Cited by 224Animal Nutrition and PhysiologyAlgal biology and biofuel productionAquaculture Nutrition and Growth

Microalgal-based feed: Promising alternative feedstocks for livestock and poultry production

Open access
Saadaoui, Imen, Rasheed, Rihab, Aguilar, Ana, Cherif, Maroua, Al Jabri, Hareb, Sayadi, Sami, Manning, Schonna R.·2021·Journal of Animal Science and Biotechnology

Abstract

There is an immediate need to identify alternative sources of high-nutrient feedstocks for domestic livestock production and poultry, not only to support growing food demands but also to produce microalgae-source functional foods with multiple health benefits. Various species of microalgae and cyanobacteria are used to supplement existing feedstocks. In this review, microalgae have been defined as a potential feedstock for domestic animals due to their abundance of proteins, carbohydrates, lipids, minerals, vitamins, and other high-value products. Additionally, the positive physiological effects on products of animals fed with microalgal biomass have been compiled and recommendations are listed to enhance the assimilation of biomolecules in ruminant and nonruminant animals, which possess differing digestive systems. Furthermore, the role of microalgae as prebiotics is also discussed. With regards to large scale cultivation of microalgae for use as feed, many economic trade-offs must be considered such as the selection of strains with desired nutritional properties, cultivation systems, and steps for downstream processing. These factors are highlighted with further investigations needed to reduce the overall costs of cultivation. Finally, this review outlines the pros and cons of utilizing microalgae as a supplementary feedstock for poultry and cattle, existing cultivation strategies, and the economics of large-scale microalgal production.

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Crossref · 10.1186/s40104-021-00593-z

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  • Using whole microalgal biomass minimises the need for extensive processing and purification, resulting in lower production costs and reduced environmental impact.

    “using the whole biomass minimises the need for extensive processing and purification steps, resulting in lower production costs and reduced environmental impact.”

    From Microalgae Bioactives for Functional Food Innovation and Health Promotion (2025) · cites this paper as [102]

    In “Cultivation and production of biomass” (page unavailable), the paper identifies processing and extraction as major contributors to microalgal production costs. Its “Economic feasibility” section distinguishes unprocessed whole biomass from purified products. These passages support the cost rationale in general, but do not establish that using whole biomass reduces production costs or environmental impact. (LLM, conf=0.74)

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Research works printed but not linked: 2

  1. [35]HemaiswaryaS, Raja R, Kumar RR, Ganesan V, Anbazhagan C. Microalgae: Asustainable feed source for aquaculture. World J Microbiol Biotechnol. 2011;27: 1737–46.
  2. [61]Borowitzka LJ Borowitzka MA β-Carotene (Provitamin A) Production with Algae. Biotechnol Vitamins, Pigment Growth Factors. Elsevier Applied Biotechnology Series 1989 Dordrecht Springer 5 26

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Authors
Saadaoui, I., Rasheed, R., Aguilar, A., Cherif, M., Al Jabri, H., Sayadi, S., & Manning, S. R.
Affiliations
  • Qatar University (QA)
  • The University of Texas at Austin (US)
Corresponding author
Saadaoui, Imen
Venue
Journal of Animal Science and Biotechnology
Published
2021-06-17
Volume
12
Issue
1
Pages
76-76
ISSN
  • 1674-9782 (ISSN-L)
  • 2049-1891
OpenAlex
W3169381946
Cited by
223
References
148
Citations by year
2026: 39 · 2025: 63 · 2024: 55 · 2023: 43 · 2022: 19 · 2021: 4
FWCI
3.28
Type
journal article
Language
en
Open access
Locations
  • Journal of Animal Science and Biotechnology/Journal of animal science and biotechnology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Qatar University QSpace (Qatar University) (submittedVersion)
  • Qatar National Library (cc-by)
Funders
  • QNRF (NPRP8-1087-1-207)
  • Qatar University
Topics
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Aquaculture Nutrition and Growth
Keywords
microalgae, microalgae feed, animal feed, poultry feed, cyanobacteria, microalgal biomass, prebiotics, ruminants, non-ruminants, microalgae cultivation, downstream processing, feed economics, functional foods, animal nutrition

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