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Fishmeal Replacement by Full-Fat and Defatted Hermetia illucens Prepupae Meal in the Diet of Gilthead Seabream ( Sparus aurata )

Author

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  • Ioannis T. Karapanagiotidis

    (Aquaculture Laboratory, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Fytoko Street, 38446 Volos, Greece)

  • Marina C. Neofytou

    (Aquaculture Laboratory, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Fytoko Street, 38446 Volos, Greece)

  • Adamantia Asimaki

    (Aquaculture Laboratory, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Fytoko Street, 38446 Volos, Greece)

  • Evanthia Daskalopoulou

    (Aquaculture Laboratory, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Fytoko Street, 38446 Volos, Greece)

  • Pier Psofakis

    (Aquaculture Laboratory, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Fytoko Street, 38446 Volos, Greece)

  • Eleni Mente

    (Aquaculture Laboratory, Department of Ichthyology and Aquatic Environment, School of Agricultural Sciences, University of Thessaly, Fytoko Street, 38446 Volos, Greece
    Laboratory of Ichthyology, Culture and Pathology of Aquatic Animals, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece)

  • Christos I. Rumbos

    (Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Fytoko Street, 38446 Volos, Greece)

  • Christos G. Athanassiou

    (Laboratory of Entomology and Agricultural Zoology, Department of Agriculture, Crop Production and Rural Environment, School of Agricultural Sciences, University of Thessaly, Fytoko Street, 38446 Volos, Greece)

Abstract

Insect proteins are considered as suitable low environmental impact alternatives to fishmeal for sustainable aquafeeds. Among the different insect species, Hermetia illucens has attracted research and industrial interest due to its ability to grow well on organic side streams, its high protein content and favorable amino acid profiles. Its lipid content although high is characterized by a lack of EPA and DHA that are essential to fish nutrition and thus a defatted form of Hermetia meal might be of better use in fish diets. Hence, two feeding trials were conducted to investigate the effects of the partial fishmeal replacement by increasing levels of a full-fat (up to 276 g/kg) and a defatted (up to 174 g/kg) H. illucens meal on feed intake, growth, feed utilization and nutrient compositions of gilthead seabream ( Sparus aurata ). Results showed that both the fat content and the inclusion level of H. illucens meal are critical for the success of fishmeal replacement in the diets of S. aurata as they strongly affect feed consumption. A lower palatability of H. illucens meal was observed when included at high dietary levels with the defatted form being more readily accepted by fish. The defatted H. illucens meal is more suitable than the full-fat type to replace fishmeal, with a dietary level of about 81–104 g/kg supporting the highest feed consumption, the highest growth, an unaffected proximate composition and a better feed utilization by S. aurata .

Suggested Citation

  • Ioannis T. Karapanagiotidis & Marina C. Neofytou & Adamantia Asimaki & Evanthia Daskalopoulou & Pier Psofakis & Eleni Mente & Christos I. Rumbos & Christos G. Athanassiou, 2023. "Fishmeal Replacement by Full-Fat and Defatted Hermetia illucens Prepupae Meal in the Diet of Gilthead Seabream ( Sparus aurata )," Sustainability, MDPI, vol. 15(1), pages 1-17, January.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:1:p:786-:d:1022368
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    References listed on IDEAS

    as
    1. Marianna Oteri & Ambra Rita Di Rosa & Vittorio Lo Presti & Filippo Giarratana & Giovanni Toscano & Biagina Chiofalo, 2021. "Black Soldier Fly Larvae Meal as Alternative to Fish Meal for Aquaculture Feed," Sustainability, MDPI, vol. 13(10), pages 1-17, May.
    2. Daniela P. Rodrigues & Olga M. C. C. Ameixa & José Antonio Vázquez & Ricardo Calado, 2022. "Improving the Lipid Profile of Black Soldier Fly ( Hermetia illucens ) Larvae for Marine Aquafeeds: Current State of Knowledge," Sustainability, MDPI, vol. 14(11), pages 1-14, May.
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