FISH MEAL REPLACEMENT BY MICROBIALLY FERMENTED BLACK SOLDIER FLY (Hermetia illucens) LARVAE MEAL IN DIETS FOR JUVENILE MIXED SPECIES TILAPIA (Oreochromis niloticus/O. aureus)

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dc.contributor.advisorGarcía-Ortega, Armando
dc.contributor.authorDye, Matthew
dc.contributor.departmentTropical Conservation Biology & Environmental Science
dc.date.accessioned2024-01-25T19:41:01Z
dc.date.available2024-01-25T19:41:01Z
dc.date.issued2023-12
dc.description.degreeM.S.
dc.identifier.urihttps://hdl.handle.net/10790/42734
dc.subjectAgriculture
dc.subjectAquatic sciences
dc.subjectEnvironmental science
dc.subjectaquaculture
dc.subjectaquafeeds
dc.subjectblack soldier fly larvae (BSFL)
dc.subjectfish meal
dc.subjectinsect meal
dc.subjectkōji fermentation
dc.titleFISH MEAL REPLACEMENT BY MICROBIALLY FERMENTED BLACK SOLDIER FLY (Hermetia illucens) LARVAE MEAL IN DIETS FOR JUVENILE MIXED SPECIES TILAPIA (Oreochromis niloticus/O. aureus)
dc.typeThesis
dcterms.abstractOne of the primary objectives of sustainable aquaculture is to reduce the use of marine resources like fish meal (FM) and fish oil (FO) traditionally utilized in aquafeeds. A promising alternative protein source used for aquafeeds is the protein meal from the black soldier fly larvae (BSFL), though, presently, full replacement of protein from FM with insect meals has not been achieved. This study aimed to elucidate the potential of kōji (Aspergillus oryzae) fermented black soldier fly larvae (fBSFL) meal to replace FM at cumulative substitution levels in diets for juvenile mixed sp. tilapia (Oreochromis niloticus/O. aureus). A Control diet (FM-100) based on commercially produced FM was used as a reference and three experimental diets were prepared to replace FM with fBSFL meal at levels of 10% (INS-LOW), 25% (INS-MED), and 50% (INS-HIGH), respectively. All diets were formulated to contain 45% crude protein and 10% crude lipid. A fish feeding trial in a recirculating aquaculture system was performed. The diets were fed to triplicate groups of 10 fish (0.5 ± 0.0 g) twice a day for 57 days. Final fish weight, specific growth rate (SGR), and survival of mixed sp. tilapia fed the experimental diets showed no significant differences (P > 0.05) compared to the Control diet. There were significant correlations (P < 0.05) in total omega-3 (n-3) fatty acids (FA) between diets and fish whole body FA composition. The results of this study suggest that the replacement of up to 50% of FM with fBSFL in diets for juvenile mixed sp. tilapia does not significantly affect fish growth, SGR or survival rate. Further studies should evaluate the refinement and digestibility of fBSFL proteins used in this study to optimize feeds for juvenile mixed sp. tilapia.
dcterms.extent70 pages
dcterms.languageen
dcterms.publisherUniversity of Hawaii at Hilo
dcterms.rightsAll UHH dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
dcterms.typeText
local.identifier.alturihttp://dissertations.umi.com/hilo.hawaii:10244

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