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International Centre of Insect Physiology and Ecology

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Occurrence And Levels Of Multiple Veterinary Antibiotics In Broiler Chicken Processed And Sold In Southern Mozambique, Noemia Andre Mugabe, Jamal Kussaga, Abdulsudi Issa-Zacharia Jan 2026

Occurrence And Levels Of Multiple Veterinary Antibiotics In Broiler Chicken Processed And Sold In Southern Mozambique, Noemia Andre Mugabe, Jamal Kussaga, Abdulsudi Issa-Zacharia

All Rsif Scholars' Publications

Antibiotic residues in chicken meat pose a health risk to the general public, particularly to sensitive consumers. The aim of this study was to determine the level of antibiotic residues in on-the-market dressed chicken in the Southern Region of Mozambique. A total of 160 samples were randomly collected from eight markets located in five districts in the provinces of Maputo, Gaza, and Inhambane. The residues of β-lactams, quinolones, tetracyclines, and sulfonamides in chicken breast muscle were separated, identified, and quantified using high-performance liquid chromatography (HPLC), coupled with ultraviolet light (UV–VIS). Results revealed that 26.9% of the analyzed samples displayed detectable …


Cross-Domain Antimicrobial Resistance In Poultry Farming: A One Health Assessment Of Antimicrobial Use And Multidrug Resistance In Kiambu County, Kenya, Ann Kangai Munene, Peter Muiruri Mwangi, Lilly Caroline Bebora, Christine Minoo Mbindyo, John Muthini Maingi Jan 2026

Cross-Domain Antimicrobial Resistance In Poultry Farming: A One Health Assessment Of Antimicrobial Use And Multidrug Resistance In Kiambu County, Kenya, Ann Kangai Munene, Peter Muiruri Mwangi, Lilly Caroline Bebora, Christine Minoo Mbindyo, John Muthini Maingi

All Peer-Reviewed Publications

Background and Aim: Antimicrobial resistance (AMR) has emerged as a major One Health threat driven by inappropriate antimicrobial use (AMU) in humans, animals, and the environment. Poultry production is recognized as a key reservoir of antimicrobial-resistant bacteria, yet few studies in Kenya examine AMU and AMR across interconnected human–animal–environment domains. This study assessed AMU patterns among poultry farmers in Kiambu County and characterized phenotypic resistance in Escherichia coli and Enterococcus spp. isolated from humans, chickens, and chicken environments. Materials and Methods: A cross-sectional study was conducted from May to September 2024, involving 102 poultry farms. Farm demographics and AMU data …


Is Youth's Engagement In Agribusiness An Opportunity Or A Necessity? A Closer Look At The Situation In South Kivu, Eastern Democratic Republic Of The Congo, Cool Dady Mangole, Paul Martin Dontsop Nguezet, Shiferaw Feleke, Victor Manyong, Kamala Kaghoma Christian, Zoumana Bamba, Tahirou Abdoulaye Jan 2025

Is Youth's Engagement In Agribusiness An Opportunity Or A Necessity? A Closer Look At The Situation In South Kivu, Eastern Democratic Republic Of The Congo, Cool Dady Mangole, Paul Martin Dontsop Nguezet, Shiferaw Feleke, Victor Manyong, Kamala Kaghoma Christian, Zoumana Bamba, Tahirou Abdoulaye

All Peer-Reviewed Publications

Despite the broad focus on necessity- and opportunity-driven entrepreneurship in research and policy, the entrepreneurial dichotomy within the agribusiness context has not been adequately addressed. This study contributes to closing this knowledge gap by examining youth's perceptions of agribusiness through the lens of the push-pull motivation framework. Results reveal that 47% of youth are driven into agribusiness by both necessity and opportunity, while 41% by necessity alone and only 12% by opportunity alone. Key factors shaping youth's perceptions include gender, education, food processing participation, agribusiness-related training, land ownership, monthly income, and family farming background. The result further identifies significant heterogeneity …


Classification And Productivity Of Smallholder Broiler Farms In The Pwani Region, Tanzania, Rogia Saïdath Adéline Gomez, Said H. Mbaga Jan 2024

Classification And Productivity Of Smallholder Broiler Farms In The Pwani Region, Tanzania, Rogia Saïdath Adéline Gomez, Said H. Mbaga

All Rsif Scholars' Publications

Understanding the current performance of the broiler sub-sector in terms of production and finance is crucial for developing and implementing effective plans to enhance and improve it. Hence, the objective of this study is to classify the surveyed farmers in the coastal region of Tanzania based on their rearing characteristics. It also aims to evaluate their productivity by establishing an operating account for one broiler per group of identified farmers. Ad- ditionally, the study seeks to identify the factors that may influence the productivity of broiler farms. To this end, 78 broiler farmers were selected using a non-probability snowball sampling …


Artisanal And Small-Scale Mining In Tanzania And Health Implications: A Policy Perspective, Mwemezi J. Rwiza, Erasto Focus, Jonas Bayuo, Joseph Modest Kimaro, Matthias Kleinke, Theresia J. Lyasenga, Jerry T. Mosses, Janeth Marwa Apr 2023

Artisanal And Small-Scale Mining In Tanzania And Health Implications: A Policy Perspective, Mwemezi J. Rwiza, Erasto Focus, Jonas Bayuo, Joseph Modest Kimaro, Matthias Kleinke, Theresia J. Lyasenga, Jerry T. Mosses, Janeth Marwa

All Rsif Scholars' Publications

The mineral sector, especially its small-scale subsector, has become significant in the emerging economies of the Global South. Tanzania is the focus of this policy exposition paper because, aside from Ghana and South Africa, Tanzania is ranked 4th in Africa in terms of its mineral deposits and small-scale mining activities. The focus is also on artisanal and small-scale mining (ASM) because ASM operations have significantly increased in recent times across this mineral-rich country of East Africa. This is done against a negative backdrop-labelling of ASM as unsustainable, environmentally unfriendly, inefficient, and illegal. Tanzania has made some progress to respond to …


Assessment Of Biosecurity Practices Adoption In Broiler Farms In East Africa: Case Study Of Pwani Region In Tanzania, Rogia Saïdath Adéline Gomez Jan 2023

Assessment Of Biosecurity Practices Adoption In Broiler Farms In East Africa: Case Study Of Pwani Region In Tanzania, Rogia Saïdath Adéline Gomez

All Rsif Scholars' Publications

Broiler farming in Tanzania is an important poultry sub-sector, providing employment and the much-de- manded meat hence, contributing to the income and nutrition of the population. However, for small to medium-scale producers the profitability has been hampered by high incidences of diseases and costs associated with their control. This study aimed to assess the biosecurity practices adopted by broiler farmers in the Pwani region, Tanzania. A struc- tured questionnaire was administered to 78 broiler farmers complemented with on-site observations. Data collected were related to the socio-demographic characteristics, the structure of broiler farms, the level of biosecurity in the farms as …


Rsif Kenya Country Report 2022, Regional Scholarship And Innovation Fund (Rsif) Dec 2022

Rsif Kenya Country Report 2022, Regional Scholarship And Innovation Fund (Rsif)

Rsif Country Progress Reports

Kenya was the first country to contribute USD 2 million to Rsif in 2018 followed by Rwanda, and Kenya is the former chair of PASET. There are 25 competitively selected Kenyan Rsif doctoral scholars (68% women) in four thematic areas in eight different Rsif African Host Universities across the continent. There are so far 3 Kenyan Rsif alumni and 32 publications by Kenyan Rsif students. Two Kenyan universities were competitively selected as Rsif African host universities: University of Nairobi in Energy, including renewables (PhD in Physics) and Kenyatta University in Minerals, Mining and Material Science area (PhD in Material Science). …


Rsif Tanzania Country Report 2022, Rsif In Tanzania 2022 Nov 2022

Rsif Tanzania Country Report 2022, Rsif In Tanzania 2022

Rsif Country Progress Reports

Tanzania is part of PASET and has expressed its intention to contribute to Rsif. There are 11 competitively selected Tanzanian Rsif PhD students (73% women) in four thematic areas in four different African Host Universities. Two Tanzanian universities were competitively selected as Rsif African host universities: Sokoine University of Agriculture in Food security and agribusiness in 2017 and Nelson Mandela African Institution of Science and Technology, (NM-AIST) in mineral, mining and material science in 2019. They are hosting a total of 60 Rsif PhD students from 20 different nationalities with 50 publications in high impact journals to date. There are …


Management Of Tuta Absoluta With Introduced And Native Biocontrol Agents, Mama S. Sambo Jan 2022

Management Of Tuta Absoluta With Introduced And Native Biocontrol Agents, Mama S. Sambo

All PhD Dissertations

Tomato, Solanum lycopersicum L. (Solanaceae) is severely damaged by the South American tomato moth, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). Surveys among producers confirmed that the use of synthetic insecticides increased since the invasion of T. absoluta. The risks associated with the residual effect of insecticides in edible food and the negative effects it may have on ecosystem services,also increased. The aim of this project was to investigate the management of T. absoluta with introduced and native biocontrol agents in Kenya. These included a parasitoid introduced from South America,Dolichogenidea gelechiidivoris Marsh (Hymenoptera: Braconidae), native parasitoids, and the entomopathogenic fungus, Metarhizium anisopliae …


Insights Into The Virulence Of Campylobacter Jejuni Associated With Two-Component Signal Transduction Systems And Single Regulators, Gahamanyi Noel, Dae-Geun Song, Leonard E. G. Mboera, Mecky I. Matee, Dieudonné Mutangana, Raghavendra G. Amachawadi, Erick V. G Komba, Cheol-Ho Pan Jan 2022

Insights Into The Virulence Of Campylobacter Jejuni Associated With Two-Component Signal Transduction Systems And Single Regulators, Gahamanyi Noel, Dae-Geun Song, Leonard E. G. Mboera, Mecky I. Matee, Dieudonné Mutangana, Raghavendra G. Amachawadi, Erick V. G Komba, Cheol-Ho Pan

All Rsif Scholars' Publications

Abstract


Effects Of Annealing Ambient On The Structural, Optical And Electrical Properties Of Tio2:Ge Thin Films, Lilian A. Owino, Sebastian Waita, Robinson J. Musembi, Francis W. Nyongesa Jan 2022

Effects Of Annealing Ambient On The Structural, Optical And Electrical Properties Of Tio2:Ge Thin Films, Lilian A. Owino, Sebastian Waita, Robinson J. Musembi, Francis W. Nyongesa

All Grantees Publications

TiO2, a semiconducting material with a wide energy band gap, has been researched intensively due to its interesting properties and many potential applications. The films properties can as well be modified by preparing the films under diverse ambient to suit diverse applications. In this work, the effects of the annealing atmosphere on the structural, optical and electrical properties of pure TiO2 and TiO2:Ge composite thin films deposited by sputtering from commercially available pure TiO2 and TiO2:Ge (85:15) targets respectively were studied. The films were deposited on fluorine doped tin oxide glass substrates by radio frequency magnetron sputtering technique at room …


Long-Term Maize-Desmodium Intercropping Shifts Structure And Composition Of Soil Microbiome With Stronger Impact On Fungal Communities, Aneth David Mwakilili, Kilaza Samson Mwaikono, Sebastian Larsson Herrera, Charles A.O. Midega, Francis Magingo, Beatrix Alsanius, Teun Dekker, Sylvester Leonard Lyantagaye Oct 2021

Long-Term Maize-Desmodium Intercropping Shifts Structure And Composition Of Soil Microbiome With Stronger Impact On Fungal Communities, Aneth David Mwakilili, Kilaza Samson Mwaikono, Sebastian Larsson Herrera, Charles A.O. Midega, Francis Magingo, Beatrix Alsanius, Teun Dekker, Sylvester Leonard Lyantagaye

All Peer-Reviewed Publications

Purpose: Push–pull is an intercropping technology that is rapidly spreading among smallholder farmers in Sub-Saharan Africa. The technology intercrops cereals with Desmodium to fight off stem borers, eliminate parasitic weeds, and improve soil fertility and yields of cereals. The above-ground components of push–pull cropping have been well investigated. However, the impact of the technology on the soil microbiome and the subsequent role of the microbiome on diverse ecosystem benefits are unknown. Here we describe the soil microbiome associated with maize—Desmodium intercropping in push–pull farming in comparison to long-term maize monoculture. Methods: Soil samples were collected from long-term maize—Desmodium intercropping and …


Major Pests Of African Indigenous Vegetables In Tanzania And The Effects Of Plant Nutrition On Spider Mite Management, Jackline Kendi Mworia Jan 2021

Major Pests Of African Indigenous Vegetables In Tanzania And The Effects Of Plant Nutrition On Spider Mite Management, Jackline Kendi Mworia

All Master’s Theses

Pest status of insect pests is dynamic. In East Africa, there is scanty information on pests and natural enemy species of common African Indigenous Vegetables (AIVs). To determine the identity and distribution of pests and natural enemies in amaranth, African nightshade and Ethiopian kale as well as pest damage levels, a survey was carried out in eight regions of Tanzania. Lepidopteran species were the main pests of amaranth causing 12.8% damage in the dry season and 10.8% in the wet season. The most damaging lepidopteran species were S.recurvalis, U. ferrugalis, and S. litorralis. Hemipterans, A. fabae, A. crassivora, and M.persicae …


Genomic Characterization Of Fluoroquinolone-Resistant Thermophilic Campylobacter Strains Isolated From Layer Chicken Feces In Gangneung, South Korea By Whole-Genome Sequencing, Gahamanyi Noel, Dae-Geun Song, Kye-Yoon Yoon, Leonard E. G. Mboera, Mecky I. Matee, Dieudonné Mutangana, Erick V. G Komba, Cheol-Ho Pan, Raghavendra G. Amachawadi Jan 2021

Genomic Characterization Of Fluoroquinolone-Resistant Thermophilic Campylobacter Strains Isolated From Layer Chicken Feces In Gangneung, South Korea By Whole-Genome Sequencing, Gahamanyi Noel, Dae-Geun Song, Kye-Yoon Yoon, Leonard E. G. Mboera, Mecky I. Matee, Dieudonné Mutangana, Erick V. G Komba, Cheol-Ho Pan, Raghavendra G. Amachawadi

All Rsif Scholars' Publications

Thermophilic Campylobacter species of poultry origin have been associated with up to 80% of human campylobacteriosis cases. Layer chickens have received less attention as possible reservoirs of Campylobacter species. Initially, the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of two archived Campylobacter isolates (Campylobacter jejuni strain 200605 and Campylobacter coli strain 200606) from layer chickens to five antimicrobials (ciprofloxacin, nalidixic acid, erythromycin, tetracycline, and gentamicin) were determined using broth microdilution while the presence of selected antimicrobial resistance genes was performed by polymerase chain reaction (PCR) using specific primers. Whole-genome sequencing (WGS) was performed by the Illumina HiSeq X …


Molecular Detection Of Campylobacter Species From Human And Cattle Faecal Samples In Kilosa District, Tanzania, Gahamanyi Noel, Leonard E.G Mboera, Mecky I. Matee, Dieudonné Mutangana, Raghavendra G. Amachawadi, Kye-Yoon Yoon, Mr. Humphrey, Cheol-Ho Pan, Erick V.G Komba Jan 2021

Molecular Detection Of Campylobacter Species From Human And Cattle Faecal Samples In Kilosa District, Tanzania, Gahamanyi Noel, Leonard E.G Mboera, Mecky I. Matee, Dieudonné Mutangana, Raghavendra G. Amachawadi, Kye-Yoon Yoon, Mr. Humphrey, Cheol-Ho Pan, Erick V.G Komba

All Rsif Scholars' Publications

A growing number of Campylobacter species other than C. jejuni and C. coli have been considered as emerging human and animal pathogens but their contribution to human gastroenteritis is poorly documented. This study aimed at detecting Campylobacter species from human and cattle faecal samples in Kilosa District, Tanzania using molecular techniques without culture. Seventy (70) faecal samples were collected from five diarrheic and 65 non-diarrheic human patients attending Kilosa District Hospital in Tanzania from July to October 2019. During the same period, 30 faecal samples were also collected from healthy cattle in the same district. Genus and species identification of …


Antimicrobial Resistance Profiles, Virulence Genes, And Genetic Diversity Of Thermophilic Campylobacter Species Isolated From A Layer Poultry Farm In Korea, Gahamanyi Noel, Dae-Geun Song, Kye-Yoon Yoon, Leonard E. G Mboera, Mecky I. Matee, Mutangana Dieudonne Dieudonne, Raghavendra G. Amachawadi, Erick Komba, Cheol-Ho Pan Jan 2021

Antimicrobial Resistance Profiles, Virulence Genes, And Genetic Diversity Of Thermophilic Campylobacter Species Isolated From A Layer Poultry Farm In Korea, Gahamanyi Noel, Dae-Geun Song, Kye-Yoon Yoon, Leonard E. G Mboera, Mecky I. Matee, Mutangana Dieudonne Dieudonne, Raghavendra G. Amachawadi, Erick Komba, Cheol-Ho Pan

All Rsif Scholars' Publications

Thermophilic Campylobacter species are among the major etiologies of bacterial enteritis globally. This study aimed at assessing the antimicrobial resistance (AMR) profiles, virulence genes, and genetic diversity of thermophilic Campylobacter species isolated from a layer poultry farm in South Korea. One hundred fifty-three chicken feces were collected from two layer poultry farms in Gangneung, South Korea. The Campylobacter species were isolated by cultural techniques, while PCR and sequencing were used for species confirmation. Antimicrobial susceptibility testing for six antimicrobials [ciprofloxacin (CIP), nalidixic acid (NAL), sitafloxacin (SIT), erythromycin (ERY), tetracycline (TET), and gentamicin (GEN)] was carried out by broth microdilution. Three …


An Assessment Of The Epidemiology And Socioeconomic Impact Of The 2019 African Swine Fever Outbreak In Ngara District, Western Tanzania, Jean Nepomuscene Hakizimana, C.C Kivumbi, C Yona, Gerald M. Misinzo Jan 2021

An Assessment Of The Epidemiology And Socioeconomic Impact Of The 2019 African Swine Fever Outbreak In Ngara District, Western Tanzania, Jean Nepomuscene Hakizimana, C.C Kivumbi, C Yona, Gerald M. Misinzo

All Rsif Scholars' Publications

African swine fever (ASF) is a contagious viral transboundary animal disease affecting domestic pigs caused by ASF virus (ASFV). This study was conducted in order to determine the genetic characteristics, risk factors and socioeconomic impact of an ASF outbreak in 2019 in Ngara, western Tanzania. Tissue samples from dead domestic pigs with clinical picture suggestive of ASF infection were collected for ASF confirmation and genetic characterization of ASFV. Data on the risk factors and socioeconomic impact associated with the ASF outbreak were collected from consenting farmers using a semi-structured questionnaire. Disease confirmation was done by detection of genomic ASFV DNA …


Effects Of Traditional Processing Techniques On The Nutritional And Microbiological Quality Of Four Edible Insect Species Used For Food And Feed In East Africa, Dorothy N. Nyangena, Christopher Mutungi, Samuel Imathiu, John Kinyuru, Hippolyte Affognon, Sunday Ekesi, Dorothy Nakimbugwe, Komi K.M. Fiaboe May 2020

Effects Of Traditional Processing Techniques On The Nutritional And Microbiological Quality Of Four Edible Insect Species Used For Food And Feed In East Africa, Dorothy N. Nyangena, Christopher Mutungi, Samuel Imathiu, John Kinyuru, Hippolyte Affognon, Sunday Ekesi, Dorothy Nakimbugwe, Komi K.M. Fiaboe

All Peer-Reviewed Publications

Edible insects are increasingly being considered as food and feed ingredients because of their rich nutrient content. Already, edible insect farming has taken-off in Africa, but quality and safety concerns call for simple, actionable hazard control mechanisms. We examined the effects of traditional processing techniques—boiling, toasting, solar-drying, oven-drying, boiling + oven-drying, boiling + solar-drying, toasting + oven-drying, toasting + solar-drying—on the proximate composition and microbiological quality of adult Acheta domesticus and Ruspolia differens, the prepupae of Hermetia illucens and 5th instar larvae of Spodoptera littoralis. Boiling, toasting, and drying decreased the dry matter crude fat by 0.8–51% in the order: …


Insects For Life – A Brief History Of Icipe@50, International Centre Of Insect Physiology And Ecology (Icipe) Jan 2020

Insects For Life – A Brief History Of Icipe@50, International Centre Of Insect Physiology And Ecology (Icipe)

icipe Annual Reports

No abstract provided.


Status And Management Of Rice Blast Disease Caused By Pyricularia Oryzae Cav. In Upland Rice In Selected Regions In Tanzania, Ibrahim Hashim Jan 2020

Status And Management Of Rice Blast Disease Caused By Pyricularia Oryzae Cav. In Upland Rice In Selected Regions In Tanzania, Ibrahim Hashim

All PhD Dissertations

This study aimed to enhance effective rice blast disease management by the establishment of the current status of the disease, its effect on yield of selected upland rice genotypes and the use of environmentally friendly methods such as bio-agents and hot water seed treatment. Two surveys were conducted in 2017/2018 and 2018/2019 rice growing seasons to investigate farmers' knowledge of rice blast disease and its management and to establish the incidence and severity of rice blast disease in farmers' rice fields in Morogoro and Tanga regions. Data were collected through face to face interviews using semi structured questionnaire. Rice blast …


Susceptibility Of Campylobacter Strains To Selected Natural Products And Frontline Antibiotics, Gahamanyi Noel Jan 2020

Susceptibility Of Campylobacter Strains To Selected Natural Products And Frontline Antibiotics, Gahamanyi Noel

All Rsif Scholars' Publications

Campylobacter species have developed resistance to existing antibiotics. The development of alternative therapies is, therefore, a necessity. This study evaluates the susceptibility of Campylobacter strains to selected natural products (NPs) and frontline antibiotics. Two C. jejuni strains (ATCC® 33560TM and MT947450) and two C. coli strains (ATCC® 33559TM and MT947451) were used. The antimicrobial potential of the NPs, including plant extracts, essential oils, and pure phytochemicals, was evaluated by broth microdilution. The growth was measured by spectrophotometry and iodonitrotetrazolium chloride. Antibiotic resistance genes (tet(O) and gyrA) were characterized at the molecular level. The minimum inhibitory concentrations (MICs) and the minimum …


Prevalence, Risk Factors, And Antimicrobial Resistance Profiles Of Thermophilic Campylobacter Species In Humans And Animals In Sub-Saharan Africa: A Systematic Review, Gahamanyi Noel Jan 2020

Prevalence, Risk Factors, And Antimicrobial Resistance Profiles Of Thermophilic Campylobacter Species In Humans And Animals In Sub-Saharan Africa: A Systematic Review, Gahamanyi Noel

All Rsif Scholars' Publications

-ermophilic Campylobacter species are clinically important aetiologies of gastroenteritis in humans throughout the world. -e colonization of different animal reservoirs by Campylobacter poses an important risk for humans through shedding of the pathogen in livestock waste and contamination of water sources, environment, and food. A review of published articles was conducted to obtain information on the prevalence and antimicrobial resistance (AMR) profiles of thermophilic Campylobacter species in humans and animals in sub-Saharan Africa (SSA). Electronic databases, namely, PubMed, Google Scholar, Research4life-HINARI Health, and Researchgate.net, were searched using the following search terms “thermophilic Campylobacter,” “Campylobacter jejuni,” “Campylobacter coli,” “diarrhea/diarrhoea,” “antimicrobial resistance,” …


Changes In Chemical And Microbiological Quality Of Semi-Processed Black Soldier Fly (Hermetia Illucens L.) Larval Meal During Storage, E. Kamau, C. Mutungi, J. Kinyuru, S. Imathiu, S. Ekesi, S. Ekesi, D. Nakimbugwe, K. K.M. Fiaboe Jan 2020

Changes In Chemical And Microbiological Quality Of Semi-Processed Black Soldier Fly (Hermetia Illucens L.) Larval Meal During Storage, E. Kamau, C. Mutungi, J. Kinyuru, S. Imathiu, S. Ekesi, S. Ekesi, D. Nakimbugwe, K. K.M. Fiaboe

All Peer-Reviewed Publications

Edible insects are receiving attention as a protein source in the food and feed sector. However, successful commercialisation requires mass production matched with appropriate processing and storage techniques. The quality of dried and pulverised black soldier fly larvae stored in woven polypropylene (PP) sacks, polyethylene (PE) bags and plastic containers with screw lid (PL) in ambient and refrigerated environments was monitored over six months. Chemical indicators (oxidation, fatty acid profile), microbiological parameters (total viable counts, yeast and moulds, Enterobacteriaceae, presumptive coliforms, Salmonella) and colour change were examined. Temperature and relative humidity of the storage environments were monitored. In the ambient …


From Best Fit Technologies To Best Fit Scaling: Incorporating And Evaluating Factors Affecting The Adoption Of Grain Legumes In Sub-Saharan Africa, Andrew Farrow, Esther Ronner, Greta J. Van Den Brand, Stephen K. Boahen, Wilson Leonardo, Endalkachew Wolde-Meskel, Samuel Adjei-Nsiah, Regis Chikowo, Fredrick Baijukya, Peter Ebanyat, Emmanuel A. Sangodele, Jean Marie Sanginga, Speciose Kantengwa, Lloyd Phiphira, Paul Woomer, Theresa Ampadu-Boakye, Edward Baars, Fred Kanampiu, Bernard Vanlauwe, Kenneth E. Giller Jun 2019

From Best Fit Technologies To Best Fit Scaling: Incorporating And Evaluating Factors Affecting The Adoption Of Grain Legumes In Sub-Saharan Africa, Andrew Farrow, Esther Ronner, Greta J. Van Den Brand, Stephen K. Boahen, Wilson Leonardo, Endalkachew Wolde-Meskel, Samuel Adjei-Nsiah, Regis Chikowo, Fredrick Baijukya, Peter Ebanyat, Emmanuel A. Sangodele, Jean Marie Sanginga, Speciose Kantengwa, Lloyd Phiphira, Paul Woomer, Theresa Ampadu-Boakye, Edward Baars, Fred Kanampiu, Bernard Vanlauwe, Kenneth E. Giller

All Peer-Reviewed Publications

The success of scaling out depends on a clear understanding of the factors that affect adoption of grain legumes and account for the dynamism of those factors across heterogeneous contexts of sub-Saharan Africa. We reviewed literature on adoption of grain legumes and other technologies in sub-Saharan Africa and other developing countries. Our review enabled us to define broad factors affecting different components of the scaling out programme of N2Africa and the scales at which those factors were important. We identified three strategies for managing those factors in the N2Africa scaling out programme: (i) testing different technologies and practices; (ii) evaluating …


Unexpected Diversity Of Wolbachia Associated With Bactrocera Dorsalis (Diptera: Tephritidae) In Africa, Joseph Gichuhi, Fathiya M. Khamis, Johnnie Van Den Berg, Sunday Ekesi, Jeremy K. Herren Jun 2019

Unexpected Diversity Of Wolbachia Associated With Bactrocera Dorsalis (Diptera: Tephritidae) In Africa, Joseph Gichuhi, Fathiya M. Khamis, Johnnie Van Den Berg, Sunday Ekesi, Jeremy K. Herren

All Peer-Reviewed Publications

Bactrocera dorsalis (Hendel) is an important pest of fruit-bearing plants in many countries worldwide. In Africa, this pest has spread rapidly and has become widely established since the first invasion report in 2003. Wolbachia is a vertically transmitted endosymbiont that can significantly influence aspects of the biology and, in particular, the reproduction of its host. In this study, we screened B. dorsalis specimens collected from several locations in Africa between 2005 and 2017 for Wolbachia using a PCR-based assay to target the Wolbachia surface protein wsp. Of the 357 individuals tested, 10 were positive for Wolbachia using the wsp assay. …


Ecological Niche Modeling As A Tool For Prediction Of The Potential Geographic Distribution Of Bacillus Anthracis Spores In Tanzania, Elibariki R. Mwakapeje, Sood A. Ndimuligo, Gladys Mosomtai, Samuel Ayebare, Luke Nyakarahuka, Hezron E. Nonga, Robinson H. Mdegela, Eystein Skjerve Feb 2019

Ecological Niche Modeling As A Tool For Prediction Of The Potential Geographic Distribution Of Bacillus Anthracis Spores In Tanzania, Elibariki R. Mwakapeje, Sood A. Ndimuligo, Gladys Mosomtai, Samuel Ayebare, Luke Nyakarahuka, Hezron E. Nonga, Robinson H. Mdegela, Eystein Skjerve

All Peer-Reviewed Publications

Introduction: Anthrax is caused by the spore-forming, Gram-positive bacterium Bacillus anthracis. The aim of this study was to predict the potential distribution of B. anthracis in Tanzania and produce epidemiological evidence for the management of anthrax outbreaks in the country. Methods: The Maxent algorithm was used to predict areas at risk of anthrax outbreaks based on the occurrence and environmental data in Arusha and Kilimanjaro regions; the model was later transferred to predict the entire country. Seventy percent of the occurrence data were used to train the model, while 30% were used for model evaluation. Results: Four regions of northern …


Bacterial Contamination And Antimicrobial Susceptibility Pattern Of Isolates From Stethoscopes At A Referral Hospital In Tanzania, Elichilia R. Shao, Nancy P. Somi, Emmanuel G. Kifato, Daniel W. Gunda, Semvua B. Kilonzo, Balthazar M. Nyombi Jan 2019

Bacterial Contamination And Antimicrobial Susceptibility Pattern Of Isolates From Stethoscopes At A Referral Hospital In Tanzania, Elichilia R. Shao, Nancy P. Somi, Emmanuel G. Kifato, Daniel W. Gunda, Semvua B. Kilonzo, Balthazar M. Nyombi

All Rsif Scholars' Publications

Background

Nosocomial infections pose a challenge to the medical field and are a global safety issue for both patients and health care providers. In developing countries, the magnitude of the problem remains underestimated and literature is very scarce. Some nosocomial infections spread via contaminated medical equipment such as stethoscopes. No data reported from Tanzania about the potential role of stethoscopes in spreading these infections.

Methods

This cross-sectional study was conducted to determine bacterial contamination and antimicrobial susceptibility of isolates at Kilimanjaro Christian Medical Centre (KCMC) from February to April 2014. One hundred medical doctors and medical students were randomly selected …


Community Forestry Frameworks In Sub-Saharan Africa And The Impact On Sustainable Development, Lalisa A. Duguma, Joanes Atela, Alemayehu N. Ayana, Dieudonne Alemagi, Mathew Mpanda, Moses Nyago, Peter A. Minang, Judith M. Nzyoka, Divine Foundjem-Tita, Cécile Ngo Ntamag-Ndjebet Dec 2018

Community Forestry Frameworks In Sub-Saharan Africa And The Impact On Sustainable Development, Lalisa A. Duguma, Joanes Atela, Alemayehu N. Ayana, Dieudonne Alemagi, Mathew Mpanda, Moses Nyago, Peter A. Minang, Judith M. Nzyoka, Divine Foundjem-Tita, Cécile Ngo Ntamag-Ndjebet

All Peer-Reviewed Publications

Community based forest management (CBFM) has been implemented in Africa since the 1980s. Three main objectives, which are currently part of the sustainable development goals (SDGs), underlie the formation of CBFM. They are (1) enhancing community engagement in forest management, (2) reducing rural poverty, and (3) promoting forest resources conservation. We examine CBFM frameworks in sub-Saharan Africa (SSA) and CBFM schemes’ contribution to selected sustainable development goals relevant to the forestry sector. Five SSA countries, Ethiopia, Kenya, Cameroon, Uganda, and Tanzania were chosen for the study because of their long-term engagement in CBFM. The analysis was based on desk review …


Spatial Distribution Of Bactrocera Dorsalis And Thaumatotibia Leucotreta In Smallholder Avocado Orchards Along Altitudinal Gradient Of Taita Hills And Mount Kilimanjaro, James J. Odanga, Samira Mohamed, Sizah Mwalusepo, Florence Olubayo, Richard Nyankanga, Fathiya Khamis, Ivan Rwomushana, Tino Johansson, Sunday Ekesi Jun 2018

Spatial Distribution Of Bactrocera Dorsalis And Thaumatotibia Leucotreta In Smallholder Avocado Orchards Along Altitudinal Gradient Of Taita Hills And Mount Kilimanjaro, James J. Odanga, Samira Mohamed, Sizah Mwalusepo, Florence Olubayo, Richard Nyankanga, Fathiya Khamis, Ivan Rwomushana, Tino Johansson, Sunday Ekesi

All Peer-Reviewed Publications

Avocado (Persea americana) fruits are an important source of income and a nutritious food for small-scale growers and other stakeholders involved in farming along the Afrotropical highlands of Taita Hills and Mount Kilimanjaro in Kenya and Tanzania, respectively. Avocado fruits are infested by several insect pests, namely the Asian invasive fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae), and the false codling moth, Thaumatotibia leucotreta Meyrick (Lepidoptera: Tortricidae). However, there is inadequate information on the distribution patterns of these pests in small-scale avocado cropping systems in the East African highlands. This study was initiated to generate a spatial distribution map of …


Physico-Chemical Properties Of Extruded Aquafeed Pellets Containing Black Soldier Fly (Hermetia Illucens) Larvae And Adult Cricket (Acheta Domesticus) Meals, F. G. Irungu, C. M. Mutungi, A. K. Faraj, H. Affognon, N. Kibet, C. Tanga, S. Ekesi, D. Nakimbugwe, K. K.M. Fiaboe Jan 2018

Physico-Chemical Properties Of Extruded Aquafeed Pellets Containing Black Soldier Fly (Hermetia Illucens) Larvae And Adult Cricket (Acheta Domesticus) Meals, F. G. Irungu, C. M. Mutungi, A. K. Faraj, H. Affognon, N. Kibet, C. Tanga, S. Ekesi, D. Nakimbugwe, K. K.M. Fiaboe

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Fish farming is faced with the challenge of high cost of feeds because of the cost of high quality protein needed for formulation of the feeds. Thus, there is urgent need for alternative protein sources. The effects of substituting freshwater shrimp meal (FWSM) with black soldier fly larvae meal (BSFM) or adult cricket meal (ACM) on physico-chemical properties of hot-extruded fish feed pellets were investigated. The FWSM protein in a 26 g/100 g protein fish feed formulation was substituted at 0, 25, 50 and 75%, and moisture content of the formulated blends adjusted to 10, 20 or 30 g/100 g …