Suitability of novel algal biomass as fish feed: accumulation and distribution of omega-3 long-chain polyunsaturated fatty acid in Zebrafish

Byreddy, Avinesh R., Yoganantharjah, Prusothman, Gupta, Adarsha, Gibert, Yann and Puri, Munish 2018, Suitability of novel algal biomass as fish feed: accumulation and distribution of omega-3 long-chain polyunsaturated fatty acid in Zebrafish, Applied biochemistry and biotechnology, doi: 10.1007/s12010-018-2906-0.

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Title Suitability of novel algal biomass as fish feed: accumulation and distribution of omega-3 long-chain polyunsaturated fatty acid in Zebrafish
Author(s) Byreddy, Avinesh R.
Yoganantharjah, Prusothman
Gupta, Adarsha
Gibert, Yann
Puri, MunishORCID iD for Puri, Munish orcid.org/0000-0003-2469-3326
Journal name Applied biochemistry and biotechnology
Total pages 12
Publisher Springer
Place of publication New York, N.Y.
Publication date 2018-10-22
ISSN 0273-2289
1559-0291
Keyword(s) Bioactives
DHA
Feed
Microalgae
Schizochytrium
Summary A 28-day feeding experiment with formulated feed using docosahexaenoic acid (DHA)-rich whole cells of freeze-dried marine microalgae Schizochytrium sp. to understand the distribution of fatty acids in a laboratory model zebrafish was conducted. Three feeds, commercial feed, 50:50 feed (50% commercial and 50% algae), and pure algae, were investigated. All feeds were consumed by zebrafish and showed optimal growth and weight gain with a survival rate of 100%. Lipids were extracted from four different tissues, brain, liver, muscle, and blood, to understand the distribution of fatty acids with respect to the feed. Maximum lipid was observed in zebrafish fed with 50:50 feed in all tissue samples. An increasing concentration of fatty acids was observed upon increasing the experimental time. Algae feed supported the DHA accumulation in all tissue samples compared to other feeds and resulted in an overall increment of polyunsaturated fatty acid content. To understand the role of fatty acids during zebrafish embryogenesis, eggs were collected at the end of the experiment and fatty acid content was analyzed. However, no significant difference was observed in fatty acid composition of embryos fed with algae. This provides a base for the understanding of fatty acid distribution in zebrafish with commercial and algae feeds and support the utilization of Schizochytrium biomass as a potential replacement for fishmeal.
Notes In Press
Language eng
DOI 10.1007/s12010-018-2906-0
Field of Research 06 Biological Sciences
10 Technology
08 Information And Computing Sciences
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2018, Springer Science+Business Media
Persistent URL http://hdl.handle.net/10536/DRO/DU:30114718

Document type: Journal Article
Collection: School of Medicine
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