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AuthorAnnamalai, S.N.
AuthorDas, P.
AuthorThaher, M.I.A.
AuthorAbdul Quadir, M.
AuthorKhan, S.
AuthorMahata, C.
AuthorAl Jabri, H.
Available date2023-06-08T05:46:17Z
Publication Date2021
Publication NameSustainability (Switzerland)
ResourceScopus
URIhttp://dx.doi.org/10.3390/su132313211
URIhttp://hdl.handle.net/10576/44054
AbstractAquafeed accounts for at least 75-90% of aquaculture's operating costs. Traditional aquafeed ingredients such as fishmeal, fish oil, and soybean meal are unsustainable; further, their increasing cost necessities developing alternative feed ingredients. Microalgae-based aquafeed is not only environmentally friendly, but it can also be cost-effective with proper optimization. In addition, the nutrition profile of microalgae is similar to that of many fishes. The digestibility of a feed is one of the most important factors to consider in feed formulation. A highly digestible feed can lower production costs, reduce feed waste, and reduce the risk of eutrophication. This review discusses the digestibility of various nutrients such as protein, lipid, carbohydrate, amino acids, and fatty acids (including omega-3 fatty acids), dry matter, and energy of various microalgae in fish. Other commonly used aquafeed ingredients were also compared to microalgae in terms of nutrient and energy digestibility in fish. The intrinsic characteristics of microalgae, biomass pretreatment, and feed preparation methods are all discussed as factors that contribute to the nutrient and energy digestibility of microalgae in fish. Furthermore, methods for increasing the digestibility of microalgal biomass in fish are suggested. Finally, the review concludes with the challenges and prospects of using microalgae as a fish feed in terms of digestibility. 2021 by the authors. Licensee MDPI, Basel, Switzerland.
SponsorThis research was funded by Qatar National Research Fund (QNRF, a member of Qatar Foundation), grant number MME01-0910-190028.
Languageen
PublisherMDPI
SubjectAquafeed
Digestibility
Lipid
Microalgae
Protein
TitleNutrients and energy digestibility of microalgal biomass for fish feed applications
TypeArticle
Issue Number23
Volume Number13
dc.accessType Open Access


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