The freshwater macroalga Oedogonium intermedium can meet the nutritional requirements of the herbivorous fish Ancistrus cirrhosus

Vucko, Matthew J., Cole, Andrew J., Moorhead, Jonathan A., Pit, Josiah, and de Nys, Rocky (2017) The freshwater macroalga Oedogonium intermedium can meet the nutritional requirements of the herbivorous fish Ancistrus cirrhosus. Algal Research-biomass Biofuels And Bioproducts, 27. pp. 21-31.

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Abstract

The macroalga Oedogonium intermedium has a diverse elemental profile, high energy potential, high lipid content, a high proportion of essential amino acids and a total concentration of protein with the potential to meet the nutritional requirements of herbivorous fishes. The aim of this study was to assess growth, condition, colouration and reproductive output in an herbivorous ornamental fish. The catfish Ancistrus cirrhosus was fed one of three pelletised experimental feeds, Oedogonium, a formulated commercial feed and a 50: 50 mix of the two, over a 10 month trial. After 10 months, fish that were fed exclusively on Oedogonium had equivalent growth rates, body condition, colouration, fecundity and fertilisation rates compared to those fed the commercial and mixed feeds. The absence of any major differences of these characteristics between feeds, especially between Oedogonium and the commercial feed, demonstrates the viability of Oedogonium as a feed, or significant feed ingredient, for this herbivorous fish. As such, linking the cultivation of Oedogonium with the production of herbivorous fish may provide an ideal application for Oedogonium.

Item ID: 51486
Item Type: Article (Refereed Research - C1)
Keywords: catfish, amino acid, reproduction, aquaculture, fishmeal, sustainable feed
ISSN: 2211-9264
Date Deposited: 08 Nov 2017 07:31
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070401 Aquaculture @ 100%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830199 Fisheries - Aquaculture not elsewhere classified @ 50%
96 ENVIRONMENT > 9609 Land and Water Management > 960912 Urban and Industrial Water Management @ 25%
96 ENVIRONMENT > 9606 Environmental and Natural Resource Evaluation > 960611 Urban Water Evaluation (incl. Water Quality) @ 25%
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