Acronym OPTi feed
Category
Aquaculture
Title Optimum feeding of mountain gilts in salmon cages 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 Øystein Sæle Coordinator email oystein.saele@hi.no
Coordinator institution
IMR - Institute of Marine Research (Norway)
Institutions involved
NOFIMA - Norwegian Institute of Food, Fisheries and Aquaculture Research (Norway) ,
UiB - University of Bergen (Norway) ,
Start year 2021 End year 2023 Funding (€) € 739,300 Website https://www.fhf.no/prosjekter/prosjektbasen/901694/ Summary Rensefisk has long been established as a good control measure against salmon lice. In 2019, approx. 43 million farmed roe biscuits, approx. 0.7 million farmed rock gilt and around 17 million wild-caught wrasse. But the gilt does not fare so well in the salmon cage. According to the Norwegian Food Safety Authority's ""National monitoring campaign 2018/2019"", it is assumed that 40% of farmed gilthead gilts die during a salmon production period. Among the biggest causes of mortality are disease, poor quality from the supplier, damage from handling and no clear cause. Several of these causes can be directly or indirectly influenced by poor nutrition. There are a number of reports of weight loss in wrasse, which is an obvious consequence of insufficient nutrient intake.
Main objective:
To document the effect of nutrition and feeding strategy on fish welfare and lice grazing, during the entire production cycle (sea phase) of salmon.
Subgoals:
• To compose feed based on experiences from experiments with rearing and breeding fish feed (work package 1).
• To record and analyze preferences for the composition and form of the feed, with and without salmon in cages (work package 2).
• To map and describe behavior at feeding stations, with and without salmon in cages (work package 3).
• To record and analyze behavior at feeding stations and energy status in large cages during the salmon production cycle (work package 4). A more detailed description of nutritional status includes organ indices (liver + the rest of the viscera (entrails) with visceral fat) as well as intestinal filling. Brain and intestinal tissue samples will also be taken on RNA plates (the preservative) for in-depth analysis of individuals with mapped behavior around feeding stations.
Keywords
Feed composition;
Fish;
Genetic;
Wrasse;
Marine Region
76
Not associated to marine areas
0
Marine Region Map
