As highlighted by FAO (Food and Agriculture Organization of the United Nations), aquaculture accounts for 50% of total fish production. With emphasis on food security and environmental sustainability, it will continue to grow in the future. This puts higher requirements on the supply of aquafeed to better cope with this trend. The quality of aquafeed is related to the cost and quality of aquaculture. Traditional aquatic feed has the limits of low yield, difficult quality control, single nutrition composition, and high cost. Extruded pellet feed has the advantage of scientific formulation, controllable process, high production efficiency and environmental friendliness, and has become an important source of feed for aquaculture.

Extrusion and pellet mill are two main methods of producing pelleted aquatic feed. Their technological characteristics determine the characteristics of aquatic feed and complement each other.

High-quality aquatic feed is a comprehensive consideration of its buoyancy, stability, nutrition, feed conversion ratio, storage time and other factors. Extrusion technology meets the above needs to a larger extent, and its characteristics are as follows:

-Wide range of raw materials: Using extrusion technology, the raw materials come from a wide range of natural source, such as corn, barley, wheat, rice, and agricultural by-products including defatted rice bran, wheat bran, and soybean meal; All of these ingredients make up the natural source of starch and protein with high nutritional value .

-Scientific nutrition ratio:  Through setting the extrusion parameters on the extrusion machinery, the starch and protein contents can be adjusted to meet different dietary requirements. For example, the protein content can be increased to meet the dietary needs of certain fish. Fats and micronutritions such as fish meal and algae meal can also be added in a planned way to meet the different growth needs of fish.

-High FCR: The main nutritional components starch and protein are pre-gelatinized by high-temperature and high-pressure cooking in the extruder. This bring a easy digestion and a higher feed conversion rate.

-Controllable process: Extruded feed pellets can be produced with different buoyancity capacities,  such as fast-sinking pellets, slow-sinking pellets, floating pellets. This is obtained by changing the starch proportion in the formula and precisely controlling process parameters such as temperature, resident time, pressure, and moisture. The production is flexible and the process is controllable.

-Flexibility: By changing extrusion dies of different sizes, extruded pellets of various sizes can be obtained, such as small pellets of 2-3mm, medium pellets of 4-5mm, large pellets of 6-7mm.

Fish/shrimp/aquaculture pellet feed extrusion production process:

raw material crushing – raw material mixing – extrusion cooking and pelleting – drying – cooling – weighing & packaging

Fish/shrimp/aquaculture feed manufacturing machine: Raw material grinder, Raw material mixer, Fish pellet extruder (Twin-screw or single-screw extruder), Fish pellet dryer, Fish pellet cooler, Fish pellet weighing packaging machine

Whether you need one machine, complete fish feed making machine, or to expand your existing aquaculture feed production capacity, you can rely on our professional knowledge and excellent production experience.

Applicable production range: extruded aquatic pellets , aquatic pellet feed, high-nutrition aquatic feed