The first insight into black soldier fly meal in brown trout nutrition as an environmentally sustainable fish meal replacement

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cris.virtual.author-orcid0000-0001-8734-724X
cris.virtual.author-orcid0000-0002-3344-1094
cris.virtual.author-orcid0000-0001-6006-117X
cris.virtual.author-orcid0000-0003-0715-0223
cris.virtual.author-orcid0000-0002-7182-6905
cris.virtual.author-orcid0000-0002-6606-7975
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cris.virtualsource.author-orcid1da983b0-605e-4368-b9d6-b560779a3cdc
cris.virtualsource.author-orcid8a0c5f30-f25c-446b-8092-83cb2446757a
cris.virtualsource.author-orcidaa495cd9-8e77-4c18-890a-9f4da0d598bc
cris.virtualsource.author-orcid0c22ceb5-e5c6-4f5d-a0fd-8ec91a16efa9
cris.virtualsource.author-orcid325904ea-6775-4d8a-b846-0104d9ec20ca
cris.virtualsource.author-orcidf5683666-5139-4173-800e-278b2903d57b
dc.abstract.enInsect meals are considered among the most promising feed materials in fish nutrition due to their sustainability and possibility of fish meal replacement. The present study is the first application of full-fat black soldier fly larvae (BSFL) meal in brown trout (Salmo trutta m. fario) diets. Two experiments were performed on 240 brown trout fingerlings (average body mass 4.85 g) distributed into four groups (12 tanks for the growth performance experiment, 10 fish/tank; and 12 metabolic tanks for the digestibility test, 10 fish/tank). The experimental group design was conducted as follows: control diet, with no BSFL and 35% fish meal, and experimental diets: BSFL5 – with 5% BSFL full-fat meal and 32.5% fish meal; BSFL10 – with 10% BSFL full-fat meal and 30% fish meal; and BSFL20 – with 20% BSFL full-fat meal and 25% fish meal. No effects were recorded in the case of growth performance and feed utilization parameters. The environmental sustainability of the usage of insect meals in fish diets was proven – due to the lower fish meal inclusion, the fish-in-fish-out ratio decreased by 31% in BSFL20. In the case of the viscerosomatic index, increases in BSFL5 and BSFL20 were reported. In all experimental groups, decreases in hepatosomatic index values were observed. Crude protein digestibility decreased in BSFL5 and BSFL20, while crude fat digestibility decreased only in the BSFL20 group. The effect of including BSFL full-fat meal in a brown trout diet on serum biochemical parameters was reported. The aspartate transaminase concentration increased in BSFL10 and BSFL20, while the gamma-glutamyl transpeptidase values decreased in BSFL20. In the case of total cholesterol, higher values were observed in BSFL10 and BSFL20. The albumin content decreased in the BSFL20 group, while globulin showed the highest values in the control group. The microbiota composition was not affected by insect meal inclusion. In conclusion, the results of the present study showed the high potential of BSFL full-fat meal application of up to 20% in a brown trout diet.
dc.affiliationWydział Medycyny Weterynaryjnej i Nauk o Zwierzętach
dc.affiliation.instituteKatedra Żywienia Zwierząt
dc.affiliation.instituteKatedra Fizjologii, Biochemii i Biostruktury Zwierząt
dc.affiliation.instituteKatedra Zoologii
dc.contributor.authorMikołajczak, Z.
dc.contributor.authorRawski, Mateusz
dc.contributor.authorMazurkiewicz, Jan
dc.contributor.authorKierończyk, Bartosz
dc.contributor.authorKołodziejski, Paweł
dc.contributor.authorPruszyńska-Oszmałek, Ewa
dc.contributor.authorJózefiak, Damian
dc.date.access2025-12-22
dc.date.accessioned2025-12-29T08:25:52Z
dc.date.available2025-12-29T08:25:52Z
dc.date.copyright2022-04-23
dc.date.issued2022
dc.description.accesstimeat_publication
dc.description.bibliographybibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if3,6
dc.description.number5
dc.description.points200
dc.description.versionfinal_published
dc.description.volume16
dc.identifier.doi10.1016/j.animal.2022.100516
dc.identifier.eissn1751-732X
dc.identifier.issn1751-7311
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/6527
dc.identifier.weblinkhttps://www.sciencedirect.com/science/article/pii/S1751731122000672
dc.languageen
dc.relation.ispartofAnimal
dc.relation.pagesart. 100516
dc.rightsCC-BY-NC-ND
dc.sciencecloudnosend
dc.share.typeOPEN_JOURNAL
dc.subject.enfish nutrition
dc.subject.enHermetia illucens
dc.subject.eninsect meal
dc.subject.enSalmo trutta m. fario
dc.subject.ensustainable aquaculture
dc.titleThe first insight into black soldier fly meal in brown trout nutrition as an environmentally sustainable fish meal replacement
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.issue5
oaire.citation.volume16