PhD Theses and Dissertations [LiSBE]: Recent submissions
Now showing items 61-80 of 92
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Characterization of aeromonads and development of vaccine candidate from aeromonas hydrophila isolated from tilapia fish farms in Tanzania
(NM-AIST, 2020-06)Tanzania produces less than half of the country annual demand in fish. Therefore, there is an urgent need to produce more fish, particularly through fish farming. However, aeromonads infections cause major lose in ... -
Characterization and management of bacterial wiltcausing pathogen(s) of tomato in Tanzania
(NM-AIST, 2020-04)Bacterial wilt disease (BWD), caused by Ralstonia solanacearum (Smith) is one of the most destructive tomato diseases globally. A research was carried out from 2017 to 2019 to assess the incidence and severity of tomato ... -
Assessing the potentials of agricultural ecosystem pollination services to improve bean yield in smallholder farming systems
(2020-04)Pollination services by insects contribute to production in 75% of food crop species. When promoted through agro-ecological intensification (AEI), pollination can narrow yield gaps in smallholder farming systems. The ... -
The distribution, control techniques and impact of Parthenium hysterophorus on flower visitors and soil chemical properties in Meru district, Tanzania
(2020-08)In Tanzania, the invasive plant Parthenium hysterophorus threatens natural and semi–natural environments. Little is known about how this species affects plant–pollinator interactions and soil–chemical properties. Roadside ... -
Molecular basis of susceptibility to Newcastle disease virus challenge in exotic and local Tanzanian chicken
(NM-AIST, 2020-04)This research aimed to investigate genetic mechanisms of susceptibility to Newcastle disease virus (NDV) in exotic and local Tanzanian chicken. In the first experiment kuroiler, broiler and local Tanzanian chickens were ... -
Nutrient hotspots for wild grazing ungulates in a miombo ecosystem, western Tanzania
(NM-AIST, 2020-06)While the movement pattern of grazing ungulates is strongly dependent on forage quality whose use of nutrient hotspots has rarely been quantified, especially in miombo ecosystems where soil-nutrient quality is low. Few ... -
Cyanotoxins occurrence in drinking waters and risk of exposure to human in Ukerewe district Mwanza, Tanzania
(2020-04)There is global concern regarding the increase of cyanobacteria and cyanotoxins in freshwater and their potential effects on human health. This study was conducted to determine the occurrence of cyanotoxins and assessed ... -
Effects of tobacco nicotine on maize yield and soil bacteria in Tabora western Tanzania
(NM-AIST, 2020-05)Tobacco (Nicotiana tabacum L.) is globally known to be a primary source of nicotine worldwide. This study was conducted to determine the effects of nicotine on the rhizosphere and subsequent maize crop yield. Pot experiments ... -
Characterizing market potential and developing business model for processed lake Victoria sardine products
(NM-AIST, 2020-01)The study aimed at developing an inclusive business model to improve the marketing efficiency of Lake Victoria processed sardine products. The stakeholder theory was used to characterize actors’ roles while structure, ... -
The potential of anthill soils in smallholder maize production under conservation based agricultural systems in southern Zambia
(NM-AIST, 2020-04)Soil fertility is one of the fundamental challenges faced by cash constrained smallholder farmers across sub-Saharan Africa. In an effort to ward off this hurdle, some smallholder farmers in southern Zambia opt to use ... -
Influence of cattle movement, ecological and risk factors on trypanosome infections of cattle in Simanjiro and Monduli districts, Tanzania
(NM-AIST, 2020-03)African animal trypanosomiasis is a neglected tropical disease with significant impacts on pastoral community livelihoods. This study sought to determine the influence of seasonal cattle movements and risk factors including ... -
Potential predators and parasitoids for conservation biological control in smallholder bean farming tropical ecosystem
(2020-04)Conservation biological control (CBC) is an attempt to protect the already existing natural enemies (predators, parasitoids or pathogens) of insect pests within the agricultural systems by manipulating the environment ... -
Prevalence of hyperglycemia in pregnancy, risk factors and simplified method for identification of pregnant women at risk in Arusha, Tanzania
(NM-AIST, 2020-08)Hyperglycemia in pregnancy is increasing in Tanzania; however, timely diagnosis is limited. This study therefore, aimed to establish the prevalence of hyperglycemia in pregnancy, risk factors and develop a simple method ... -
Biology, predatory activity and peoples’perceptions towards apefly (spalgis spp.) in Tanzania
(2020-05)In June 2017, farmers in central and northern Tanzania reported the occurrence of what they called an unusual insect with a human-like facial appearance that they referred to as “Kidudu-mtu.” The reports prompted the ... -
Epidemiology and impact of foot-and-mouth disease in districts located along the Uganda and Tanzania border
(2020-03)The Uganda-Tanzania border area lies within the main risk areas for foot-and-mouth disease (FMD) circulation. With the introduction of the progressive control pathway for FMD in eastern Africa, reliable information on ... -
Ecology of bulinid snail intermediate hosts and transmission of schistosoma haematobium among school aged children in Shinyanga district, Tanzania
(2020-02)This study investigated transmission of Schistosoma haematobium through longitudinal parasitological, malacological and human water contact surveys. Urine samples collected from school children were examined for S. ... -
Antimalarial, toxicity and phytochemicals evaluation of lippia kituiensis and cucumis metuliferus species found in Tanzania
(NM-AIST, 2020-04)This study aimed at evaluating the antimalarial, toxicity and phytochemical profile of Cucumis metuliferus and Lippia kituiensis used for treatment of malaria in Tanzania. Pulverised plant materials were sequentially ... -
Development of bio-pesticide for management of spodoptera frugiperda (j. e. smith) and other lepidoptera pests of maize in Tanzania
(NM-AIST, 2020-03)This study was conducted to evaluate the infestation levels and develop management option for a Lepidoptera namely fall armyworm (Spodoptera frugiperda J. E. Smith). The survey was carried out in three regions of northern ... -
Evaluation of maize accessions for diversity, yield and tolerance to maize lethal necrosis disease in Tanzania
(NM-AIST, 2017-12)Maize (Zea mays L.) is among the most important crops in Tanzania with still low average yield of 1.2 metric tonnes per hectare as compared with potential yields of 4 to 5 metric tonnes per hectare. Low yield is due to a ... -
Occurrence, seasonal variation and management of tomato leafminer (tuta absoluta meyrick.) in Tanzania
(NM-AIST, 2019-03)Tomato leafminer [Tuta absoluta, Meyrick. (Lepidoptera: Gelechiidae)] is a notorious pest that causes massive losses in Solanaceae’s crops including tomato (Solanum lycopersicum L.). This study was conducted to evaluate ...
