Mr Sahya Maulu

Mr Sahya Maulu

School of Biological and Marine Sciences (Faculty of Science and Engineering)



Ph.D. Student - Biological Sciences (Fish Health and Nutrition) 

Research topic: Investigating the potential utilization of insect (Black soldier fly) meal as an alternative protein source in Tilapia feed

Director of Studies: Dr. Daniel Merrifield

2nd Supervisor: Dr. Mark Rawling

Insects are a promising source of protein for fish diets in aquaculture to replace conventional sources such as fish meal due to sustainability issues. This research will investigate the nutrition value of insect meals for omnivorous freshwater fish such as tilapia. In particular, black soldier fly (BSF: Hermetia illucens) meal will be used to replace conventional protein sources in the diets of the fish. The aim is to improve dietary sustainability whilst also promoting good fish health, robustness and growth performance. A series of experiments will be undertaken to elucidate the value of insect meals in this context.


MSc. Fisheries Science (Aquaculture), Nanjing Agricultural University (China P.R)

BSc. Fisheries & Aquaculture, Copperbelt University (Zambia)

Professional membership

World Aquaculture Society (WAS)

European Aquaculture Society (EAS)

Global Youth Biodiversity Network (GYBN)

American Fisheries Society (AFS)

Roles on external bodies

Peer reviewer of research manuscripts for the following journals:

  • Aquaculture Research
  • Reviews in Aquaculture 
  • Frontiers in Sustainable Food Systems 
  • Environmental Science and Pollution Research 




Maulu, S., Langi, S., Hasimuna, O.J.H., Missinhoun, D., Munganga, B.P., Hampuwo, B.M., Ndakalimwe et al., 2022. Recent advances in the utilization of insects as protein sources in the diets of aquatic animals: A review. Animal nutrition.

Khalil, H.S., Maulu, S., Verdegem, M. & Abdel-Tawwab, M., 2022. Embracing nanotechnology for selenium application in aquafeeds. Rev. in Aqu.

Siavwapa, S., Hasimuna, O.H., Maulu, S. & Monde, C. 2022. A comparative analysis of the anaesthetic effect of sodium bicarbonate (NaHCO3) on male and female three spotted tilapia (Oreochromis andersonii). Journal of Applied Animal Research.

Maulu, S., Nawanzi, K., Abdel-Tawwab, M. & Khalil, H.S., 2021. Fish nutritional value as an approach to children's nutrition. Frontiers in Nutrition. 

Maulu, S., Liang, H., Ji, K, Ren, M., Yu, H. & Huang, D., 2021. Dietary Clostridium autoethanogenum protein modulates intestinal absorption, antioxidant status, and immune response in GIFT (Oreochromis niloticus) juveniles. Aquaculture Research. 

Maulu, S., Hasimuna, O.J., Mphande, J. & Munang’andu., 2021. Prevention and control of streptococcosis in tilapia culture: A systematic review. Journal of Aquatic Animal Health. 

Maulu, S., Liang, H., Ge, X., Yu, H., Donghua, H., Ji, K. & Ren, M., 2021. Effect of dietary Clostridium autoethanogenum protein on growth, body composition, plasma parameters and hepatic genes expression related to growth and AMPK/TOR/PI3K signaling pathway of GIFT (Oreochromis niloticus). Animal Feed Science & Technology. 

Yang, Q., Liang, H., Maulu, S., Ji, K., Yu, H., Ge, X., Ren, M., Xie, J., & Xi, B., 2021. Dietary phosphorus affects growth, glucolipid metabolism, antioxidant activity and immune status of juvenile blunt snout bream (Megalobrama amblycephala). Animal Feed Science & Technology 

Maulu, S., Hasimuna, O.J., Mutale, B., Mphande, J., & Siankwilimba, E., 2021. Enhancing the role of rural agricultural extension programs in poverty alleviation: A review. Cogent food & agriculture, 7, 1886663. 

Huang, D., Maulu, S., Ren, M., Liang, H., Ge, X., Ji, K., Yu, H., 2021. Dietary lysine levels improved antioxidant capacity and immunity via TOR and p33 MAPK signaling pathway of Grass carp, Ctenopharyngodon idella fry. Frontiers in Immunology. https://doi:10.3389/fimmu.2021.635015 

Muhala, V., Chicombo, T.F., Macate, I.E., Guimarães-Costa, A., Gundana, H., Malichocho, C., Hasimuna, O.J., Remédio, A., Maulu, S., Cuamba, L., Bessa-Silva, A.R. & Sampaio, I., 2021. Climate Change in Fisheries and Aquaculture: Analysis of the Impact Caused by Idai and Kenneth Cyclones in Mozambique. Front. Sustain. Food Syst. 5:714187. https://doi:10.3389/fsufs.2021.714187 

Ali, A., El Sherif, S., Abd Alla, J., Maulu, S., Tantawy, A. A., Soliman, M. F. K., … Khalil, H. S., 2021. Morphometric, Histochemical, and Ultrastructural Analysis of the Reproductive System and Spermatogenic Stages of Male Blue Crab (Callinectessapidus Rathbun, 1896). Journal of Marine Science and Engineering, 9(10), 1105. https://doi:10.3390/jmse9101105  

Kord, M.I., Maulu, S., Srour, T.M., Omar, E.A., Farag, A.A., Nour, A.A.M., Hasimuna, O.J., Abdel-Tawwab, M. & Khalil, H.S., 2021. Impacts of water additives on water quality, production efficiency, intestinal morphology, gut microbiota, and immunological responses of Nile tilapia fingerlings under a zero-water-exchange system. Aquaculture.  

Hasimuna, O.J., Chibesa, M., Ellender, B., & Maulu, S., 2021. Variability of selected heavy metals in surface sediments and ecological risks in the Solwezi and Kifubwa Rivers, North-western province, Zambia. Scientific African 12(2008): e00822. 

Maulu, S., Haambiya, L.H., Monde C., Hasimuna, O.J., Musuka, C.G., Makorwa, H.T., Munganga, B.P., Phiri, J.K, & Nsekanabo, J.D., 2021. Climate change effects on aquaculture production: Sustainability implications, mitigation, and adaptations. Frontiers in Sustainable Food Systems.

Liang, H., Maulu, S., Ji, K, Ge, X. & Ren, M., 2020. Functional analysis and localization of facilitative glucose transporter 4 (GLUT4) with the delay action in blood glucose adjustment in blunt snout bream (Megalobrama amblycephala). Frontiers in Physiology.

Huang, D., Liang, H., Ren, M., Ge, X., Ji, K., Yu, H. & Maulu, S., 2020. Effects of dietary lysine levels on growth performance, whole body composition and gene expression levels related to glycometabolism and lipid metabolism in juvenile grass carp, Ctenopharyngodon idellus. Aquaculture 

Hasimuna, O.J., Monde, C., Bbole, I., Maulu, S. and Chibesa, M., 2020. The efficacy of Sodium bicarbonate as an anaesthetic agent in Green head tilapia (Oreochromis macrochir) juveniles. Scientific African. 

Maulu, S., Hasimuna, O.J., Monde, C. & Mweemba, M., 2020. An assessment of post-harvest fish losses and preservation practices in Siavonga district, Southern Zambia. Fisheries & Aquatic Sciences 

Hasimuna, O.J., Maulu, S., Monde, C. & Mweemba, M., 2019. Assessment of cage aquaculture production in Zambia: A case of challenges and opportunities in Siavonga district. Egyptian Journal of Aquatic Research.

Maulu, S., Munganga, B.P., Hasimuna, O.J., Haambiya, L., & Seemani, B., 2019. A Review of the Science and Technology Developments in Zambia’s Aquaculture Industry. Journal of Aquaculture Research and Development, 10, 1-6.

Other Publications

Oral presentations

Presented the following papers at the Aquaculture Africa Conference (AFRAQ2021), 25-28 March, 2022, Alexandria, Egypt.

Sahya Maulu, Marc Verdegem, Hala Saber Khalil, Diaa Al-Kenawy, Rodrigue Yossa, Alaa Badr-Eldin, Arjen Roem, Johan Schrama “Growth efficiency, apparent nutrient digestibility, and natural food intake in Nile tilapia oreochromis niloticus fed diets with different levels of bio-available phosphorus”. 

Sahya Maulu, Hualiang Liang, Xianping Ge, Heng Yu, Dongyu Huang, Ji Ke, Mingchun Ren, Haifeng Mi “Effect of dietary clostridium autoethanogenum protein on growth, body composition, plasma parameters, and hepatic genes expression related to growth and AMPK/TOR/PI3K signaling pathway of the genetically improved farmed tilapia (GIFT) juveniles”