Acronym ERN-SAMSPILL
Category
Aquaculture
Title Interaction between nutrients and importance for salmon health and quality 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 Bente Ruyter Coordinator email bente.ruyter@nofima.no
Coordinator institution
SINTEF - SINTEF (Norway)
Institutions involved
NA - BioMar (Norway) ,
NA - Grieg Seafood Finnmark AS (Norway) ,
IMR - Institute of Marine Research (Norway) ,
NA - MOWI ASA (Norway) ,
INRAE - National Research Institute for Agriculture, Food and Environment (France) ,
NMBU - Norwegian University of Life Sciences (Norway) ,
NA - SalMar ASA (Norway) ,
NA - Salmon Group AS (Norway) ,
SKRET - Skretting Aquaculture Research Centre AS (Norway) ,
UGOT - University of Gothenburg (Sweden) ,
Start year 2021 End year 2024 Funding (€) € 2,776,900 Website https://www.fhf.no/prosjekter/prosjektbasen/901656/ Summary The composition of the feed for the salmon has changed dramatically since the turn of the millennium, in that fish oil and fish meal have largely been replaced by vegetable oils and plant protein. Although the feeds are optimized according to known nutritional needs, the changes have resulted in a reduced content of components that can affect the salmon's performance and health. The decrease in fishmeal has, among other things, led to lower levels of marine phospholipids, cholesterol, B vitamins and vitamin A. Lower levels of fish oil in the feed have led to a reduced content of saturated fatty acids and the unsaturated fatty acids EPA and DHA, and a higher level of vegetable oil fatty acids. Despite the available knowledge about nutritional requirements for the most important nutrients in isolation, there is a lack of understanding of the importance of interaction effects between different nutrients in the feed for the salmon's health. The aim of this project is to close this knowledge gap so that the industry can improve feed recipes to strengthen growth, fish health and muscle quality.
Main objective:
To obtain knowledge about how interactions between fat and fatty acids, zinc and cholesterol in the feed affect the fish's health and robustness in different parts of the production cycle.
Sub-goals:
• To obtain new knowledge about how different levels of zinc and omega-3 fatty acids in the diet interact and affect membrane lipid composition and function of the intestine, including absorption and transport of nutrients, as well as skin and shell development and mineralization of shells and skeleton (work package 1).
• Carrying out feeding trials in two production systems, flow-through and recycling, provides knowledge about the importance of EPA and zinc for skin health and intestinal function ( work package 1).
• Carrying out feeding trials with salmon in seawater provides increased knowledge about how saturated fatty acids and cholesterol in the feed affect health, performance and quality ( work package 2).
• To build up new knowledge about how saturated, monounsaturated and polyunsaturated fatty acids affect fat transport in the intestine and the barrier function of the intestine and skin ( work package 1 and 2).
• Carrying out feeding trials with salmon in cages at sea (from 1.5 kg to slaughter size of 5 kg) provides increased knowledge of how fat levels and zinc in the feed interact and affect health, performance and quality ( work package 3).
• Doing short-term experiments with time-series withdrawals after feeding will provide knowledge about uptake mechanisms for zinc in the intestine of salmon, and how the level of fat in the feed affects this (work package 3).
• To build up knowledge about the effect of commercial level EPA+DHA in the feed (~2% of the feed), compared to 3.5% EPA+DHA on health, performance and quality ( work package 3).
Keywords
Cage aquaculture;
Land-based aquaculture;
Open sea aquaculture;
Fish biology;
Recirculating systems;
Fish health;
Feed composition;
Fish;
Salmon;
Marine Region
76
Not associated to marine areas
0
Marine Region Map
