Seaweed as a protein source for mono-gastric livestock

Angell, Alex R., Angell, Simon F., de Nys, Rocky, and Paul, Nicholas A. (2016) Seaweed as a protein source for mono-gastric livestock. Trends in Food Science and Technology, 54. pp. 74-84.

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Background: Seaweeds are often cited as alternative protein sources for livestock due to their global distribution, nutritional profile and independence from terrestrial agricultural resources.

Scope and approach: Here, we critically appraise the literature and quantitatively assess seaweeds as a protein source in livestock feeds by assembling a database of amino acid data for 121 seaweed species and comparing the quality and concentration of protein to 'traditional' protein sources (soybean meal and fishmeal) and then benchmarking the seaweeds against the amino acid requirements of mono gastric livestock (chicken, swine and fish).

Key findings and conclusions: The quality of protein (% of essential amino acids in total amino acids) of many seaweeds is similar to, if not better than, traditional protein sources. However, seaweeds without exception have substantially lower concentrations of total essential amino acids, methionine and lysine (on a whole biomass basis, % dw) than traditional protein sources. Correspondingly, seaweeds contain an insufficient concentration of protein, and specifically insufficient essential amino acids, to meet the requirements of most mono-gastric livestock in the whole seaweed form. Consequently, the concentration or extraction of protein from seaweeds will be the most important goal in their development as an alternative source of protein for mono-gastric livestock.

Item ID: 45653
Item Type: Article (Research - C1)
ISSN: 1879-3053
Funders: Australian Renewable Energy Agency (ARENA), Australian Government's Cooperative Research Centre Scheme (CRCS)
Projects and Grants: ARENA 002369, CRSC DP109602
Date Deposited: 07 Sep 2016 07:38
FoR Codes: 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300501 Aquaculture @ 50%
31 BIOLOGICAL SCIENCES > 3108 Plant biology > 310801 Phycology (incl. marine grasses) @ 25%
31 BIOLOGICAL SCIENCES > 3106 Industrial biotechnology > 310602 Bioprocessing, bioproduction and bioproducts @ 25%
SEO Codes: 82 PLANT PRODUCTION AND PLANT PRIMARY PRODUCTS > 8203 Industrial Crops > 820399 Industrial Crops not elsewhere classified @ 100%
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