ORIGINAL PAPER
Black soldier fly larvae (Hermetia illucens) meal as a sustainable
fishmeal replacement: growth, water quality, and economic
profitability in tilapia (Oreochromis sp.) fingerling culture
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1
Universidad Autónoma de Querétaro, Facultad de Ingeniería, División de investigación y posgrado,
76265 El Marques, Querétaro, Mexico
2
Universidad Autónoma de Querétaro, Facultad de Ingeniería, Cuerpo académico de Bioingeniería básica y aplicada,
76010, Santiago de Querétaro, Mexico
3
Universidad Autónoma de Querétaro, Facultad de Química, Posgrado en Ciencia y Tecnología de los Alimentos,
76010, Santiago de Querétaro, Mexico
Publication date: 2026-06-10
KEYWORDS
TOPICS
ABSTRACT
The present study evaluated the suitability of black soldier fly
(Hermetia illucens) larvae (BSFL) as a fishmeal substitute in the diets of tilapia
fingerlings (Oreochromis sp.) reared in a recirculating aquaculture system,
with particular emphasis on growth performance, water quality, and economic
profitability. Three isoproteic diets were formulated by replacing fishmeal at
levels of 0, 50, and 75% (D0, D50, and D75, respectively). Growth parameters,
feed utilisation efficiency, and water quality indicators were monitored during a
45-day feeding trial, and the profitability of the diets was assessed. Significant
differences in growth and feed conversion were observed between treatments
(P < 0.05), with comparable performance obtained in fish fed the D0 and D75
diets. Metabolic rate analysis further suggested improved protein utilisation
in diets containing insect meal. Moreover, the D50 diet significantly reduced
ammonium concentrations in the recirculating water system (P < 0.05). From an
economic perspective, the inclusion of BSFL meal resulted in higher profitability
compared with conventional fishmeal-based feeds. Overall, the results confirm
that BSFL meal represents a practical and sustainable alternative to fishmeal in
intensive tilapia fingerling production, supporting both production efficiency and
environmental sustainability.
CONFLICT OF INTEREST
The authors declare that there is no conflict of interest.
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