Research Article

Black soldier fly (Hermetia illucens) larvae meal improves growth performance, feed utilization, amino acids profile, and economic benefits of Nile tilapia (Oreochromis niloticus, L.)

Volume: 5 Number: 3 July 1, 2022
EN

Black soldier fly (Hermetia illucens) larvae meal improves growth performance, feed utilization, amino acids profile, and economic benefits of Nile tilapia (Oreochromis niloticus, L.)

Abstract

This study investigated the effect of replacing soybean meal (SBM) with black soldier fly larvae meal (BSFLM) on the growth performance, feed utilization, carcass body composition, and amino acids profile of Nile tilapia (Oreochromis niloticus). Three isonitrogenous (30% crude protein) diets containing BSFLM in varying proportions of 0% (BSFLM0), 50% (BSFLM50), and 100% (BSFLM100), were formulated to replace SBM. A commercial diet (COMM0) sourced from the local market was used as a positive control. Male sex-reversed O. niloticus juveniles of a mean weight 20.88 ±0.16 g were stocked in 12 cages each at a density of 12.5 fish m-3. Fish were hand-fed at 5% (28 days), 3% (54 days), and 2.5% (84 days) of the body weight twice a day (1000 hrs and 1600 hrs). Significant differences (P < 0.05) were found in the final body weight, body weight gain (BWG), specific growth rate (SGR), feed conversion ratio (FCR), survival rate, and condition factor (K). The best growth performance and feed utilization was recorded in fish fed on BSFLM100. The different diets had significant effects on the body composition and amino acid profiles of the experimental fish (P<0.05). Fish fed on BSFLM100 exhibited highest values for phenylalanine, threonine, Isoleucine, lysine, proline, and glutamic acid amino acids. The partial enterprise budget analysis indicated that replacing SBM with BSFLM at 50% and 100% reduced the cost of production compared to the control diet (BSFLM0) and commercial diet (COMM0). The study demonstrated that BSFLM is a cost-effective alternative to SBM in the diets of Oreochromis niloticus hence can replace soybean meal up to 100% without negative effect on growth and carcass body composition.

Keywords

Supporting Institution

This work was carried out with the financial support from ICIPE through the Bioinnovate Africa program funded by Swedish International Development Cooperation Agency (SIDA) grant contribution

Project Number

51050076

Thanks

We acknowledge Biobuu Kenya Ltd in Kilifi through Mr. Kigen Compton for provision of the defatted black soldier fly larvae used in this study. The Special thanks to Kenya Marine and Fisheries Research Institute (KMFRI) Sagana technicians; Elijah Gichana and Joel Gatagwu for technical support during sampling and sample analysis. The Mercantiles: Mr. Johnson Makori and Mr. Kiragu Mutegi are also appreciated for their assistance in daily feeding and monthly sampling of the fish. The International Centre of Insect Physiology and Ecology (ICIPE) is acknowledged for their technical assistance in proximate analysis and amino acid profiling. Last but not least, KMFRI and Tanzania Fisheries Research Institute (TAFIRI) are acknowledged for providing permission to authors to participate in this study.

References

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Details

Primary Language

English

Subjects

Hydrobiology

Journal Section

Research Article

Publication Date

July 1, 2022

Submission Date

April 26, 2022

Acceptance Date

June 11, 2022

Published in Issue

Year 1970 Volume: 5 Number: 3

APA
Shati, S., Opiyo, M., Nairuti, R., Shoko, A., Munyi, F., & Ogello, E. (2022). Black soldier fly (Hermetia illucens) larvae meal improves growth performance, feed utilization, amino acids profile, and economic benefits of Nile tilapia (Oreochromis niloticus, L.). Aquatic Research, 5(3), 238-249. https://doi.org/10.3153/AR22023

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