Browsing Theses & Dissertations by Title

Now showing items 1-20 of 698

Acoustic detection of insect pests of stored grains in Kenya

Njoroge, Anastasia Wanjiru (Universität Kassel, 2017)

Grain production by Kenyan farmers, an important resource for their food security, faces constant challenges from pre- and post-harvest conditions favorable to rapid growth of insect populations. Currently, Kenya must ...
Adaptation of Field Strains of Rhipicephalus Appendiculatus, Neumann to Host Resistance to Tick Infestation

Chiera, John Wachira (University of Nairobi, 1986)

The possibility of adaptation to host resistance by field strains of R. appendiculatus was investigated by comparing the feeding and breeding performance of two field strains with a laboratory strain (Muguga) which has ...
Adaptation of Trypanosoma (NANNOMONAS) Congolense broden 1904 types to different hosts and transmission by Glossina species

Masaninga, Freddie (University of Zambia, 2012)

The influence of host bLood on midgut infection, maturation rates in Glossina species, transmission and virulence to mice of Trypanosoma congolense DNA types was investigated. The study was also coiKiucted to identify an ...
Adaptation options of small-scale Farmers to the Climate change impacts in aAgeyo-Setema Area, Jimma Zone, SouthWestern Ethiopia

Teshome, Girma Eshetu (Jimmaa University College of Agriculture, 2015)

Climate change is a key emerging threat to the lives and livelihoods of smallholder farmers in Ethiopia. This study examines small-scale farmer adaptation strategies to climate change and climate variability, and the factors ...
Adsorption of heavy metals from aqueous solutions using mangroves from Kenyan coast

Ngugi, Fidelis (University of Nairobi, 2015)

In this study, adsorption of heavy metals (copper, lead, zinc and cadmium) from aqueous solutions was investigated using mangrove biomass from the Kenyan Coast. The efficacy of mangrove biomass on the removal of divalent ...
Agro-ecosystems’ resilience to damage: determination of index of susceptibility to climate change in mount kilimanjaro, Tanzania.

Kelvine, Shirima (University of Dar es Salaam, 2014)

This paper assesses maize-coffee-banana agro-ecosystems’ resilience to damage as well as computing the social-ecological vulnerability index to climate change on the southern slope of Mount Kilimanjaro in Tanzania. The ...
Allelochemicals from sorghum bicolor that stimulate feeding by the larvae of the stem borer chilo partellus

Torto, Baldwyn (Department of Chemistry University of Ghana LEGON, 1988-08)

Feeding bioassays with cellulose acetate discs impregnated with the hexane, ethyl acetate and methanol extracts of the leaf-whorls of field grown plants of sorghum cultivars IS 18363 (susceptible) and IS 2205 {LdSistant) ...
Allelochemicals from Sorghumm Bicolor that stimulate feeding by the Larvae of the stem borer Chilo partellus

Torto, Baldwyn (University of Ghana, 1988)

Feeding bioassays with cellulose acetate discs impregnated with the hexane, ethyl acetate and methanol extracts of the leaf-whorls of field grown plants of sorghum cultivars IS 18363 (susceptible) and IS 2205 {LdSistant) ...
Analysing the Role of Semiochemicals in the Oviposition Substrate Choices of the Malaria Vector Mosquito Anopheles Gambiae Sensu Lato

Okal, Michael Nyang’anga (London School of Hygiene and Tropical Medicine, 2015)

The search for tools that target malaria vector that resist insecticides and bite outdoors has become a research priority. Such tools will be necessary for managing residual malaria transmission and hastening the eradication ...
An Analysis factors influencing demand for poultry and fish feeds in Kenya

Macharia, John Njenga (University of Nairobi, 2017)

Poultry and fish are important sub-sectors in Kenya providing rural farmer households with income and contributing to their food and nutritional security. Although ownership of these enterprises is not gender specific women ...
Analysis of Chemical Composition of Cowpea Floral Volatiles and Nectar

Ager, Atieno Consolata (Kenyatta University, 2009)

Cowpea is one of the 14 species of grain legumes. It rewards insects by producing nectar and it advertises to the pollinators by producing floral volatiles. The volatiles act as cues that guide insect pollinators in terms ...
Analysis of farmers’ adoption of zero grazing and knowledge of cattle reproductive parameters in western Kenya

Nalunkuuma, Justine (Jomo Kenyatta University of Agriculture and Technology, 2013)

Besides soil replenishment through manure application , the zero grazing production system also contributes towards smallholders' standards of living and poverty reduction. Its benefits are many and substantial; in western ...
Analysis of Metabolite Compounds in Ruminants and their Contribution to Greenhouse Gas Emission

Omondi, Victor Ochieng (The University of Nairobi, 2019)

Ruminants such as cattle, goats, sheep, and camels host highly diverse microbial communities in their rumens that ferment fibrous plant materials to produce energy. However, this fermentation process also generates significant ...
Analysis of Microbial Load and Diversity in Crickets (Gryllus Bimaculatus and Scapsipedus icipe) used as a source of protein for food

Gatheru, Jedida Wanjiru (Kenyatta University, 2019)

Crickets are drawing interest as sustainable source of protein for food and feed worldwide. However, there is little information on microbial quality of edible crickets thus the need for a profound insight into their ...
Analysis of the Biology, Population Dynamics, Natural Enemies and Impact of the Groundnut Leaf Miner, Aproaerema modicella (Deventer) (I..epidoptera:Gelechiidae), on Groundnut in India

Shanover, Thomas Gibbs (university of illinois, urbana, 1989)

The groundnut leaf miner (GLM), Aproaerema modicella (Deventer)(Lepidoptera: Gelechiidae) is a serious pest of groundnut and soybean throughout South Asia . Laboratory and field experiments were conducted over a two year ...
Analysis of tsetse fly (diptera: glossinidae) blood meals using mitochondrial cytochrome genes for vertebrate host identification

Nyawira, Ngambi Catherine (Egerton University, 2009)

Information on the vertebrate hosts of blood feeding vectors forms a useful decision-making tool in the planning of tsetse fly control and eradication operations. The objective of this study was to investigate the utility ...
Anopheles larval productivity and diversity in Mwea irrigation scheme, Kirinyaga district, kenya

Mwangangi, Joseph Mumo (Kenyatta University, 2006)

The use of irrigation to flood agricultural land during rice cultivation has over the years been associated with an increase in the number of disease vectors and corresponding increase in health burden due to malaria and ...
Anti Mosquito Terpenoids and other Constituents of selected Tanzanian plants

Innocent, Ester (University of Dar Es Salaam, 2007)

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Anti-larval compounds from Vitex schiliebenii and Vitex payose

Mokua, Gladys (Kenyatta University, 2008)

Over two billion people in tropical countries are at risk from mosquito-borne diseases such as dengue fever, hemorrhagic fever, malaria and filariasis. The search for effective vaccines against these diseases is still in ...
Anti-Tick Properties of Selected East African Plants against the Brown Ear Tick Rhipicephalus Appendiculatus Neuman and Identification of some of their Secondary Compounds

Bakari, Salim Kiondo Kaoneka (Moi University, 1998)

Hexane, ethyl acetate and methanol extracts of Commiphora swynertonii Burtt., Turraea cormicopia (L), T abyssinica, T. floribunda and Melia volkensii Gurke were tested for anti-tick activity against the larvae and adult ...

Now showing items 1-20 of 698

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