Bio

PROF. NJENGA MUNENE JOHN

Prof. Njenga Munene John is an Associate Professor in Clinical veterinary Medicine specialized in clinical protozoology. He is the immediate past dean Faculty of Veterinary Medicine University of Nairobi and currently deputy Vice-Chancellor Egerton University. He has over 28 years experience in Practical clinical practice and research and has published and presented in conferences over 40 publications. He has wide experience in collaborative research and global partnerships. currently. He is supervising 3 PhD students in areas of Clinical Veterinary Medicine.

Publications


2010

Wesonga, FD;, Kitala PM;, Gathuma JM;, Njenga MJ;, Ngumi PN.  2010.  An assessment of tick-borne diseases constraints to livestock production in a smallholder livestock production system in Machakos District, Kenya. Abstract

The principle objective of the study was to determine the tick- borne diseases constraints to livestock production in Machakos District. The survey was carried out in eight randomly selected sub- locations spread across the district. Two hundred farmers were recruited into the study. All cattle from the selected farms were bled to determine the prevalence of tick- borne diseases. Clinical examination of sick animals was carried out during the survey. Questionnaires with questions designed to identify and rank various tick- borne disease production constraints, occurrence of tick- borne diseases, mortality and disease control strategies were administered. A total of 634 zebu and 15 cross- breed (Friesian-zebu crosses) cattle were sampled on the 200 farms for blood parasite infections (serology and direct parasite detection) and tick infestation. From the farmers’ perceptive, East Coast fever (ECF) and anaplasma were ranked as the main tick -borne diseases prevalent in the district. Although babesia was not ranked as one of the main tick-borne diseases in the district by the farmers, serological analysis did indicate a high prevalence of the disease. Tick challenge was high in seven of the eight sub-locations where the survey was carried out. The most common tick species were Rhipicephalus appendiculatus, Amblyomma variegatum, Rhipicephalus evertsi, Rhipicephalus pulchellus and Boophilus decoloratus. Veterinary services in the district are inadequate with up to 92 % of the farmers in one of the sub-locations treating their sick animals without the assistance of qualified veterinary personnel.

2006

Wabacha, J;K, Mulei C m m;, Gitonga NP;, Njenga MJ;, Thaiyah AG;, Nduhiu J.  2006.  An outbreak of unusual form of acute ovine dermatophilosis in a mixed farming enterprise in Kenya..

2005

JOHN, PROFNJENGAMUNENE.  2005.  T.A. NGATIA, NJENGA .M.J., P.G. MBUTHIA, AND H.C.W. MBUGUA.OCCURRENCE AND PATHOLOGY OF CAPRINE ARTHRITIS . Africa-Caribbean Institute. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1
JOHN, PROFNJENGAMUNENE.  2005.  T. A. Ngatia; M. J. Njenga, PG Mbuthia, and HCW Mbugua (2005). Occurrence and pathology of caprine arthritis-encephalitis in young goats in Kenya. Bulletin of Animal Health and Production In Africa 53:77-83. Africa-Caribbean Institute. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1 Abstract
Normal 0 false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Products of gene modification have vast implications. Creating public awareness and disseminating information on the subject seeks to demystify some of the widely held falsehoods regarding genetically modified products. This is an informative, thorough and easy to understand guidebook that aims to enlighten and debunk some of the commonly held misconceptions on products of gene modification and to give the reader a better understanding of the role genetic modification will play. The review sheds light on the safety, and application of these products in medicine, the food industry and other areas, especially those where genetic modification may represent a cheap, faster, credible, viable alternative in achieving sustainable development among resource-poor communities.

2004

Njenga, MJ;, Wabacha JK;, Ndurumo SM;, Gitonga PN;, Kirui G.  2004.  Ambulatory clinical exposure of final year veterinary students 2003/2004..
JOHN, PROFNJENGAMUNENE.  2004.  J. M. Njenga and V.Tsuma.Sudden death following rupture of the middle uterine artery, in a bovine dystocia.In The Kenya Veterinarian Vol 26(2004): 27-28. Africa-Caribbean Institute. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1 Abstract
A case of dystocia resulting in rupture of he middle uterine artery and subsequent death in a cow is reported
JOHN, PROFNJENGAMUNENE.  2004.  J.M Njenga and V.T Tsuma (2004).Sudden death following rupture of the middle uterine artery, in a bovine dystocia. The Kenya Veterinarian 26: 27-28.. Africa-Caribbean Institute. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1

2002

Njenga, M;, Wahome RG.  2002.  Napier grass production and Silage Making. Website

2000

Ellis, JT, Holmdahl OJ, Ryce C, Njenga JM, Harper PA, Morrison DA.  2000.  Molecular phylogeny of Besnoitia and the genetic relationships among Besnoitia of cattle, wildebeest and goats. Abstract

Knowledge on parasites of the genus Besnoitia is sparse, which are classified in the subfamily Toxoplasmatinae of the phylum Apicomplexa. This arrangement hypotheses that Besnoitia represents the sister group to species such as Toxoplasma gondii and Hammondia hammondi. In order to test this hypothesis, phylogenetic analyses of 18S ribosomal DNA (rDNA) from Besnoitia, Hammondia, Isospora, Frenkelia, Eimeria, Neospora, Sarcocystis and Toxoplasma were performed. The 18S rDNA of Besnoitia besnoiti, Besnoitia jellisoni and Eimeria alabamensis were amplified by PCR and sequenced. Phylogenetic analyses by parsimony and maximum-likelihood methods showed Besnoitia to be reproducibly the sister group to a clade containing Hammondia, Neospora and Toxoplasma. Furthermore, Besnoitia of cattle, wildebeest and goats had identical ITS1 rDNA sequences, which questions the use of the taxon Besnoitia caprae to describe the Besnoitia found in goats.

JOHN, PROFNJENGAMUNENE, M DRMUNYUASJ.  2000.  S.J.M Munyua .,D.I Karioki, D.M Chibeu, J.K Wabacha, A.G Thaiya J.M Njenga, J.M Gathuma,,and B.Mitaru (2000). Prognostic indicators of post partum viability of kids born of Escherichia coli-vaccinated or unvaccinated does.. Journal of South African Veterinary Association 71 (1): 47-52.. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1 Abstract
A case of dystocia resulting in rupture of he middle uterine artery and subsequent death in a cow is reported

1999

JOHN, PROFNJENGAMUNENE.  1999.  M.J Njenga, S J M Munyua, E R Mutiga, J M Gathuma, E K Kangethe, O.Bwangamoi,G M Mugera and B N Mitaru(1999). Semen characteristics of goats with subacute, acute and chronic besnoitiosis. Journal of South African Veterinary Association(1999) 70(1):14-17.. Journal of South African Veterinary Association 71 (1): 47-52.. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1 Abstract
A case of dystocia resulting in rupture of he middle uterine artery and subsequent death in a cow is reported
JOHN, PROFNJENGAMUNENE.  1999.  M.J Njenga, E K Kangethe, O Bwangamoi, S J M Munyua, G. M Mugera and E R Mutiga(1999). Experimental transmission of Besnoitia caprae in goats. Journal of South African Veterinary Association 70(4) 161-163. Journal of South African Veterinary Association 71 (1): 47-52.. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1 Abstract
A case of dystocia resulting in rupture of he middle uterine artery and subsequent death in a cow is reported
JOHN, PROFNJENGAMUNENE.  1999.  M.J Njenga, S J M Munyua, O Bwangamoi ,E K Kangethe, G M Mugera E R Mutiga and J P O Wamukoya (1999). Prevalence of besnoitiosis in domestic ruminants in Kenya: a preliminary survey. Journal of South African Veterinary Association 70(4): 151-153. Journal of South African Veterinary Association 71 (1): 47-52.. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1 Abstract
A case of dystocia resulting in rupture of he middle uterine artery and subsequent death in a cow is reported
JOHN, PROFNJENGAMUNENE.  1999.  Njenga Munene John., Manuel Eduardo.Rodriguez.Zea., Tomomi Kawano., Yoshitaka Omata , Atsushi Saito, Yukata Toyoda ,Takeshi Mikami (1999). Identification of carbohydrates on Eimeria stiedai sporozoites and their role in the invasion of cultured cells in v. Journal of South African Veterinary Association 71 (1): 47-52.. : ELOQUENT BOOKS NY, Strategic Book Group, Connecticut, USA. ISBN-978-1-60911-081-9.Pages1 Abstract
A case of dystocia resulting in rupture of he middle uterine artery and subsequent death in a cow is reported

1989

Munyua., SJM;, Njenga MJ;, Nguhiu; Karioki D.I. DI.  1989.  Foot And Mouth Disease In Pigs And Its Social Economic Effects..

1987

Munene, J.N; Kariuki, MGWDI; SJ.  1987.  Incidence And Cost Of Mastitis In Kenya.

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