European catfish

The European catfish (Silurus glanis), also known as the wels catfish, is a large freshwater fish native to Central and Eastern Europe. It is one of the biggest freshwater fish species, capable of growing over 2 meters in length. It thrives in slow-moving rivers, lakes, and reservoirs and is increasingly farmed for commercial food production, recreational fishing, and stocking natural waters.

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Learn more about European Catfish

Feed Requirements

High-Protein Diet: European catfish require a protein-rich diet (35-45%) to support rapid growth. Common protein sources include fish meal, plant-based proteins (soy, wheat, and pea protein), and byproducts from the meat industry.
Fat and Energy Needs: A fat content of 10-20% provides essential energy for growth and development.
Live and Processed Feed: In natural environments, wels catfish are carnivorous, feeding on fish, crustaceans, and amphibians. In aquaculture, they adapt well to pelleted feed, but young fish may initially require live feed or fresh fish before transitioning to formulated diets.
Essential Nutrients: Vitamins (A, D, E, and B-complex) and minerals (calcium, phosphorus, and magnesium) are required to maintain health and disease resistance.

Farming Systems

Pond Farming: European catfish are commonly raised in semi-intensive pond systems, where they feed on natural organisms supplemented with commercial feed.
Recirculating Aquaculture Systems (RAS): Intensive farming in RAS allows for precise control of water quality and stocking densities, improving production efficiency and sustainability.
Tank-Based Systems: Concrete or fiberglass tanks are used for controlled rearing, often as part of indoor aquaculture operations.
Cage Farming: In some regions, wels catfish are farmed in cages placed in large lakes or reservoirs.
Polyculture Farming: European catfish can be farmed alongside carp and other species in a polyculture system, optimizing resource use and improving overall farm efficiency.

Benefits for the Consumer

Rich in Lean Protein: European catfish provide high-quality protein, making them a nutritious choice for muscle growth and overall health.
Low in Fat: Compared to some other farmed fish, wels catfish are relatively lean while still offering beneficial unsaturated fats.
Mild Flavor and Culinary Flexibility: The meat is white, firm, and mildly flavored, making it suitable for grilling, smoking, frying, and stews.
Sustainability Potential: European catfish farming can reduce pressure on wild fish stocks and provide a sustainable alternative to overexploited marine species.