What types of aquafeeds are there and how to choose?

With the development of the feed industry, the improvement of processing
equipment and breeding technology, the aquatic feed by fish farmers have
changed from ordinary single raw materials to powder, hard pellets and extruded
feed.

At present, except for some species (such as soft-shelled turtle, eel, etc.)
that use powder, other species basically use hard pellet feed and extruded feed
pellet. The fish feed pellets are processed from crushed materials such as
corn, soybean meal, straw, grass, and rice husks that directly press pellets.

Feed Pellets
The feed raw materials are first crushed (or mixed first), then fully stirred
and mixed, and water and additives are added.

Hard pelleted feed: The water content of the molded feed is less than 13%, the
particle density is greater than 1.3 g/m³, and the sinking property. Steam
quenched and tempered above 80℃, rigid, diameter 1～8mm, length is 1～2 times
of diameter. It is suitable for breeding salmon, trout, carp, crucian carp,
grass carp, herring, bream, tilapia, and other species.
Soft pelleted feed: The soft pellet feed has a water content of 20% to 30%, a
particle density of 1 to 1.3 g/cm³, softness, a diameter of 1 to 8 mm, and a
noodle or pelleted feed. No steam is added during the molding process, but 40%
to 50% of water needs to be added, and it is dried and dehydrated after
molding. Herbivorous, carnivorous, or carnivorous omnivorous fish like to eat
this feed, such as grass carp, eel; carp, and bass. The disadvantage of soft
pellet feed is that it has large water content, is prone to mildew and
deteriorates, and is not easy to store and transport.
Micro pellet feed: It is a general term for new feeds with a diameter of fewer
than 500 microns and as small as 8 microns. They are often used as a substitute
for plankton and are called artificial plankton. Feed newly hatched fry,
shrimp, crab, and shellfish, also known as an open feed.
Extruded pelleted feed: The water content of the extruded pellet feed is less
than that of the hard pellet feed after molding, and the pellet density is
about 0.6 g/cm³, which is a floating foamy pellet. It can float on the water
surface for 12 to 24 hours without dissolving and dispersing, and the
dissolution loss of nutrients is small, and it can directly observe the feeding
situation of the fish, which is convenient to accurately control the feeding
amount, so the feed utilization rate is high.

Minimum Order: 1 sets

Click to Enlarge