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Impact of feed supplementation with different omega-3 rich microalgae species on enrichment of eggs of laying hens.
MedLine Citation:
PMID:  23993584     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Four different omega-3 rich autotrophic microalgae, Phaeodactylum tricornutum, Nannochloropsis oculata, Isochrysis galbana and Chlorella fusca, were supplemented to the diet of laying hens in order to increase the level of omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA) in egg yolk. The microalgae were supplemented in two doses: 125mg and 250mg extra n-3 PUFA per 100g feed. Supplementing these microalgae resulted in increased but different n-3 LC-PUFA levels in egg yolk, mainly docosahexaenoic acid enrichment. Only supplementation of Chlorella gave rise to mainly α-linolenic acid enrichment. The highest efficiency of n-3 LC-PUFA enrichment was obtained by supplementation of Phaeodactylum and Isochrysis. Furthermore, yolk colour shifted from yellow to a more intense red colour with supplementation of Phaeodactylum, Nannochloropsis and Isochrysis, due to transfer of carotenoids from microalgae to eggs. This study shows that besides Nannochloropsis other microalgae offer an alternative to current sources for enrichment of hen eggs.
Authors:
Charlotte Lemahieu; Charlotte Bruneel; Romina Termote-Verhalle; Koenraad Muylaert; Johan Buyse; Imogen Foubert
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Publication Detail:
Type:  Journal Article     Date:  2013-06-28
Journal Detail:
Title:  Food chemistry     Volume:  141     ISSN:  0308-8146     ISO Abbreviation:  Food Chem     Publication Date:  2013 Dec 
Date Detail:
Created Date:  2013-09-02     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7702639     Medline TA:  Food Chem     Country:  England    
Other Details:
Languages:  eng     Pagination:  4051-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2013 Elsevier Ltd. All rights reserved.
Affiliation:
Research Unit Food and Lipids, KU Leuven Kulak, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium; Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium. Electronic address: charlotte.lemahieu@kuleuven-kulak.be.
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