Acronym NA
Category
Aquaculture
Title Utvikling av ny standard for sedering og slakt av oppdrettslaks - Development of a new standard for sedation and slaughter of farmed salmon 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 Bjørn Roth Coordinator email bjorn.roth@nofima.no
Coordinator institution
NA
Institutions involved
Akvaplan-niva - Akvaplan-niva AS (Norway) ,
IMR - Institute of Marine Research (Norway) ,
NA - MOWI ASA (Norway) ,
Start year 2011 End year 2014 Funding (€) € 746,573 Website https://www.fhf.no/prosjekter/prosjektbasen/900601/ Summary In the slaughter regulations, it is possible to use different methods of sedating salmon before stunning to reduce stress and ensure good fish welfare. Through several projects, a connection has been documented between good fish welfare and the quality of the end product. Research is underway on welfare related to pumping and penetrating salmon in transport and at slaughter. However, there is a need for more knowledge related to the use of sedation before anesthesia and slaughter and something this project aims to uncover.
The project was originally applied for funding from the Regional Research Fund West and Marine Harvest, and it can now be implemented by obtaining funding together with FHF.
Goal: to develop a new welfare and quality standard for procedures associated with the slaughter of salmon. An optimized sedation process in a commercial sedation tank with combined cooling and controlled gas supply will improve quality, extend the shelf life of the end product and ensure sound fish welfare. A basic research part and a more practical work with experiments and evaluations in commercial facilities where the focus is on temperature adaptation, water quality / water treatment and quality of the end product will be carried out with regard to obtaining scientific documentation that can form the basis for future legislation and recommendations on best practices for the industry.
Sub-goal
• Sub-goal 1: Quantifying tolerance for variable water quality
Under controlled conditions Fish will be exposed to different water qualities (with simultaneously varied levels of CO₂, O₂, NH4 + and pH) to detect physiological and respiratory limit values where primary and secondary stress responses are triggered, hormonal or genetic.
• Sub-goal 2: Reduction of stress by combined gas and temperature sedation
Uncover the extent to which the addition of gas (CO₂, O₂ and N₂), the fish's own excretion of CO₂ and consumption of O₂, as well as lowering the temperature within given tolerance ranges can positively reduce the fish's ability to respond to given stressors such as low oxygen and physical-mechanical load. This is to be able to quantify welfare gains in all stages from transport, via pumping, sedation, anesthesia and killing.
• Sub-goal 3: Optimize live cooling during transport
Carry out comparable studies of fish during closed vs. closed conditions. open refrigerated transport and study the significance of this during slaughter.
• Sub-goal 4: Cooling during slaughter - Effects on quality
Optimized cooling and gas conditions given from other sub-goals will be tested on a commercial scale where total welfare and quality are examined.
Keywords
Fish products;
Fish;
Slaughtering systems ;
Salmon;
Animal welfare;
Fish quality;
Marine Region
76
Not associated to marine areas
0
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