Feeding fish with corn leftovers – here is why it works so well

Corn gluten meal (CGM) is a high-protein byproduct of the wet milling process of corn, where starch and oil are extracted, leaving behind protein-rich leftovers. Despite its name, it’s not the kind of “gluten” that gives bread its stretch - that’s wheat gluten. Think of corn gluten as more of a protein cousin, not a culinary sibling. Despite its name, corn gluten contains no gluten as found in wheat, rye, or barley. The word “gluten” here just refers to protein content.

Corn gluten meals are packed with value in aquaculture nutrition. With 60–70% protein on a dry matter basis, plus functional compounds like carotenoids, CGM is doing a lot of hard work in modern fish and shrimp diets. Fish don’t just need protein; they need digestible protein. One of corn gluten’s major strengths is its well-balanced amino acid profile, with good levels of methionine, which is often limited in other plant proteins. Its high digestibility makes it an excellent contributor to growth performance in many aquaculture species.

Additionally, CGM contains natural antioxidants, which support overall fish health and oxidative stability. Its low starch content makes it suitable for species with limited carbohydrate tolerance. It also contributes essential micronutrients such as B vitamins, phosphorus, and trace minerals, supporting metabolic function and bone health.

CGM is obviously a sustainability star. It repurposes a by-product of corn processing, reducing waste, and cuts reliance on overfished or environmentally costly ingredients like fishmeal and soybean meal. In a world where fishmeal is increasingly expensive and environmentally questionable, CGM shines as a sustainable, circular economic solution:

·        It’s a byproduct, meaning it adds value to what would otherwise be waste.

·        It reduces reliance on wild-caught fishmeal, supporting ocean conservation.

·        It cuts pressure on land use and deforestation

·        It’s cost-effective and widely available, especially in corn-producing regions.

In essence, CGM helps aquaculture become more efficient, ethical, and eco-conscious without compromising on performance.

Resultater (36)

    Bedre foder resulterer i bedre mad til os alle

    Hos BioMar forstår vi, at rejsen til enestående fisk og rejer begynder længe før, den når bordet, og den starter med det foder, der giver næring til fisk og rejer.

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    Udviklingen i næringsstoffer til akvakulturfoder

    Fisk og skaldyr er meget tilpasningsdygtige og har brug for omkring 40 essentielle næringsstoffer, som kan komme fra forskellige råmaterialer, herunder marine ingredienser, animalske produkter, korn og nye kilder. Denne tilpasningsevne er afgørende for branchens vækst og vil give mulighed for forskellige foderformuleringer.

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    Mindre er mere

    Fiskeopdrættere kan opnå bedre resultater ved at bruge mindre foder

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    Stay in control of oxygen fluctuations

    In fish farming, large fluctuations in the oxygen content of water have a negative impact on the well-being of the fish and consequently on its growth. High water temperatures or rich vegetation in the water are important alarming factors to observe, especially in summer periods.

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    Ensuring optimal oxygen levels

    Just like humans, fish need certain levels oxygen to thrive. Sub-optimal oxygen levels may have consequences on the well-being of the fish and consequently on the economic outcome of a fish farm. Active observation and assessment are required to take the necessary actions in good time.

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    Stay in control of oxygen fluctuations

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    Vi er, hvad vi spiser... spiser

    I dag har forbindelsen mellem det, vi spiser, og hvordan det påvirker vores helbred, aldrig været tydeligere. Når det drejer sig om fisk og skaldyr, er denne forbindelse endnu mere betydningsfuld. Det er ikke bare »vi er, hvad vi spiser« - men »vi er, hvad vi spiser, spiser.« Opdrættede fisks og rejers kost har direkte indflydelse på deres næringsværdi, hvilket gør kvaliteten af fiskefoderet til en afgørende faktor for at sikre, at de fisk og skaldyr, vi spiser, er nærende, sunde og produceret på en ansvarlig måde.

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    How to secure an appropriate oxygen supply?

    In fish farming, being attentive to oxygen levels and implementing oxygenation are important prerequisites for maintaining economic growth rates.

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    Vær klar til den kolde tid

    Med EFICO Enviro 920 Advance hjælper vi dine fisk med at få fuldt udbytte af vækstpotentialet.

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    Ensuring optimal oxygen levels

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    Inicio Plus demonstrerer enestående vækst og ensartethed i forsøget med ørredfoder.

    I et nyligt ørred foderforsøg med yngel beviste Inicio Plus endnu en gang sin styrke ved at opnå hurtigere vækst og mere ensartet yngel end konkurrerende startfoder. Den bedste visuelle vandkvalitet blev observeret med BioMar-foderet, hvilket afspejler dets positive indvirkning ud over vækstpræstationen.

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    Creating the perfect pink fish fillet: The strategy behind pigmentation

    At the BioMar factory in Denmark, we assist salmon and trout farmers with tailored solutions, backed by our technical expert team, BioFarm. These advisors are dedicated to sharing knowledge on pigmentation strategies, helping our partners achieve top-quality fish fillets.

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