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Review

The Application of Single-Cell Ingredients in Aquaculture Feeds—A Review

1
Institute of Aquaculture, University of Stirling, Stirling FK9 4LA, UK
2
Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
3
Aquaculture and Fisheries Group (AFI), Wageningen University and Research, 6700 HB Wageningen, The Netherlands
*
Author to whom correspondence should be addressed.
Received: 1 June 2020 / Revised: 26 June 2020 / Accepted: 30 June 2020 / Published: 16 July 2020
(This article belongs to the Special Issue New Sources of Proteins for Aquaculture Feeds)
Single-cell ingredients (SCI) are a relatively broad class of materials that encompasses bacterial, fungal (yeast), microalgal-derived products or the combination of all three microbial groups into microbial bioflocs and aggregates. In this review we focus on those dried and processed single-cell organisms used as potential ingredients for aqua-feeds where the microorganisms are considered non-viable and are used primarily to provide protein, lipids or specific nutritional components. Among the SCI, there is a generalised dichotomy in terms of their use as either single-cell protein (SCP) resources or single-cell oil (SCO) resources, with SCO products being those oleaginous products containing 200 g/kg or more of lipids, whereas those products considered as SCP resources tend to contain more than 300 g/kg of protein (on a dry basis). Both SCP and SCO are now widely being used as protein/amino acid sources, omega-3 sources and sources of bioactive molecules in the diets of several species, with the current range of both these ingredient groups being considerable and growing. However, the different array of products becoming available in the market, how they are produced and processed has also resulted in different nutritional qualities in those products. In assessing this variation among the products and the application of the various types of SCI, we have taken the approach of evaluating their use against a set of standardised evaluation criteria based around key nutritional response parameters and how these criteria have been applied against salmonids, shrimp, tilapia and marine fish species. View Full-Text
Keywords: raw materials; bacteria; microalgae; fungal; yeast; biofloc; protein; oils raw materials; bacteria; microalgae; fungal; yeast; biofloc; protein; oils
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MDPI and ACS Style

Glencross, B.D.; Huyben, D.; Schrama, J.W. The Application of Single-Cell Ingredients in Aquaculture Feeds—A Review. Fishes 2020, 5, 22. https://0-doi-org.brum.beds.ac.uk/10.3390/fishes5030022

AMA Style

Glencross BD, Huyben D, Schrama JW. The Application of Single-Cell Ingredients in Aquaculture Feeds—A Review. Fishes. 2020; 5(3):22. https://0-doi-org.brum.beds.ac.uk/10.3390/fishes5030022

Chicago/Turabian Style

Glencross, Brett D., David Huyben, and Johan W. Schrama 2020. "The Application of Single-Cell Ingredients in Aquaculture Feeds—A Review" Fishes 5, no. 3: 22. https://0-doi-org.brum.beds.ac.uk/10.3390/fishes5030022

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