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Associate Professor, Department of Public Health, Pharmacology and Toxicology, Faculty of Veterinary Medicine, University of Nairobi.

Duties: Teaching both Veterinary Public Health to both undergraduate and postgraduate students, supervision of postgraduate students, research and consultancy in various areas of Veterinary Public Health and administrative duties that may be allocated to me.



Nyakundi, JO, Ombui JN, Wanyonyi WC, Mulaa FJ.  2022.   Recovery of industrially useful hair and fat from enzymatic unhairing of goatskins during leather processing.. Journal of American Leather Chemists Association,. 117(6):241-250.
Mutuku, M, Ombui JN, Onyuka A.  2022.   Assessment of Coffee Pulp as a Potential Source of Tannins for Leather Processing.. Textile & Leather Review;. 5:132-146.


Mwondu, JM, Ombui JN, Kironchi G.  2021.  Development of an eco-friendly and sustainable method of dechroming leather waste. Textile & Leather Review. 4:364-391.


Ochami, EA, Ombui JN, Onono JO, Onduso R, Masaki SK.  2020.  Poultry Farming and Disease Management Practices by Small-Scale Farmers in Kisii County, Kenya. Global Journal of Science Frontier Research,. 20(8):1-8.
Karama, M, Kambuyi K, Beniamino T, Ombui JN, Etter E, Kalake A.  2020.  Occurrence and Antimicrobial Resistance Profiles of Campylobacter jejuni, Campylobacter coli, and Campylobacter upsaliensis in Beef Cattle on Cow–Calf Operations in South Africa. Foodborne Pathogens and Disease,
Nyakundi, JO, Ombui JN, Wanyonyi WC.  2020.  Evaluation of Bacillus cereus Strain 1-p Protease for the Unhairing of Goatskins during Leather Production.. Textile & Leather Review., ,. :1-17.
Mwondu, JM, Ombui JN, Onyuka A.  2020.  A survey of leather waste generation and disposal mode in selected counties in Kenya. Journal of sustainability, Environment and peace. 3(1):8-14.
Obiero, DK, Ombui JN, Onyuka AS, Sasia AA.  2020.  Evaluation of the physical properties of leathers tanned with plectranthus barbatus Andrewa extract... African Journal of Biotechnology. 19(3):137-143.


Onduso, R, Onono JO, Ombui JN.  2019.  Assessment of structure and performance of cattle markets in Western Kenya.. Tropical Animal Health and Production. Https:// 52(2):725-732.
Karama, M, Beniamino T, Prosperi AC, Etter E, El-Ashram S, Ombui JN, McCrindle C, Karake A.  2019.  Prevalence and risk factors associated with campylobacter spp occurrence in healthy dogs visiting four rural community veterinary clinics in South Africa.. Ondersport Journal of Veterinary Research,. 86(1):a1673.
Ngotho-Esilaba, Onono J.O, Ombui J.N., J.F L, H.O W.  2019.  Perceptions of Challenges Facing Pastoral Small Ruminant Production in a Changing Climate in Kenya.. Springer, Cham.


Mageto, LM, Ombui JN, Mutua FK.  2018.  Prevalence and risk factors for campylobacter infection of chicken in peri-urban areas of Nairobi, Kenya.. J. Dairy, Veterinary and Animal Research . 7: .(1):22-27..
Muloi D., Pablo A, Ombui JN., Ngeiywa JK., Abdullahi B, Muinde, P, Karani MK., Jonathan R, Fevre E.  2018.  Value chain analysis and sanitary risks of the camel milk system supplying Nairobi city, Kenya. Prev. Vet. Med.. 159: 203-210:203-210.


Njue, LG, Ombui JN, Kanja LW, Gathumbi JK, Midiwo JO.  2017.  Identification of antimicrobial compounds in garlic grown in Laikipia county.. Journal of Agricultural research and review,. 5(5):636-643.
Ondieki, GK, Ombui JN, Obonyo M, Gura Z, Gikunju JK.  2017.  Antimicrobial residues and compositional quality of informally marketed raw cow milk, Lamu West Sub-County, Kenya. The Pan African Medical Journal.. 28(1):5-10.
Njue, LG, Ombui JN, Kanja LK, Gathumbi JK.  2017.  Assessment of effectiveness of garlic extract from Laikipia County on shelf life of meat. Journal of Agricultural Economics, Extension and Rural Development. 5(5):632-641.


Kipronoh, AK, Kiara HK, Binepal YS, Ombui JN.  2016.  Pastoralists perception of constraints affecting goat production in Rift Valley Region of Kenya.. Livestock Research for Rural Development. 28(3)
Kipronoh, AK, Ombui JN, Binepal YS, Wesonga HO, Gitonga EK, Kiara HK.  2016.  Risk factors associated with contagious caprine pleuropneumonia in goats in pastoral areas in Rift Valley region of Kenya.. Preventive Veterinary Medicine . 132:107-112.
Kuria, A, Ombui JN, Onyuka A.  2016.  Tannin analysis of selected plants from Laikipia County, Kenya. . Journal of the Society for Leather Technologists and Chemists. 100:73-76.
Kuria, A, Ombui JN, Onyuka A.  2016.  Quality evaluation of leathers produced by selected vegetable tanning materials from Laikipia County, Kenya.. IOSR Journal of Agriculture and Veterinary Sciences,. o(4):13-17.
Ngugi, A, Ombui JN, Gathuma JM.  2016.  Evaluation of Economic losses from the hides and skins subsector in Wajir County, Kenya. Journal of Agriculture and Veterinary Science. 9(7):41-44.


Sirma, A, Ouko J, Gatwiri M, Mburugu C, Mapenay I, Ombui JN, H Korhonen, Kang'the EK.  2015.  Prevalence of Aflatoxin contamination in cereals in Nandi County, Kenya. International journal of Agricultural Sciences and Veterinary Medicine. 3(3):55-63.
Kipronoh, AK, Ombui JN, Kiara HK, Binepal YS, Wesonga HO, Gitonga EK.  2015.  Prevalence of contagious caprine -pneumonia in pastoral flocks of goats in the rift valley region of Kenya. Tropical Animal Health and Production. 48(1):151-155.


Ombui, JN, Mogoa GE, Matete GA.  2014.  Assessment of performance and competitiveness of Somaliland livestock sector using value chain analysis.. Journal of Agricultural Science and Veterinary Medicine,. 2(1):1-17.
Njue, L, Kanja LW, Ombui JN, Nduhiu JG, Obiero D.  2014.  Efficacy of antimicrobial activity of garlic extract on bacterial pathogens commonly found to contaminate meat.. East African Medical Journal. 91(12):442.abstract.pdf


Massimo, C, Wamalwa K, Njue S, Gathuma JM, Ombui JN, Ogara WO.  2013.  Opportunities and challenges of setting up an articulate HACCP system in export slaughterhouses in countries emerging from Conflicts: An appraisal of North Western Somalia. Food and Nutrition Sciences,. 4:126-130.


Gakuya, F, Ombui JN, Jorg H, Maingi N, Muchemi GM, Ogara WO, Mijele D, Samer A.  2012.  Knowledge of mange among Maasai pastoralists in Kenya. PLOS One. 7(8):1-7.
Wamalwa, K, Castiello M, Ombui JN, Gathuma JM.  2012.  Capacity Building: Benchmark for production of meat with low levels of bacterial contamination in local slaughterhouses in Somaliland. . Tropical Animal Health and Production. 44(3):427-433.
Gakuya, F, Ombui JN, Maingi N, Muchemi GM, Ogara WO, Samer A.  2012.  Sarcoptic Mange and Cheetah conservation in Masai Mara Kenya: Epidemiological Study in Wildlife/livestock system. Parasitology,. 139(12):1587-1595.
Wamalwa, K, Castiello M, Muchina SJM, Abdullahi RG, Gathuma JM, Ombui JN, Mogoa EM.  2012.  Commercialization of meat trade: the potential role of private sector and capacity building in quality assurance in meat export trade from regions of Somalia. International Research Journal of Microbiology. 3(3):86-93.
Gathogo S. M, Kuria JN and Ombui, JN.  2012.  Prevalence of bovine tuberculosis in slaughter cattle in Kenya: A post-mortem microbiological and DNA molecular study. Tropical Animal Health and Production. Tropical Animal Health and Production. 44:1739-1744.


Maloba, F, Kagira JM, Gitau G, Ombui JN, Hau J, Ngotho M.  2011.  Astrocytosis as a biomarker for late stage human African Trypanosomiasis in the vervet monkey model.. Scientia Parasitologica . 12(2):53-59.
Gakuya, F, Rossi L, Ombui JN, Maingi N, Ogara WO, Soriguer RC, Samer A.  2011.  The curse of the prey: Sarcoptes mite molecular analysis reveals potential prey-to-predator parasitic infestation in wild animals from Masai Mara, Kenya. Parasites and Vectors. 4:193-200.


Kikuvi, GM, Ombui JN, Mitema ES.  2010.  Serotypes and antimicrobial resistance profiles of Salmonella isolates from pigs at slaughter in Kenya.. J. Infect. Dev. Ctries, . 4(4):243-248.


Nduhiu, JG, Ombui JN, Nduati DW.  2009.  Genetic characterization of food borne Bacillus cereus strains from milk, cheese and rice by multiplex PCR assay. .. International Journal of Integrative Biology. 5(2):82-86.: University of Nairobi PressWebsite


Kikuvi, GM, Ombui JN, Mitema ES, Schwartz S, Kehrenberg C.  2008.  Genetic basis, transferability and linkage of streptomycin and sulphonamide resistance genes in Escherichia coli from foods of animal origin in Kenya. Bulletin of Animal health and Production in Afriica,. 56(1):56-66.
Ombui, JN, Gitahi JN, Gicheru MM.  2008.  Direct detection of Bacillus cereus enterotoxin genes in food by multiplex polymerase chain reaction,. International Journal of integrative Biology. 2(3):172-181.


Kikuvi, GM, Ombui JN, Mitema ES, Schwartz S.  2007.  Antimicrobial resistance of salmonella serotypes isolated from slaughter animals in Kenya. East African Medical Journal. 84(5):233-239.
Kikuvi, GM, Schwartz S, Ombui JN, Mitema ES, Kehrenberg C.  2007.  Streptomycin and chloramphenicol resistance genes in Escherichia coli isolates from cattle, pigs, and chicken in Kenya. Microbial Drug Resistance. 13(1):62-68.

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