Physiological responses of Siberian sturgeon (Acipenser baerii) juveniles fed on full-fat insect-based diet in an aquaponic system

Over the last years, the potential use of Black Soldier Fly meal (BSF) as a new and sustainable aquafeed ingredient has been largely explored in several fish species. However, only fragmentary information is available about the use of BSF meal-based diets in sturgeon nutrition. In consideration of a circular economy concept and a more sustainable aquaculture development, the present research represents the first comprehensive multidisciplinary study on the physiological effects of a BSF diet during sturgeon culture in an aquaponic system. Siberian sturgeon (Acipenser baerii) juveniles were fed over a 60-days feeding trial on a control diet (Hi0) and a diet containing 50% of full-fat BSF meal respect to fish meal (Hi50). Physiological responses of fish were investigated using several analytical approaches, such as gas chromatography-mass spectrometry, histology, Fourier Transformed Infrared Spectroscopy (FTIR), microbiome sequencing and Real-time PCR. While aquaponic systems performed optimally during the trial, Hi50 group fish showed lower diet acceptance that resulted in growth and survival reduction, a decrease in hepatic lipids and glycogen content (FTIR), a higher hepatic hsp70.1 gene expression and a worsening in gut histological morphometric parameters. The low feed acceptance showed by Hi50 group sturgeon highlighted the necessity to improve the palatability of BSF-based diet designed for sturgeon culture.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:11

Enthalten in:

Scientific reports - 11(2021), 1 vom: 13. Jan., Seite 1057

Sprache:

Englisch

Beteiligte Personen:

Zarantoniello, Matteo [VerfasserIn]
Randazzo, Basilio [VerfasserIn]
Nozzi, Valentina [VerfasserIn]
Truzzi, Cristina [VerfasserIn]
Giorgini, Elisabetta [VerfasserIn]
Cardinaletti, Gloriana [VerfasserIn]
Freddi, Lorenzo [VerfasserIn]
Ratti, Stefano [VerfasserIn]
Girolametti, Federico [VerfasserIn]
Osimani, Andrea [VerfasserIn]
Notarstefano, Valentina [VerfasserIn]
Milanović, Vesna [VerfasserIn]
Riolo, Paola [VerfasserIn]
Isidoro, Nunzio [VerfasserIn]
Tulli, Francesca [VerfasserIn]
Gioacchini, Giorgia [VerfasserIn]
Olivotto, Ike [VerfasserIn]

Links:

Volltext

Themen:

Fatty Acids
Journal Article
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 12.08.2021

Date Revised 12.08.2021

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41598-020-80379-x

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM320051056