The extruded fish feed can be divided into floating fish feed and sinking fish feed according to the density change and the degree of expansion. Fish feed that floats or stays on the water for a long time is called floating fish feed. This type of feed is made using a floating feed pellet machine, which retains its shape even after several hours in the water. At present, floating fish feed is the most widely used aquaculture, and the processing technology is becoming increasingly mature. Floating fish feed is produced by an extruder. After the raw material enters the feeding hopper, it is heated, pressurized, squeezed, and extruded into particles.
Compared with floating fish feed, sinking fish feed does not float on the water for a long time. Once the fish has not eaten it, the feed will drop to the bottom of the pond. Although floating fish feed is the most expensive, it has many advantages over sinking feed.
Fish farmers need to ensure that their fish get all the nutrition they need, both in quantity and quality. Feed accounts for nearly 60% of the entire production cost. Therefore, they need to spend much time and effort determining the appropriate feed according to their farms and the type of fish. Usually, fish farmers choose floating fish pellets, which have many advantages.
Feed utilization: Due to the physical and chemical changes in the extrusion process, the extruded feed usually produces within 1% of the powder, which directly increases the efficiency of the feed. Compared with powdered feed or other feeds, the use of extruded floating feed can save 5-10%
Digestion & absorption: Under the processing conditions of high temperature and high pressure, the starch in the feed has a good maturity, which is more conducive to the digestion and absorption of fish. The fibrous structure and cell walls of the raw material are also destroyed and softened, thereby improving the palatability and digestibility of the feed.
Water quality: The extruded floating fish feed takes a while to dissolve in the water. The high-quality floating fish feed can float for up to 12 hours at a time, and it is convenient for farmers and farmers to monitor and manage the feed, minimizing water pollution.
Because the extruded floating fish feed can float on the water for a long time, fish farmers can easily observe the feed and adjust the feeding amount according to the needs of the fish. At the same time, the fish’s growth health can be more accurately inferred from changes in their food intake.
Wide range of feed size:We can get a variety of sizes from the moulds, ranging from 0.8mm to 12mm, to feed fish at different stages.
Reduction of diseases: Since floating particles stay in the water for a dozen hours, if the fish doesn’t eat the particles, you can clean them up. This will prevent the fish feed from rotting and spreading disease. The decomposed fish feed can be the cause of the spread of harmful diseases, as it can cause bacterial growth and contamination of water quality.
Breeding methods: In terms of breeding methods, the extruded floating fish feed has broad applicability. Floating fish feed can be used for pond fish farming, paddy field fish farming, running water fish farming, cage fish farming, industrial fish farming, and large-scale water-intensive farming. The use of floating fish feed is more advantageous than other feeds.