Acronym STRATEGY
Category
Aquaculture
Title The influence of the feeding strategy on nutrition and lice grazing efficiency in sea roe biscuits 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 Lauris Boissonnot Coordinator email lauris@aqua-kompetanse.no
Coordinator institution
NA
Institutions involved
Akvaplan-niva - Akvaplan-niva AS (Norway) ,
GIFAS - Gildeskål Forskningsstasjon (Norway) ,
NA - HaVet AS
(Norway) ,
NA - Namdal Rensefisk AS (Norway) ,
NR - Norwegian Computing Center (Norway) ,
Start year 2021 End year 2023 Funding (€) € 620,000 Website https://www.fhf.no/prosjekter/prosjektbasen/901693/ Summary Clean fish are used today as part of the overall strategy for the prevention and control of salmon lice (Lepeophtheirus salmonis ) and more recently scotland lice (Caligus elongatus ) in Norwegian salmon farming. Fish welfare in roe biscuits has received increasing attention in recent years. Norwegian salmon farmers, in close collaboration with fish health services and researchers, work continuously to identify factors that can improve conditions for roe biscuits in Norwegian breeding cages.
In commercial, open cages, feed availability varies due to various factors (e.g. potential competition with salmon, pellet expulsion by electricity, etc.). As of today, there is a lack of applied knowledge about whether different feeding regimes cover the roe cracker's nutritional needs and ensure that a good nutritional status is maintained after release at sea. This is crucial with regard to the adaptation of feeding strategies that can ensure that roe crackers mainly eat their own feed that is adapted to the assumed nutritional needs.
Main objective:
To make recommendations on follow-up of the nutritional status of roe bream and adaptation of feeding strategies (amount, frequency, location, etc.) that satisfy the nutritional needs of farmed roe bream after release at sea, and which contribute to good lice grazing efficiency.
Sub-goal:
1. To assess different feeding strategies with both pellet and feed block, and how the different strategies fulfill the roe biscuit's nutritional needs and affect the lice grazing efficiency.
2. To estimate the digestion time of lice and feed (pelleted and/or compressed block) at different sea temperatures in roe crackers.
3. To develop tools that can be used to assess the nutritional status of roe biscuits on the edge of the cage.
4. To prepare a handbook for adapting feeding strategies that meet the nutritional needs of roe crackers and that ensure good fish welfare and increased lice grazing.
Keywords
Diets;
Lump fish;
Feed composition;
Open sea aquaculture;
Fish;
Cage aquaculture;
Salmon;
Parasite;
Marine Region
76
Not associated to marine areas
0
Marine Region Map
