Black soldier fly (Hermetia illucens, L.) larvae improves growth performance, feed efficiency and economic returns of Nile tilapia (Oreochromis niloticus, L.) fry

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dc.contributor.authorSamwel Mchele Limbu
dc.contributor.authorAmon Paul Shoko
dc.contributor.authorEusebia Ernest Ulotu
dc.contributor.authorSiwema Amran Luvanga
dc.contributor.authorFridah Mukiri Munyi
dc.contributor.authorJohn Obedy John
dc.contributor.authorMary Adhiambo Opiyo
dc.date.accessioned2022-08-05T17:25:27Z
dc.date.available2022-08-05T17:25:27Z
dc.date.issued2022-05-23
dc.description.abstractInsects have been proposed as potential alternative animal protein sources to replace fishmeal (FM), which is expensive and has limited availability for fish feed formulation. However, studies on the effects of replacing FM with black soldier fly (Hermetia illucens) larvae (BSF-L) on growth performance of Nile tilapia (Oreochromis niloticus) fry, water quality and economic benefits are currently limited. This study determined the effects of replacing 100% FM, 75% FM, 50% FM, 25% FM and 0% FM with cheap BSF-L meal, hereafter referred to as BSF-L0, BSF-L25, BSF-L50, BSF-L75 and BSF-L100 diets, respectively for rearing all-male Nile tilapia fry produced by YY technology. The study further determined the optimum percentage of BSF-L meal for maximum growth of Nile tilapia fry. A total of 2400 visually healthy Nile tilapia fry weighing 0.001 g were randomly stocked into 20 plastic tanks (120 fry per tank, four replicates per treatment) and fed the BSF-L diets for 12 weeks. The BSF-L75 diet increased significantly specific growth rate, total weight gain, Zihler's index of fry and nitrate in the culture water but reduced feed conversion ratio of diet and total suspended solids in the culture water (p < 0.05). Feeding the Nile tilapia fry with BSF-L50 diet increased significantly hepatosomatic index (p < 0.05). The diets with BSF-L75 and BSF-L100 reduced significantly the incidence cost by 31.97% and 28.77% (p < 0.05), and increased profit index by 3.97 and 3.44%, respectively. The optimum percentage of BSF-L inclusion required for maximum growth performance of Nile tilapia fry was estimated as 81% to 84% based on polynomial analysis. Taken together, feeding Nile tilapia fry with diets containing 81% to 84% BSF-L meal improved growth performance. The BSF-L75 diet enhanced feed efficiency and had no deleterious effect on the liver and intestines. Meanwhile, it improved nitrate concentration for increased natural productivity. Incorporating 75% BSF-L meal in diets for Nile tilapia fry reduced 30% of feed cost leading to 4% higher economic returns.en_US
dc.description.sponsorshipICIPE through the Bioinnovate AfricaPhase II program through the project "Using black soldier fly larvae as an environmentally sustainable source of affordable protein for chicken and fish feed" (Grant number 51050076) funded by Swedish International Development Cooperation Agency (SIDA)en_US
dc.identifier.citationSamwel Mchele Limbu, Amon Paul Shoko, Eusebia Ernest Ulotu, Siwema Amran Luvanga, Fridah Mukiri Munyi, John Obedy John, and Mary Adhiambo Opiyo (2022). Black soldier fly (Hermetia illucens, L.) larvae improves growth performance, feed efficiency and economic returns of Nile tilapia (Oreochromis niloticus, L.) fry. Aquaculture, Fish and Fisheries, 2(3): 167-178. https://doi.org/10.1002/aff2.48en_US
dc.identifier.doihttps://doi.org/10.1002/aff2.48
dc.identifier.urihttp://hdl.handle.net/20.500.11810/5881
dc.language.isoenen_US
dc.publisherWileyen_US
dc.subjectblack soldier fly larvae mealen_US
dc.subjecteconomic benefitsen_US
dc.subjectfeed conversion ratioen_US
dc.subjectNile tilapia fryen_US
dc.subjectsustainable aquacultureen_US
dc.subjectwater quality parametersen_US
dc.titleBlack soldier fly (Hermetia illucens, L.) larvae improves growth performance, feed efficiency and economic returns of Nile tilapia (Oreochromis niloticus, L.) fryen_US
dc.typeJournal Article, Peer Revieweden_US
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