Fish Feed Production Systems
Fish Feed Production Systems
Fish Feed Production Systems
Moisture Feeds
Made by non economic fish species
Moisture Feeds
The main principle is grind and mix and then
feed the fish
Moisture Feeds
Most important advantage of the feed is to be
cheaper than the other feed types,
It does not require any mechanization.
Moisture Feeds
Disadvantages;
1. It is hard to find in all seasons,
2. The nutritional content of the feed varies
according to season,
3. It is difficult to keep it fresh and ready to
use.
Dry Feeds
Advantages;
1. Nutritional content of the feed is guaranteed (you can
exactly know the nutritional level of the feed),
Dry Feeds
Disadvantages;
1. Requires mechanization and automation,
2. It is more expensive than moisture feeds,
1. Intake ingredients,
2. Grinding,
3. Mixing
4. Conditioning,
5. Pelleting
6. Sieving, drying and cooling
7. Packing
Grinding provides;
Reduced particle size results in conditioner better water penetration and
improved gelatinization
Improved product appearance
Reduced incidence of die orifices plugging
Ease of cooking
Reduced product breakage and fines
Increased water stability
Improved retention of liquid coatings due to small cell structure
Particle size is critical to mechanical and chemical activity
Finally: increased digestibility
Vertical mixers: Grinded ingredients are sent to vertical mixers, the spiral
container transport the ingredients above of the mixer. Spiral material
helps to mix them while transporting.
Vertical mixers provide fish feed plants to save place.