Veterinary Association (EVA) held 5-6 June, Ghion Hotel, Addis Ababa, Ethiopia, 117-137.

Cabaret, J., Antoine, T., 2009. Cattle nematodes resistant to anthelmintics. Vet. Res., (33), 481-189.

Conboy, A., 2006. Veterinary clinical parasitology. 7th ed. USA: Black Well Publishing Company, (2), 12-13.

Crawing, T., 1998. Epidemiology of internal parasite, effect of climate and host on reproductive cycle in parasite survival. In small ruminants for the mixed animal practitioner. West Vet. Conf., Las Vegas, Nevada.

CSA, 2013. Agricultural Sample Survey, (2005 E.C.), Vol. II: Report on livestock and livestock characteristics (Private peasant holdings). Statistical Bulletin-570. Addis Ababa: Central Statistical Agency (CSA), Federal Democratic Republic of Ethiopia.

CSAGAW, 2013. Central Statistical Agency of Gedeb Asasa Woreda.

Dawit, W., Abdu, M., 2012. Prevalence of small ruminant lungworm infection in Jimma town. Glob. Vet., 8(2), 153-159.

Desta, B., Sisay, N., Dinka, A., Fufa, A., 2013. The prevalence of lungworms in naturally infected sheep of Ambo district, Oromia, Ethiopia. Glob. Vet., 10(1), 93-98.

Eyob, E., Matios, L., 2013. The prevalence and risk factors associated with ovine lungworm infestation in the Asella province, central Ethiopia. J. Para. Vet. Bio., 5, 116-121.

Fentahun, T., Seifu, Y., Chanie, M., Moges, N., 2012. Prevalence of lungworm infection in small ruminants in and around Jimma town, Southwest Ethiopia. Glob. Vet., 9(5), 580-585.

Gebreyohannes, M., Alemu, T., Kebede, E., 2013. Prevalence of ovine lungworms in Mekedella Woreda, Ethiopia. J. Anim. Prod. Adv., 3(6), 208-214.

Getachew, G., Melese, T., Nasibu, A., 2015. Prevalence of ovine lungworm in Banja district, Awi zone, Northwest Ethiopia. Act. Par. Glob., 6(1), 08-13, 201.

Girisgin, O., Senlik, B., Akyol, V., 2008. Studies on sheep lungworms in Bursa province of Turkey: Determination of prevalence and relationships between larval output and parasite burden in the lungs. Pak. J. Zool., 40, 365-369.

Girma, A., Alemu, Y., 2008. Chapter four. Sheep and goat management. Alemu, Y., Markel, R.C., Sheep and goat production handbook in Ethiopia. Sheep and Goat Productivity Improvement Program, 34-56.

Hansen, J., Perry, B., 1994. The epidemiology, diagnosis and control of Helminthes parasite of ruminants, Nairobi, Kenya. 38.

Hansen, J., Perry, B., 1996. The epidemiology, diagnosis and control of Helminthes parasites of ruminants, Nairobi, Kenya. 29-31.

Hubado, H., Seifudin, K., Sisay, S., Mukarim, A., 2017. Prevalence of lungworm infection of small ruminants in Assela and its surroundings, Jimma town, Ethiopia. IISTE J. Nat. Sc. Res., 7, 1-8.

Muhammed, H., Alebachew, T., Ayichew, T., Destaw, E., 2016. Study on lungworm and associated risk factors of small ruminants in Hitosa Woreda, Ethiopia. Glob. Vet., 17(4), 303-309.

Nemat, E., Moghadam, G., 2010. A survey on annual infestation of sheep with lungworms based on fecal test and slaughter house study in Tabriz. J. Vet. Res., 64, 339-342.

Netsanet, B., 1992. Study on the prevalence and control of lungworms (Dictycaulus and Meullerius) in local Ethiopian highland sheep in and around Debre Birhan. DVM Thesis, Addis Ababa University, Debrezeit, Ethiopia. 1-32.

Nibret, M., Basaznew, B., Mersha, C., 2011. Dictyocaulus filarial and Muellerius capillaris are important lungworm parasites of sheep in Wogera district, Northern Ethiopia. Int. J. Anim. Vet. Adv., 3(6), 465-468.

Nicholson, M., Butterworth, T., 1996. A guide to body condition score in Zebu cattle. International livestock center for Africa, Addis Abeba, Ethiopia. 78-91.

Nuraddis, I., Yared, D., 2012. Prevalence of ovine lungworm infection in Mekelle town, Orth Ethiopia. J. Vet. Med. 9

Radostits, O., Gay, C., Hinchcliff, K., Von-Stable, P., 2007. Veterinary medicine. A text book of the disease of cattle, horses, sheep, pigs and goats. 10th ed. London: Saunders Elsevier, 1007-1016.

Serkalem, K., Sissay, M., Mulugeta, D., 2014. On farm and abattoir study of lungworm infection of small ruminants in selected areas of Dale district, Southern Ethiopia. Int. J. Curr. Microbiol. App. Sci., 3(4), 1139-1152.

Shumye, F., Rahmeto, A., Samrawit, M., Mulat, A., 2016. Study on lungworm infection in small ruminant prevalence and risk factors in and around Gondar town, Northwest, Ethiopia. Int. J. Vet. Sc. Husb., 1(2), 47-52.

Sileshi, Z., Lidetu, D., 2003. Control of internal parasites in sheep and goats. In: Technical bulletin No. 3 control of internal parasites in sheep and goats (Eds.)

Sissay, M., Waller, P., 2007. Epidemiology and seasonal dynamics of gastrointestinal nematode infections of sheep in a semi-arid region of eastern Ethiopia. Vet. Parasitol., 143, 311-321.

Sissay, A., 1996. Preliminary study on the prevalence of ovine lungworm infection in and around Bahir Dar. DVM thesis, faculty of veterinary medicine, Addis Ababa, Debre Zeit, Ethiopia. 1-36.

Soulsby, L., 1982. Helminthes, arthropods and protozoa of domesticated animals. 6th Ed. Bailliare Tindal, London. 492p.

Taylor, M., Coop, R., Wall, R., 2007. Veterinary parasitology. 3rd Edn. Blackwell Publishing Ltd.

Teklye, B., 1991. Epidemiology of endoparasites of small ruminants in Sub-saharan Africa. Proceedings of Fourth National Livestock Improvement Conference. Addis Ababa, Ethiopia. 13-15.

Tewodros, A., 2015. A review on: Lungworm infection in small ruminants. World J. Pharm. Life Sc., 1(3), 149-15.

Tewodros, F., Yeshiwas, S., Mersha, C., Nibret, M., 2012. Prevalence of lungworm infection in small ruminants in and around Jimma town, Southwest Ethiopia. Glob. Vet., 9(5), 580-585.

Tewodrose, A., 2010. Prevalence of lungworm infection of small ruminants in and around Bahir Dar. DVM Thesis, Gondar University, Gondar, Ethiopia. 1-35.

The Merck Veterinary Manual, 2011. Lungworm infection: Introduction (Verminous Bronchitis Verminous Pneumonia). Merck Sharp and Dohme Corp, a Subsidiary of Merck and Co. Inc. Whitehouse Station, NJ USA.

Thomson, R., 2008. Special veterinary pathology, B.C. Decker. Inc. Toronto Philadelphia, 112-113.

Thrusfield, M., 2005. Veterinary epidemiology. 3rd ed. UK Blackwell Sc., 610.

Tigist, B., 2009. Prevalence of lungworm infection in small ruminants in North and South Gondar zones. DVM Thesis, University of Gondar, Gondar, Ethiopia.

Urquhart, G., Armour, Duncan, J., Jennings, J., Hiuls, F., 1994. Veterinary parasitological, Glasgow, Scotland, 395p.

Van Wyk, J., Cabaret, L., Michael, L., 2004. Morphological identification of nematodes of small ruminants and cattle. Vet. Parasitol., 119, 227-306.

Weldesenebet, D., Mohamed, A., 2012. Prevalence of small ruminant lungworm infection in Jimma town. Glob. Vet., 8, 153-159.

Wondwossen, T., 1992. Prevalence of lungworm in and around Asella. DVM Thesis, Faculty of Veterinary Medicine, Addis Ababa University Debre Zeit. 1-38.

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