Feed

We are committed to growing healthy and nutritious King salmon in a sustainable way. Feed is specially formulated by salmon nutritionists to provide enough energy for our salmon to thrive whilst also supplying all the essential nutrients for healthy growth.

Feed decision factors

Feeding salmon is one of the most important operations on our farms, with the main objective being to match the nutritional requirements of our unique species, whilst achieving maximum growth and minimising feed wastage. 

 

Fish health & welfare

King salmon require a unique diet

Environmental impact

Sustainable sources, minimal waste and seabed impact

Cost & availability of raw materials

Feed accounts for approximately 50% of our overall fish production cost

Safe and wholesome

We work closely with our feed suppliers and independent scientists to ensure a balanced diet, we know exactly what goes into each recipe which means that when you purchase our King salmon, you can be confident it has consumed a safe, nutritious, sustainable and traceable diet.

What do we feed our salmon?

The formulation of our feed changes to meet the dietary requirements of our King salmon throughout their lifecycle.

What we leave out

Equally as important as what is in our feed, is what we leave out. Feed does not contain ingredients of genetically modified/transgenic origin, antibiotics, growth hormones/promoters or artificial colouring.

The important role of astaxanthin

Astaxanthin is a naturally occurring, powerful antioxidant and micro-nutrient that forms a vital part of our King salmon’s diet. It is required for egg and fry development and overall fish health.

Astaxanthin is a carotenoid that is stored in salmon muscle tissue, resulting in the appealing and vibrant orange colour of our King salmon. Amazingly, a white fish like cod would not change colour if its diet contained astaxanthin. We do not add ‘dye’ to our salmon feed or salmon products.

Astaxanthin is so crucial for development that salmon pass it onto their eggs, this is what gives them their vibrant orange colour.

Read more about the benefits of astaxanthin to human and pet health here.

How we feed our salmon

Our teams are specially trained to observe and monitor our feeding process. Automatic feeders are used to dispense several meals each day – more often when salmon are smaller, and less often as they grow. Underwater cameras closely monitor appetite and activity during each feed, to ensure our salmon receive just the right amount with minimal waste.

Fish in/fish out

Our aim is to produce more fish per kilogram than we use in our feed. The fish oil and fish protein components of our feed are sourced from a combination of foraged wild fish and by-products from human food production.The foraged wild catch is harvested from responsibly-managed sources and typically comprises of small, bony pelagic fish that generally aren’t used for human consumption.

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Fish protein and fish oil

%

Fish protein and fish oil

Future

Novel sources of nutrients and proteins are under development

King salmon FCR

1.8x

Beef FCR

6-10x

Feed conversion ratio

The feed conversion ratio (FCR) for our King salmon is around 1.8, which means 1.8 tonnes of feed is used to produce 1 tonne of salmon. In terms of protein conversion efficiency, salmon are better converters than other sources of protein including terrestrial livestock.

Feed conversion ratio

The feed conversion ratio (FCR) for our King salmon is around 1.8 or better, that means 1.8 tonnes of feed is used to produce 1 tonne of salmon. In terms of protein conversion efficiency, salmon are better converters than other sources of protein including terrestrial livestock or poultry.

King salmon FCR

1.8x

Beef FCR

6-10x

Feed research

We have been conducting extensive research to ascertain the optimal diet for our unique King salmon. Our research partners are the Cawthron Institute  and the project is part funded by Seafood Investments Limited and feed companies. We are in the final stages of this research programme and will implement findings and results across our feeding strategy in due course.