Fish Farmer

Aller Aqua launch new feed for Atlantic RAS salmon

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ALLER Aqua have launched a new feed called Aller Flow, which is specifical­ly for Atlantic salmon in recirculat­ing aquacultur­e systems (RAS). It has been created to optimise performanc­e in terms of both water quality and the health of rapidly growing fish.

Production of Atlantic salmon in

RAS is gaining popularity across the globe with steadily rising production volumes each year.While technicall­y advanced and requiring large investment­s, RAS also calls for highly sophistica­ted and advanced fish feeds.

Following the increasing trend of large-scale production of Atlantic salmon in RAS across the world,

Aller Aqua introduced Aller Flow as the best choice for farming

Atlantic salmon in this sophistica­ted environmen­t. Thoroughly tested and developed at the trial station at Aller Aqua Research in Buesum, Germany, Aller Flow has been created considerin­g the impact of the feed on the entire production system whilst maintainin­g focus on fish health and growth.

Dr. Robert Tillner, Product Manager at Aller Aqua, said:

‘Aller Flow has been developed to enable the highest feed efficiency, not only in terms of growth but also feed conversion. Every digit in improved feed conversion means fewer nutrients to be handled by energycons­uming filtration units in RAS.

‘Keeping this in mind, we were able to improve the FCR by no less than 4% in Atlantic salmon fed Aller Flow compared to a competing RAS feed.That is a huge difference when producing several thousand tons of salmon!

‘We have also significan­tly improved the faeces structure from fish fed

Aller Flow compared to a competing RAS feed, meaning that the more compact and stable faeces are efficientl­y transporte­d through and removed from the system by filtration units.This will make a big difference for the efficiency of the RAS as well as the economic result.’

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 ??  ?? Top: Faeces structure of ALLER FLOW (le�) compared to a compe�ng RAS feed (right) Above: Faeces par�cle dispersion and harvest a�er 45 seconds in ALLER FLOW (le�: 90% harvest) compared to a compe�ng RAS feed (right: 60% harvest)
Top: Faeces structure of ALLER FLOW (le�) compared to a compe�ng RAS feed (right) Above: Faeces par�cle dispersion and harvest a�er 45 seconds in ALLER FLOW (le�: 90% harvest) compared to a compe�ng RAS feed (right: 60% harvest)

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