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Natural Sciences

72nd Graduation: Doctoral Citations – CoNAS

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ADAKU Christopher
ADAKU Christopher

ADAKU Christopher
Chemical Structure and Properties of Anthocyanins from Selected Plant Species from Uganda.

Mr. ADAKU Christopher investigated a class of bioactive phytochemicals known as anthocyanins from selected indigenous plants, with the purpose of identifying ingredients for the development of nutraceuticals and for application as natural food colourants. This follows the increasing availability of natural health products with unsubstantiated health claims and the health concern associated with the use of synthetic food colourants. During the study, eleven new and seven known compounds were isolated and their properties deciphered. The compounds exhibited colour and stability required for food colourant application and showed remarkable antioxidant activity which is indicative of their potential beneficial health effects. These findings will lead to the development of nutraceuticals and other natural health products with guaranteed safety and efficacy. The isolated compounds can also be used as natural functional food colurants, especially for colouring refrigerated foods such as yoghurt, ice cream and beverages. This study was funded by SIDA through DRGT and MUTHI and supervised by Prof. Byamukama Robert and Prof. Kiremire Bernard (RIP).


ANYWAR Godwin
ANYWAR Godwin

ANYWAR Godwin
Ethnopharmacology, cytotoxicity, antiviral and immunomodulatory profiles of medicinal plant species used by herbalists in treating people living with HIV/AIDS in Uganda

Mr. ANYWAR Godwin investigated the cytotoxicity, antiviral activity and immunomodulatory potential of medicinal plant species used by herbalists to treat people living with HIV/AIDS (PLHIV) in Uganda. The study was motivated by the fact that PLHIV widely use untested herbal medicines even when already on antiretroviral treatment. The results from this study showed several plant species are mainly used to treat opportunistic infections among PLHIV. Two of the most widely used plant species, Albizia coriaria and Warburgia ugandensis were highly toxic to the human glioblastoma cell line used (U87.CD4.CXCR4). Regression analysis also showed that the plant extracts had varying selective anti-HIV-1 activities in vitro. The plant extracts also elicited different immune responses by stimulating different cytokines from Peripheral Mononuclear Blood Cells (PMBCs). Godwin recommend testing of crude plant extract mixtures used by the herbalists, and isolating and testing pure compounds from the most promising plant species. The study was funded by the Consortium for Advanced Research Training in Africa (CARTA), and DAAD and supervised by Prof. Esezah Kakudidi, Dr. Andreas Shubert, Prof. Robert Byamukama and Prof. Christian Jassoy.


ENEKU John Paul
ENEKU John Paul

ENEKU John Paul
Optimization of the electrical resistivity of magnetron sputtered aluminium and boron co-doped zinc oxide thin films for solar cells.

Mr. ENEKU John Paul investigated co-doping of zinc oxide thin films with both aluminium and boron elements to develop a transparent thin film material of very low electrical resistivity for application as a transparent front electrode in thin film solar cells. This offers a low cost and eco-friendly alternative to the costly and toxic Indium Tin Oxide (ITO) electrode which currently dominates the solar cell market. The thin film based solar cells have the potential to significantly lower the price of photovoltaics based electricity. The investigation established that the co-doped zinc oxide thin film material can be used effectively as a transparent electrode in thin-film solar cells and can replace the costly standard Indium Tin Oxide (ITO). This study was funded by Makerere Universsity and International Science Program (ISP, Sweden) and supervised by Prof. Tom Otiti and Prof. Julius Mwabora.


BUTTIBWA Mary
BUTTIBWA Mary

BUTTIBWA Mary
Utilizing heated pollen and androgenesis pathways for the production of haploids in cassava

Ms. BUTTIBWA Mary investigated how heat-treatment of pollen facilitates production of haploids in cassava. Pollen, a fine powdery substance that comes from the male part of flowers and an equivalent of sperms animals, can be heat-inactivated and used hasten cassava embryo development. Because cassava’s reproduction cycle is too long it is difficult to quickly develop new varieties. The haploid technology can shorten this by 50%. Using heated pollen in pollination fostered the development of cassava embryos that further grew into haploid plants in a short time. The heated pollen germinated on the stigma but no fertilization was achieved; however, embryo development was stimulated. Early embryo rescue techniques rescued immature embryos on an artificial growth medium and re-generated into plants. This work contributes to the genetic improvement of cassava. The study was funded by the Bill and Melinda Gates Foundation through The International Centre for Tropical Agriculture and was supervised by Prof. Arthur Tugume and Dr. Robert Kawuki.


INUWA Badamasi
INUWA Badamasi

INUWA Badamasi
Effect of xenoestrogenic substances on fish health and reproductive potential of Nile tilapia, Nile perch and lungfish from two-distinctly polluted sites of Lake Victoria: the “more polluted”

Mr. INUWA Badamasi studied the effect of xenoestrogenic substances on fish health and reproductive potential of Nile tilapia, Nile perch and lungfish from two-distinctly polluted sites of Lake Victoria: the “more polluted” (Kasenyi, Ggaba, Port bell, Jinja) and the “less polluted” (Kasensero, Bale, and Bukakata). The motivation for this research was the decline in the wild fish stocks population of Lake Victoria, attributable to several factors, including pollution. Specifically, the study examined the liver conditions and gonadal development of fishes under different levels of pollution. Severe liver alterations were higher in fishes from more polluted compared to those from less polluted areas. Indeed, the chemical contamination of Lake Victoria could have caused the liver lesions and other changes in the fishes. Overtime, such chemical contamination could lead to negative impacts on the consumption of fish and fish products if actions are not taken to mitigate the risks. This study was funded by the Nigerian Federal Ministry of Education and supervised by Assoc Prof Charles Masembe and Dr. Robinson Odong.


KITO Luliro Silas
KITO Luliro Silas

KITO Luliro Silas
The Numerical Range of Linear Relations and Stability Theorems.

Mr. KITO Luliro Silas studied the numerical range and stability theorems of linear maps on some mathematical spaces with the purpose of establishing the existence and uniqueness of solutions (solvability) to linear relation inclusions. In this study, he explored the effects of small alterations on certain maps between special spaces that are of mathematical interest in solving certain differential equations. The study found that within a certain degree of change, a small alteration on the map will not affect a particular set of characteristics of the map. These results are useful but not limited to; solving problems formulated when modelling airflow around an obstruction for example calculation of forces and moments on aircrafts, modelling fission weapon detonation, determination of mass flow rate of petroleum through pipelines, predicting weather patterns and ocean currents, solving fluid dynamics problems that require computation of fluid properties such as flow velocity, pressure, density and fluid temperature as functions of space and time. This study was funded by SIDA and was supervised by Assoc. Prof. Gerald Wanjala, Dr. Saul H. Nsubuga, Dr. Vincent. A. Ssembatya and Dr. Alex B. Tumwesigye.


KYOMUHANGI Annet
KYOMUHANGI Annet

KYOMUHANGI Annet
Reduced Modules Relative to Functors

Ms. KYOMUHANGI Annet’s study focused on the description of reduced modules and their dual using functors. She introduced and studied properties of a functor that measures how far a module defined over a commutative ring is from being reduced. She also found a machinery that allows one to associate a nil ideal to every ring. Since reduced modules are dualisable, Annet studied properties of their dual known as coreduced modules. She further introduced functors that describe coreduced modules and studied their properties. Moreover, she found that reduced modules simplify computations of local cohomology while coreduced modules simplify computations of local homology. The study was funded by Makerere-Sida bilateral programme (2015-2020); Project 316: Capacity building in Mathematics and its applications. Ms. Kyomuhangi was supervised by Dr. David Ssevviiri and Dr. Alex Samuel Bamunoba, both from Makerere University.


MAYANJA Edison
MAYANJA Edison

MAYANJA Edison
Mathematical Models for HIV-HCV Co-infection Dynamics under Various Control Strategies

Mr. MAYANJA Edison formulated mathematical models to study the dynamics of Human Immunodeficiency Virus (HIV) and Hepatitis C virus (HCV) co-infection. The HIV-HCV co- infection mathematical models which had been developed before, either ignored infection stages or considered HCV in only two stages of infection: the acute and chronic infection. However, the chronic stage of HCV is very long and consists of infected individuals that are asymptomatic yet infectious. Thus, this required deep analysis that had not been fully elucidated. In his study, he analysed the HCV chronic stage split it into: before onset of cirrhosis and its complications (Latent stage) and after onset of cirrhosis (Advanced stage). He used these mathematical models to investigate how HIV infection impacts the dynamics of HCV infection and vice versa. The study revealed that, increasing the rate of enrolment on HIV treatment reduces HCV prevalence and vice versa. Transmission probability per sexual contact and average number of sexual partners acquired per year were equally likely to result into increased HIV and HCV infections and these parameters were the most sensitive in increasing each of HIV and HCV infections. The study was funded by SIDA and was supervised by Prof. Livingstone S. Luboobi, Prof. Juma Kasozi, and Dr. Rebecca N. Nsubuga.


NABAWANDA Olivia
NABAWANDA Olivia

NABAWANDA Olivia
Flattened partitions: Pattern Avoidance and Behavior of Permutation Statistics.

Ms. NABAWANDA Olivia studied a sorting procedure (run-sort function) on permutations, where runs are rearranged in lexicographic order. The aim of the study was to investigate the behavior of the run-sort function with different permutation statistics namely runs, descents, peak-values and left-right minima. Olivia used Mathematica, a computation/mathematical software to generate the necessary data, which in turn she used in combination with bijective proofs and generating functions as the main tools. New combinatorial interpretations to several counting sequences namely A124324, Catalan, Fibonacci, Motzkin and Powers of two among others were provided as already indexed on the On-line Encyclopedia of Integer Sequences (OEIS) database, hence contributing to the existing body of knowledge. She also proved that the descent generating polynomials for these permutations are real rooted, and satisfy an interlacing property similar to that satisfied by the Eulerian polynomials, which are known to be real-rooted. Moreover, the run-sort function was found to possess interesting probability distribution properties. The research findings exhibited an interplay between discrete mathematics, probability theory and complex analysis. The study was funded by SIDA and supervised by Dr. Alex Samuel Bamunoba, Prof. Paul Vaderlind and Prof. Fanja Rakotondrajao of Antananarivo.


NALULE Rebecca Muhumuza
NALULE Rebecca Muhumuza

NALULE Rebecca Muhumuza
Hierarchical Models and Spatio-Temporal Processes In Data Analysis

Ms. NALULE Rebecca Muhumuza studied Hierarchical Models and Spatio-Temporal Processes in Data- Analysis with the aim of analyzing data which possesses both temporal and spatial dependence. She developed a non-linear general spatio-temporal model by extending Serfling’s model. Rebecca applied the theoretical findings to data of an outbreak of influenza in Southern Germany between 2001 and 2007. She also extended the random effect model by introducing the correlation coefficient between random effects in its definition. She again considered the problem of Bayesian estimation of heterogeneity parameter in the generalized random effects model where a comparison between the obtained results with the existing approaches was made. Rebecca used the findings for consensus building in meta-analyses of measurement results for the Newtonian constant of gravitation data and for the effectiveness of antiretroviral pre-exposure prophylaxis in preventing HIV infection. The study was funded by SIDA and was supervised by Prof Olha Bodnar, Dr. John Bosco Asiimwe and Dr. Rebecca N. Nsubuga.


NANFUKA Mary
NANFUKA Mary

NANFUKA Mary
The use of Splines for solving ill-posed problems, with application to the Cauchy problems for the Heat and Helmholtz equations

Ms. NANFUKA Mary developed a regularization procedure based on splines. The procedure was used to solve the Cauchy problems for the heat and Helmholtz equations, which are ill posed problems. The Cauchy problem for the heat equation had been previously solved by the Fourier transform method. The method, assumed that the time derivative, represented a periodic function which is not realistic. Thus, as an alternative, Mary approximated the time derivative by a cubic smoothing spline. The spline method effectively bounded the errors in the output solution according to the stability estimates. The Cauchy problem for the Helmholtz equation was regularized, by introducing a bounded approximation of the second derivative in the x-variable using cubic smoothing splines. A bound for the approximate
derivative was derived. The stability estimates, showed that the method worked pretty well and produced accurate results. The newly developed method was applied to an industrial setting for determining the surface temperature of steel and good results were achieved. The method is recommended for use for the solution to inverse problems that occur in the engineering and medical fields. The research was funded by Sida and supervised by Dr. Fredrik Berntsson, Dr.Godwin Kakuba and Assoc Prof. John Mango.


OCHEN William
OCHEN William

OCHEN William
Measurement and Modelling of Residual Stress in Porcelain Tiles Formulated from Different Quartz Particle Sizes in Uganda

Mr. OCHEN William studied residual stress in porcelain tiles formulated from different quartz particle sizes in Uganda. He measured residual stress using X-ray diffraction method, and modeling based on finite element method using abaqus software. His study was prompted by numerous complaints concerning the strength of the locally manufactured tiles. His study found out that residual stress decreases with an increase in quartz particle size over a range of 45-200μm. The decline in residual stress is attributed to the formation of cracks, which affects strength and hardness of the tiles. He further noted that upon sintering at 13000C, tiles with quartz particle size of  90μm exhibited properties that satisfied the ISO 13006 standard. His study therefore recommends the idea of fine quartz milling in a range of not more than 90μm. This study was funded by DAAD and supervised by Prof. Florence Mutonyi D’ujanga and Dr. Bosco Oruru.


OKELLO Omwonylee Joseph
OKELLO Omwonylee Joseph

OKELLO Omwonylee Joseph
Limiting Behaviours of the Longest Gaps Between Occurrence Epochs in Poisson Processes.

Mr. OKELLO Omwonylee Joseph investigated the asymptotic properties of longest gaps between occurrence epochs in Poisson processes using the theory of large deviations, based on the laws of large numbers. To do this, the global estimation of the distribution functions of longest gaps was derived with the help of discretization argument and the Slivnyak’s formula of Palm theory. The derived global estimation was then used to achieve Laplace transform asymptotics of the longest gaps. Through the application of Fenchel-Legendre transform, it was found out that the longest gaps satisfy two large deviation principles with exponential and power rate functions. Since this study was about the probabilistic analysis of rare events, the results not only fill the literature gaps but also provide a very useful planning tool to insurance companies, risk analyst, department of disaster preparedness, operation managers and others. The study was funded by SIDA and was supervised by Dr. Xiangfeng Yang; Dr. Richard Awichi Opaka and Dr. Fred Mayabala.


SSENYUNZI Richard Cliffe
SSENYUNZI Richard Cliffe

SSENYUNZI Richard Cliffe
Modelling Precipitable Water Vapour Using Global Navigation Satellite System Data over the East African Tropical Region.

Mr. SSENYUNZI Richard investigated the temporal and spatial variability of the zenith total delay and precipitable water vapour (PWV) data over the East African tropical region. The PWV data was collected from 13 geodetic permanent GNSS stations for the years 2013 to 2016. Lack of key variables such as the atmospheric water vapour, has been affecting the accuracy of weather predictions over the East African tropical region. The lack of this important parameter has been partly due to insufficient data and very scarce and unreliable tropospheric water vapour monitoring instruments in the region. In this study, the PWV, pressure and the weighted mean temperature linear models have been developed. The site-specific models developed can be utilized to supplement the GNSS and the weather stations data over the thirteen stations since they can provide estimates of nearly a similar degree of precision compared to the measured values. The study was funded by the African Development Bank and supervised by Prof. Florence Mutonyi D’ujanga and Dr. Bosco Oruru.


WAMONO Felix
WAMONO Felix

WAMONO Felix
Contributions to reduced rank regression modelling with applications to small area estimation.

Mr. WAMONO Felix studied the problem of decomposing residuals in the GMANOVA-MANOVA model with rank restrictions on parameters with applications in small area estimation. Firstly, Residuals in the GMANOVA-MANOVA model with rank restrictions on the mean parameters was considered. The main objective was to define residuals useful for evaluating the reduced rank restriction model. We decomposed linear spaces into four subspaces as it can be done for the Extended Growth Curve model with two “profiles”. The new residuals were defined by orthogonal projections on these subspaces. It was discussed how the new residuals could be used to test model assumptions. Secondly, Survey data from Uganda, including the 2014 Uganda Population and Housing Census data was analysed using small area estimation methodology. The GMANOVA-MANOVA model with rank restrictions on parameters was used to estimate the small area means. This study was funded by SIDA and was supervised by Prof. Dietrich von Rosen, Prof. Martin Singull, Assoc. Prof. Leonard Atuhaire and Dr. Innocent Ngaruye.


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Natural Sciences

CoNAS Annual Report 2024

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Cover page of the CoNAS Annual Report 2024. College of Natural Sciences, Makerere University, Kampala Uganda, East Africa.

The College of Natural Sciences (CoNAS) is one of the 9 constituent colleges of Makerere University, dedicated to advancing scientific knowledge and education in Uganda.

Comprising two schools and seven departments, CoNAS offers cutting-edge research and academic programs across diverse fields, including chemistry, physics, mathematics, and biological sciences.

The College is committed to nurturing innovative thinkers and leaders who can tackle the complex challenges of today’s world through scientific exploration and discovery. With a long-standing tradition of academic excellence, CoNAS plays a central role in shaping Uganda’s scientific and technological future. It fosters a culture of critical thinking, problem-solving, and sustainable development. The College’s distinguished faculty, state-of-the-art laboratories, and collaborative research initiatives continue to inspire and develop world-class professionals who make significant contributions to both national and global progress.

This edition of the report highlights the activities and achievements of 2024, aligned with the University’s strategic focus on Innovative Teaching and Learning, Research, Innovations and Technology Transfer, and Strategic Engagement and Partnerships.

Hasifa Kabejja

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Natural Sciences

Preparing Graduates for Life after University: CoNAS Launches Terminal Seminar for Final Year Students

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Dr. Godfrey Kawooya Kubiriza, one of the key architects of the programme, briefs participants on the significance of the seminar. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.

Relevance of the seminar

Transitioning from university life to the professional world can be a daunting experience for many graduates. This challenge is particularly pronounced in Uganda, the broader East African region, and across Africa, where many university leavers find themselves ill-equipped to face the realities of life after school. Issues such as limited career guidance, lack of personal development resources, and insufficient awareness of societal expectations leave many graduates unprepared for what lies ahead.

According to data from the Uganda Bureau of Statistics (UBOS), the youth unemployment rate in the country stands at approximately 13.3%. Each year, over 400,000 graduates join the job market, all vying for a mere 9,000 available formal employment opportunities. This staggering imbalance creates a climate of intense competition, often resulting in widespread disillusionment, anxiety, and in severe cases, depression – largely due to the absence of structured transition programmes to support young people during this critical phase of life.

While some graduates manage to find employment, launch entrepreneurial ventures, or pursue further academic study, many others struggle with prolonged unemployment or underemployment. This vulnerable group is at risk of turning to detrimental coping mechanisms such as substance abuse, criminal activity, or social withdrawal. One of the root causes of this unpreparedness is the lack of mentorship and real-world guidance in key areas such as workplace conduct, professional ethics, entrepreneurship, leadership, and personal financial management.

In response to this pressing need, the College of Natural Sciences (CoNAS) at Makerere University, through its School of Biosciences, has launched an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students. Spearheaded by Heads of Departments within the School, the seminar is designed to bridge the gap between academic knowledge and the realities of post-university life by equipping students with essential life and career skills.

Dr Kubiriza addressing participants. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Dr Kubiriza addressing participants.

Objectives of the Terminal Seminar

The seminar aims to:

  1. Impart practical knowledge on workplace ethics, professional behaviour, and employability.
  2. Cultivate entrepreneurial thinking and leadership skills, enabling students to create their own opportunities.
  3. Provide strategies for coping with unemployment, social pressure, and the transition period.
  4. Raise awareness about mental health and equip students with tools to manage transition-related stress.
  5. Offer insights into navigating employment in public and private sectors, non-governmental organizations (NGOs), and the global job market.
Prof. Juma Kasozi, Deputy Principal of CoNAS, praised the initiative as a timely and strategic intervention that would equip students with practical skills and emotional resilience for today’s dynamic job market. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Prof. Juma Kasozi, Deputy Principal of CoNAS, praised the initiative as a timely and strategic intervention that would equip students with practical skills and emotional resilience for today’s dynamic job market.

Expected Outcomes

By the end of the programme, students are expected to:

  1. Gain a broader awareness of career and self-employment opportunities.
  2. Develop realistic expectations about the challenges and opportunities post-university.
  3. Experience reduced levels of frustration and vulnerability to harmful behaviours.
  4. Build connections and networks with industry professionals and mentors.
Mr. John Walugembe, Executive Director of the Federation of Small and Medium Sized Enterprises Uganda, highlighted the value of time management and integrity in building a successful career. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Mr. John Walugembe, Executive Director of the Federation of Small and Medium Sized Enterprises Uganda, highlighted the value of time management and integrity in building a successful career.

2025 Terminal Seminar Event Highlights

On 23rd April 2025, CoNAS held its flagship Terminal Seminar for Final Year students set to complete their studies in June 2025. The seminar was coordinated by Dr. Godfrey Kawooya Kubiriza, Head, Department of Zoology, Entomology, and Fisheries Sciences, with support from Dr. Barbra Nerima and Dr. Joel Isanga, both faculty members from the Department of Biochemistry and Systems Biology.

Mr. John Walugembe, Executive Director of the Federation of Small and Medium Sized Enterprises Uganda, highlighted the value of time management and integrity in building a successful career. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Mr. John Walugembe addresses participants.

The event featured a series of empowering sessions, designed to help students navigate the transition from academic life to the professional world. Key topics included career planning, workplace ethics, entrepreneurship, and mental well-being.

A line-up of seasoned professionals and motivational speakers – including Mr. John Walugembe, Executive Director of the Federation of Small and Medium Sized Enterprises Uganda, and Dr. Catherine Mbidde, Ag Director, Makerere University Innovations Pod (UniPod), also Lecturer at the School of Business at CoBAMS, shared their personal journeys, professional insights, and practical advice for thriving beyond the university walls. Other Speakers included Dr. Alex Behakanira from the Department of Mathematics, Makerere University; Mr. Henry Nsubuga, Manager, Counselling and Guidance Centre, Makerere University; Mr. Maurice Ssebisubi, Senior Programme Officer (Fisheries and Environment) at the Embassy of Iceland; and Ms. Sylvia Kajubi, Deputy Principal at the Insurance Training College of Uganda.

Dr. Catherine Mbidde, Acting Director of the Makerere University Innovation Pod, addressed students on leveraging the digital landscape to boost their careers. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Dr. Catherine Mbidde, Acting Director of the Makerere University Innovation Pod, addressed students on leveraging the digital landscape to boost their careers.

Sharing his personal journey, Mr. John Walugembe offered valuable insights to students, emphasizing the critical importance of time management in shaping a successful career. He encouraged them to cultivate patience, resilience, and integrity as they transition from academic life into the professional world.

Mr. Walugembe also urged the students to maintain an open mind when approaching the job market. “You should not confine yourselves to roles within your academic fields. Remain open to exploring a wide range of opportunities that may arise. You need to approach the job market with flexibility,” he advised.

In his remarks, Dr. Alex Behakanira from the Department of Mathematics, Makerere University emphasized the need to remain open-minded and adaptable. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
In his remarks, Dr. Alex Behakanira from the Department of Mathematics, Makerere University emphasized the need to remain open-minded and adaptable.

In addition, he highlighted the dual significance of academic excellence and strong professional networks, noting that good grades can open doors, but relationships and connections often determine how far one can go in their career journey. “The best way to build networks is to improve your value,” he advised.

 Addressing the students on how to leverage the digital landscape to advance their careers, Dr. Catherine Mbidde emphasized the transformative potential of digital tools in shaping future opportunities. She, however, expressed concern over the growing trend of digital tool misuse – platforms that could otherwise be harnessed to explore career paths and unlock job prospects.

Mr. Maurice Ssebisubi, Senior Programme Officer (Fisheries and Environment) at the Embassy of Iceland, also an alumnus of CoNAS sharing his experiences. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Mr. Maurice Ssebisubi, Senior Programme Officer (Fisheries and Environment) at the Embassy of Iceland, also an alumnus of CoNAS sharing his experiences.

Dr. Mbidde urged the students to invest in nurturing their entrepreneurial skills, encouraging them to proactively develop plans, engage in regular self-assessment, and seek out mentors who can offer guidance and support along their professional journeys. She underscored the importance of spiritual grounding, advising students to cultivate a strong relationship with God as a source of direction and resilience in navigating the complexities of their career paths.

Mr. Basiima Collins from UniPod emphasized the importance of a mind-set shift as graduates navigate their career paths. He urged students to actively participate in networking events and foster an entrepreneurial mind-set, stressing that these actions are essential for personal and professional growth. “By embracing opportunities for networking, you can build valuable connections and open doors to new possibilities. Additionally, cultivating an entrepreneurial mind-set allows you to approach challenges with creativity, resilience, and a proactive attitude, which are crucial qualities for success in today’s dynamic job market.”

Dr Joel Isanga from the Department of Biochemistry and Systems Biology at CoNAS moderated the session. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Dr Joel Isanga from the Department of Biochemistry and Systems Biology at CoNAS moderated the session.

Addressing students on the significance of mental health in the journey of career development, Dr. Alex Behakanira emphasized the need to remain open-minded and adaptable. He noted that although job opportunities may appear scarce, the broader landscape of opportunities remains vast and ever-evolving. Dr. Behakanira encouraged students to strive for relevance not only in their professional environments but also within their homes and communities, underlining the importance of being well-rounded individuals. Echoing this sentiment, Mr. Henry Nsubuga stressed the importance of safeguarding one’s mental well-being throughout their career path. He advised students to cultivate a resilient mind-set and to be intentional about steering clear of situations that may lead to emotional distress or depression.

Dr Joel Isanga from the Department of Biochemistry and Systems Biology at CoNAS moderated the session. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Dr. Joel Isanga moderates the session.

 In his remarks, Prof. Juma Kasozi, the Deputy Principal of the College of Natural Sciences (CoNAS) and Head of Academics, expressed his appreciation for the initiative. He commended the effort as a timely and strategic intervention aimed at equipping students with the practical knowledge and emotional resilience necessary to navigate the dynamic and often challenging world of work. Prof. Kasozi emphasized that such initiatives play a crucial role in bridging the gap between academic theory and real-world application. He extended sincere gratitude to the seminar coordinators, praising their foresight and dedication in conceptualizing and organizing the programme.

The Terminal Seminar will be held on an annual basis.

The Dean, School of Biosciences at CoNAS, Prof. Arthur Tugume graced the event. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
The Dean, School of Biosciences at CoNAS, Prof. Arthur Tugume graced the event.
Some of the Final Year students at the seminar. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Some of the Final Year students at the seminar.
Some of the students who participated in the session alongside the organizers and guest speakers. College of Natural Sciences (CoNAS) through School of Biosciences launch of an innovative initiative – the Terminal Seminar/Symposium for Final-Year Students, 23rd April 2025, Room 201/202, JICA Building, Makerere University, Kampala Uganda, East Africa.
Some of the students who participated in the session alongside the organizers and guest speakers.

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Natural Sciences

Novel Chicken Feed with a Cocktail of Bacteriocins and Phytobiotics

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Phyto-Nutra, a healthy, safe, organic, nutritious, antibiotic-free chicken feed formulation for healthy humans by Dr. Alice Nabatanzi, Senior Lecturer, College of Natural Sciences (CoNAS), funded by the Government of Uganda through the Makerere University Research and Innovations Fund (Mak-RIF), Kampala, East Africa.

By Dr. Alice Nabatanzi

Due to the frequent use of antibiotics for prophylaxis and treatment of poultry by Ugandan farmers, antibiotic resistance is on the rise. This has resulted in an outbreak of poultry and human diseases in addition to drug residues in chicken meat being consumed by the majority of Ugandans. Thus, “If you are eating chicken daily then you could be at a high risk.” These residues have spilled into the environment and also contaminated the food for the indigenous free-range chicken which people thought were safer to eat. Interestingly, some consumers think cooking chicken can reduce antibiotic residue levels, but it does not completely remove them. Boiling or frying chicken can cause antibiotic residues to migrate into the cooking liquid, but they don’t guarantee full degradation or elimination.

Looking at the situation at hand, I went back to our indigenous knowledge systems in a quest to formulate an organic poultry feed since natural solutions have proven safer, effective, and sustainable. But remember, to break the cycle or solve any problem, we have to start from the roots and this is by improving the diet for our poultry and ruling out the use of conventional antibiotics. Thus, I went ahead to investigate natural bacteriocins and phytobiotics which I integrated into a special feed for chicken. In addition to the feed is a probiotic solution for gut health.

Phyto-Nutra pellets and their packaging. Dr. Alice Nabatanzi, Senior Lecturer, College of Natural Sciences (CoNAS) with her Phyto-Nutra chicken feed formulation.
Phyto-Nutra pellets and their packaging.

Special thanks to the Government of Uganda through the Makerere University Research and Innovations Fund (Mak-RIF) for funding this research to prototypes.

Dr. Alice Nabatanzi, Senior Lecturer, College of Natural Sciences (CoNAS) with her Phyto-Nutra chicken feed formulation.
Phyto-Nutra pellets and booster in their packaging.

Soon we will commence bulk processing and take the feed to the market but before that, we will scientifically validate the feed through efficiency testing in comparison with imported feeds and Uganda-produced feeds. Furthermore, we will produce different feeds to meet the needs of the different types of chicken (broilers, layers, dual-purpose). This will put our product in a better place on the market and also be able to convince our customers with concrete scientific evidence. In addition, we want to change the mindsets of the majority of Ugandans, especially poultry farmers, and let them understand that Organic poultry farming is the best as it results in quality meat, quality eggs, quality fertilizer, and more returns/ profits.

Phyto-Nutra, a healthy, safe, organic, nutritious, antibiotic-free chicken feed formulation for healthy humans by Dr. Alice Nabatanzi, Senior Lecturer, College of Natural Sciences (CoNAS), funded by the Government of Uganda through the Makerere University Research and Innovations Fund (Mak-RIF), Kampala, East Africa.
Dr. Alice Nabatanzi.

In conclusion, we need to embrace our indigenous systems and remember that once we were healthier without cancer, strange disease conditions, and rampant fertility issues. This is majorly because we consumed clean food as opposed to now where our food is highly contaminated with drug residues.

Dr. Alice Nabatanzi is a Senior Lecturer in the College of Natural Sciences (CoNAS), Makerere University

Mak Editor

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