Biomass yield, morphometric traits, and nutrient composition of black soldier fly larvae cultivated using different food wastes
2025
Ogabidu, O.A., | Yusuf, A. | Folorunso, L.A. | Idowu, O.O | Jibril, M.A. | Usman, Y.O. | Bernard, M. | Yelwa, J.M
There is increased focus on Black Soldier Fly Larvae (BSFL) as a new source of protein in livestock and aquaculture nutrition as well as sustainable and cost-effective waste management tool. Thus, this study evaluated the biomass yield, larvae length, proximate analysis, and mineral content of BSFL grown on varied food waste substrates. The BSF eggs were incubated and resulting larvae were reared in three substrates. Rearing Substrate A (RSA) had rotten sweet orange, banana, water melon and soybean curd in a ratio (1:1:1:1), rearing substrate B (RSB) had brewers spent grain and soyabean curd at a ratio of 3:1.While rearing substrate C (RSC) consists of a mixture of rotten sweet orange, banana,, water melon and soyabean curd all mixed at a ratio of (1:1:1:3). The experiment was a completely randomized design and resulting data was analyzed using descriptive statistics. Weights of ten BSFL samples revealed that the highest fresh (0.442±0.25 g) and dried (0.133±0.08 g) weights were obtained on RSA. The larvae cultured on RSA were the longest with a mean length of 1.87±0.12 cm with 47.78±0.37% crude protein and 26.31±0.36% lipid content. The calcium (Ca) content was highest and significantly different in BSFL obtained RSA (111.39±1.09 mg/kg) as compared to RSC (66.29±0.87 mg/kg) and RSB (34.85±0.57 mg/kg). larvae reared using the different substrates have different proximate composition and BSFL contains high concentration of calcium that makes them suitable for incorporation in poultry and aquaculture feed.
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