1. Features of extruded floating fish feed
Feeding management is convenient, the aquatic extruded feed can be suspended on the water surface for a long time,
and there is no need to set up a feeding table when feeding, only fixed-point feeding is enough. Fish need to float up
to the surface of the water when they eat, so they can directly observe the fish's eating situation, adjust the feeding am
ount in time, and understand the growth and health of the fish in time. Therefore, the use of aquatic extruded feed is
helpful for scientific feeding and management, which not only saves a lot of time, but also improves labor productivity.
Breeders can calculate the amount of bait that should be fed according to the species, specifications, quantity, water
temperature and bait rate of the fish being cultured, and feed them quickly, which not only saves a lot of time, but also
improves labor productivity.
To reduce the occurrence of diseases, feed materials often contain harmful microorganisms, such as aerobic organisms, neutrophils, Escherichia coli, molds, and salmonella. The content of animal feed materials is relatively high. The high temperature, high humidity, and high pressure of the expansion can kill most harmful microorganisms. According to data, the number of Escherichia coli per gram of raw material is up to 10,000, and there are only less than 10 remaining after expansion. Salmonella can basically be killed after being expanded at a high temperature above 85 ℃, which helps to maintain water quality and reduce The unfavorable environmental factors of aquaculture reach 0.4 at the same time, which is equivalent to a moisture content of 8%-10%, which can better improve the storage stability of feed.
2. Comparison of the utilization rate of puffed and floating puffed feed with powdered materials and granular
Extruded floating fish feed is beneficial to improve feed utilization. Due to the high temperature and high pressure processing
conditions, the starch in the feed is matured, fat, etc. are more conducive to digestion and absorption, and the fiber structure
and cell wall are destroyed and softened, and the gossypol in cottonseed meal and the antitrypsin in soybeans and other
harmful substances are destroyed , Thereby improving the palatability and digestibility of the feed.
In addition, due to the physical and chemical changes in the extruded process, the extruded feed generally produces powder
within 1%, which directly improves the effective utilization of the feed. Under normal circumstances, using extruded floating
feed to raise fish can save 5-10% of feed compared with powdered feed or other pellet feeds.
3.Equipment list in the fish feed production line:
mixer→screw conveyor→twin screw extruder→air conveyor→dryer→hoister→flavoring drum and oil sprayer→cooling machine→packing machine
Flow chart diagram:Our engineer could design the layout drawing according to your dimension of the factory for the fish feed machines