What are the core raw materials and processing methods for fish feed?

 

 

Many people think fish feed is just "fishmeal + cornmeal," but that's not true. Good fish feed requires a variety of ingredients, some to provide protein, some to provide energy, and others to supplement vitamins. Moreover, these ingredients can't just be poured into the machine; they need to be pre-processed according to the processing requirements of the fish feed pellet production line. For example, some need to be crushed, and some need to be dried. Otherwise, the feed will either be nutritionally insufficient, or the machine will easily clog.

 

 

1. Protein Raw Materials: The "Key Ingredients" for Fish Growth

These raw materials are the main source of protein for fish; without them, fish won't grow quickly. Common examples include fishmeal (imported fishmeal has a protein content of over 60%, suitable for high-protein species such as sea bass and shrimp), soybean meal (40%-45% protein content, cost-effective, suitable for grass carp and tilapia), and insect protein (such as black soldier fly larvae powder, with a protein content of around 50%, environmentally friendly and inexpensive, now used by many factories).

 

Production Line Processing Requirements: Protein raw materials must be ground to 80-100 mesh (as fine as flour), otherwise the particles will be uneven and difficult for fish to digest; if the fishmeal becomes damp and clumps, it must be sieved and broken up first to avoid clogging the production line's feed inlet.

 

2. Energy-generating feed ingredients: the "staple food" that provides energy for fish

These feed ingredients primarily provide carbohydrates, giving fish the energy to swim and feed. Common examples include cornmeal (high starch content, which makes feed pellets more compact), wheat flour (viscous, which improves the feed's water resistance and prevents it from crumbling when soaked), and bran (high in fiber, suitable for herbivorous fish like grass carp, aiding digestion).

 

Production line processing requirements: The moisture content of energy-generating feed ingredients must be controlled between 12% and 14%. If the corn is freshly harvested and has a high moisture content (over 18%), it must be dried first in a dryer; otherwise, the extruder on the production line will easily stick to the feed. Wheat flour must be mixed evenly with other ingredients; otherwise, the feed pellets will be uneven in texture, with some being hard and others soft.

 

3. Additives: "Seasonings" for "supplementing nutrition and preventing disease" in fish.

These ingredients are used in small quantities but have significant effects. Examples include vitamins (vitamin C enhances fish's disease resistance, vitamin D aids calcium absorption), minerals (calcium and phosphorus powder strengthens fish bones), probiotics (aid digestion and reduce enteritis), and attractants (such as fish paste, which gives feed a fishy smell, making it more appealing to fish).

 

Production line processing requirements: Additives should be pre-mixed with a small amount of corn flour (e.g., 1 kg of vitamins mixed with 10 kg of corn flour) before adding the main ingredient; otherwise, uneven mixing is likely (some pellets contain additives, some do not). Probiotics are sensitive to high temperatures and should be added towards the end of the production line (e.g., sprayed onto the pellet surface during cooling after extrusion) to avoid being killed by the high temperature of the extruder.

 

 

 

Regardless of the raw material, it must undergo three pretreatment steps before entering the production line:

1. Grinding: Except for coarse fiber materials such as bran, all other raw materials must be ground to at least 80 mesh (using the production line's hammer mill). Too coarse particles will cause uneven pressure in the extruder, resulting in easily broken feed.

 

2. Drying: The moisture content of all raw materials must be controlled between 12% and 14% (using the production line's hot air dryer). Too high a moisture content will cause the raw materials to clump and clog the screw in the production line.

 

3. Premixing: Additives and a small amount of main ingredients are premixed. Protein and energy ingredients are mixed in proportion, then fed into the production line's twin-shaft mixer for thorough mixing (mixing time 15-20 minutes) to ensure that each feed pellet has the same nutritional content.

 

 

 

MIKIM boasts extensive experience in poultry feed pellet production lines, significantly reducing the incidence of poultry diseases. Its equipment is not only widely used across various industries domestically but also exported to Southeast Asia, Europe, Africa, and South America, earning a high reputation internationally. This global presence not only demonstrates the adaptability and competitiveness of its products, but also demonstrates the company's experience in adapting to diverse market standards and logistics conditions, enabling it to provide a stable supply chain for its overseas customers. Whether serving large domestic farms or cross-border feed companies, MIKIM can leverage its global service network to ensure a consistent, high-quality experience.

 

For more information on process flow design, equipment layout, factory construction plans, individual equipment pricing, or turnkey project proposals, please feel free to contact us!!!

 

 

 

1. What is the price of the fish meal pellet production line?

The price ranges from approximately $15,000-$55,000

2. Do you provide maintenance services for your customers?
Yes, we offer comprehensive after-sales maintenance services to our customers.

 

 

 

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