Cited by 130Aquaculture Nutrition and GrowthInsect Utilization and EffectsFisheries and Aquaculture Studies

The introduction of insect meal into fish diet: The first economic analysis on European sea bass farming

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Arru, Brunella, Furesi, Roberto, Gasco, Laura, Madau, Fabio, Pulina, Pietro·2019·Sustainability

Abstract

The economic and environmental sustainability of aquaculture depends significantly on the nature and quality of the fish feed used. One of the main criticisms of aquaculture is the need to use significant amounts of fish meal, and other marine protein sources, in such feed. Unfortunately, the availability of the oceanic resources, typically used to produce fish feed, cannot be utilized indefinitely to cover the worldwide feed demand caused by ever-increasing aquaculture production. In light of these considerations, this study estimates how aquaculture farm economic outcomes can change by introducing insect meal into the diet of cultivated fish. Several possible economic effects are simulated, based on various scenarios, with different percentages of insect flour in the feed and varying meal prices using a case study of a specialized off-shore sea bass farm in Italy. The findings indicate that the introduction of insect meal—composed of Tenebrio molitor—would increase feeding costs due to the high market prices of this flour and its less convenient feed conversion ratio than that of fish meal. Therefore, the expected environmental benefits of using this highly promising insect meal in fish feed do not align with the current economic interests of the aquaculture industry. To our knowledge, this is the first study to investigate this theme, and it must be noted that our findings cannot be generalized widely because a specific case study was used. Nevertheless, our findings suggest that efforts should be made—at least at the farm level—to find profitable ways to encourage the introduction of this attractive alternative to guarantee both economic and environmental sustainability in the near future.

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  • Microalgae-based feed costs less than fish meal (1.5$/kg) and insect-based feed (3-5.9$/kg) but higher than plant-based feed (0.64$/kg).

    “In comparison, microalgae-based feed costs lesser than the fish meal (1.5$/kg) and insect-based feed (3-5.9$/kg)but higher than the plant-based feed (0.64$/kg) (Arru et al., 2019;Indexmundi, 2021;Sarker et al., 2020a).”

    From Potential of microalgae as a sustainable feed ingredient for aquaculture (2021) · cites this paper as Arru et al., 2019

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Research works printed but not linked: 4

  1. Yin, R.K. Case Study Research: Design and Methods; SAGE Publications: Thousand Oaks, CA, USA, 2013; ISBN 978-1-4833-2224-7.
  2. Glasser, B.; Strauss, A. The Discovery of Grounded Theory: Strategies for Qualitative Research; Adline De Gruyter: Hawthorne, NY, USA, 1967.
  3. Wilson, R.P. Protein and aminoacids. In Fish Nutrition; Academic Press: Cambridge, MA, USA, 2002; ISBN 978-0-08-049492-0.
  4. Hénault-Ethier, L.; Dussault, M.; Cabrera, P.; Lefebvre, B.; Taillefer, S.; Deschamps, M.-H.; Vandenberg, G. Les insectes au service de l'humain pour la gestion des résidus organiques. Vecteur Environ. 2017, 50, 46-53.

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Authors
Arru, B., Furesi, R., Gasco, L., Madau, F., & Pulina, P.
Affiliations
  • University of Sassari (IT)
  • University of Turin (IT)
Corresponding author
  • Arru, Brunella
  • Madau, Fabio
Venue
Sustainability
Publisher
MDPI AG
Published
2019-03-21
Volume
11
Issue
6
Pages
1697
ISSN
2071-1050 (ISSN-L)
OpenAlex
W2923330433
Cited by
125
References
52
Citations by year
2026: 7 · 2025: 15 · 2024: 18 · 2023: 20 · 2022: 26 · 2021: 26 · 2020: 12 · 2019: 1
FWCI
14.47
Type
journal article
Language
en
Open access
Locations
  • Sustainability (publishedVersion, cc-by)
  • UnissResearch (Università degli Studi di Sassari) (submittedVersion, cc-by-nc-nd)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Insect Utilization and Effects
  • Life Sciences › Agricultural and Biological Sciences › General Agricultural and Biological Sciences › Fisheries and Aquaculture Studies
Keywords
insect meal, fish feed, Dicentrarchus labrax, aquaculture economics, Tenebrio molitor, fish meal replacement, feed conversion ratio, feed cost, alternative protein sources

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