By: Hallstein Baarset
Waister has developed an innovative method for mortalities drying in aquaculture. This method is a substitute for ensilage, which is the most common way of treating mortalities today.
By using a Waister 15 drying machine, mortalities disposal may be reduced by 85 % compared to ensilage. This is achieved without adding formic acid. In this way, the method represents a substantial improvement for employees’ safety by elimination of hazards related to application of formic acid.
Waister has used the method on fish from the smallest fish of a few grams up to 4.5 kg. It works well on all kinds of fish – and has even been applied to salmon and trout with high fat content. For these fish species an additive, being wood chips or dried spent grain, is used to ensure a stable processing.
The development and verification of the method has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement N° 773330.
The official market launch of Waister 15 for mortalities happened at Aqua-Nor in Trondheim August 2021.
Check out all more about this innovative method to re-use fish mortalities in this video: