Acronym NA
Category
Aquaculture
Title Digestive processes and gut health in lipid metabolism of Atlantic salmon a molecular aspects of low fishmeal diets Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Vegard Denstadli Coordinator email NA
Coordinator institution
NA
Institutions involved
NA
Start year 2013 End year 2020 Funding (€) € 299,158 Website https://prosjektbanken.forskningsradet.no/en/project/FORISS/223108?Kilde=FORISS&distribution=Ar&chart=bar&calcType=funding&Sprak=no&sortBy=date&sortOrder=desc&resultCount=30&offset=360&ProgAkt.3=NAERINGSPH-N%C3%A6rings-phd Summary Use of plant feed ingredients which can replace fish meal and fish oil, is a must to strengthen sustainability and for further increase in fish cultivation. This is particularly relevant for carnivorous fish, like salmon, for which plant-based feed stuff are not a natural part of the diet and often result in decreased utilization of the nutrients and slower growth. Little is known about what key components the fish meal contains which are important for the immune system, lipid metabolism and optimal gut f unction, and which are lacking or less abundant in the plant raw materials. We do see that plant based feed ingredients often disturb turnover of lipid metabolites. However their interactions and the optimal dietary levels have not been investigated and w ill be the focus in this PhD work.
The aquaculture industry has in the last years had problems with a digestive disturbance called lipid malabsorption syndrome (LMS). This is characterized by floating faeces, pale and swollen intestines. This recurring syndrome worries both the fish farmers and the feed producers and requires considerable resources to follow up. This PhD work will investigate the molecular responses in the intestine and liver regarding effects of supplementation of the lipid metabolites on lipid absorption and metabolism. The possible role of these in LMS will be given particular attention. By this we hope to discover, by using QPCR, the key factors that cause poor performance, gut health and LMS in salmon given fish feed high in plant ingredients.
The outcome of this project will have direct relevance for optimizing the diets in BioMar salmon feed portfolio. To understand the effects and requirements of key factors in the gut digestion which will result in better lipid utilization of the feeds and a more stable performance of the fish. This will have a positive effect on the production cost of the feed for BioMar and the again for the cost of the feed for the fish farmers.
Keywords
Fish oil replacement;
Fish health;
Fish meal replacement;
Salmon;
Diets;
Fish;
Feed composition;
Marine Region
76
Not associated to marine areas
0
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