Length-Weight Relationship and Condition Factor of African Catfish (Clarias gariepinus Burchell, 1822) Fed Black Soldier Fly (Hermetia illucens Linnaeus, 1758) Larvae-Based Diets

  • General Beven Mundida Jaramogi Oginga Odinga University of Science and Technology
  • Julius Otieno Manyala Jaramogi Oginga Odinga University of Science and Technology
  • James Madzimure Africa University
  • Kenneth Rono Jaramogi Oginga Odinga University of Science and Technology
Keywords: Clarias gariepinus, Length-Weight Relationship, Condition Factor, Dietary Composition, Formulated Diets, Correlation Coefficient, Allometric Growth, Black Soldier Fly Larvae
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Abstract

The length-weight relationship and condition factor of Clarias gariepinus fed on black soldier fly-based diets were studied for twelve weeks in winter. Five isonitrogenous and isolipidic experimental diets were formulated to contain different levels of black soldier fly larvae (0%, 25%, 50%, 75% and 100%). The meal with 0% BSFLM was used as a control. A randomised complete block design was used, and a total of 600 (0.46 ± 0.02g) unsexed Clarias gariepinus fingerling samples were randomly selected and stocked at a rate of 40 fish per plastic tank. The total length and weight were taken once every fortnight for the estimation of the length-weight relationship and condition factor. Length-weight relationship (LWR) was described by the equation: W = a Lb. The value of the regression coefficient obtained b from the WLR was 0.98, 0.98, 098, 0.97, 0.90, and 0.90, respectively. There was a significant correlation between length and weight, while the condition factor computed for Clarias gariepinus was 1.00, 1.00, 0.99, 0.99, and 0.95, which indicated good health condition during the experiment, and it indicates an isometric growth, which is desirable for fish in a fish farm. The experiment concluded that the cultured C. gariepinus using black soldier fly larvae-based diets were in good condition and healthy, and all the diets will be suitable for the commercial production of C. gariepinus.

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Published
26 December, 2025
How to Cite
Mundida, G., Manyala, J., Madzimure, J., & Rono, K. (2025). Length-Weight Relationship and Condition Factor of African Catfish (Clarias gariepinus Burchell, 1822) Fed Black Soldier Fly (Hermetia illucens Linnaeus, 1758) Larvae-Based Diets. East African Journal of Agriculture and Biotechnology, 8(2), 569-582. https://doi.org/10.37284/eajab.8.2.4238