The use of higher quality feeds in fish farming demands better feeding technique. Optimal growth of fish and optimal use of feed is only possible with exact rationing of feed, waste-free feeding and multiple daily feeds. It is difficult and expen sive to achieve these objectives with manual feeding. In addition, automatic feeding considerably reduces working hours and it makes the work easier!

As a result, LINN Gerätebau has developed the Profi-feed sprayer. With this device it is possible to spread the feed into the pond without waste. The feed is put into the air-stream of a powerful blower and with the assistance of this airstream it is distributed across the pond up to a dis tance of 8 m. The LINN feed sprayer guarantees a maintenance-free and trouble-free operation and virtually abrasion free feed distribution (in contrast to centrifugal discs).

The Profi-feed sprayer is suitable for feed of 2-7 mm. The portioning finger at the outlet of the feed container (specially developed for this use) guarantees a consistent portion, and free flow of the feed. Clogging is virtually impossible. At the outlet of the feed container is a meter with scales. Thus, it is possible to adjust the size of the feed pellet quickly and easily, even when the hopper is full.

The standard version of the feed sprayer comes with a special timer with display. This timer is protected by a robust casing sited next to the feed hopper. If preferred, it is possible to have several hoppers controlled by a centralised controller. Adjustments are easy. There is an additional on/off button to turn the sprayer off completely. Thus, it is possible to control the amount of feed and the number of feedings.

Feeding in Aquaculture

Feeding represents one of the major maintenance costs in a fish farm. Developed methods for fish rearing are divided into the following 3 categories according to feeding dispensation: hand, automatic and demand feeding. The first one is an old and high labor cost method, while the second one is widely used nowadays although it causes an overfeeding in cultured fish. The last one is a recent method which has been developed sufficiently in experimental scale but its application in farms is still restricted. It has been applied in several fish species of fresh or sea water and the results are promising.

In the Mediterranean aquaculture industry, with a huge production of warm water marine species in the last twenty years, automatic feeding preceded the demand systems. The knowledge on the latter system was restricted. Demand feeders are controlled by the fish themselves according to their appetite. These feeders are easy to install and operate. The level of the feed in the container is a good indication of the condition of the fish. ASakua machines are used as automated demand feeder by our clients. You can get the demand feeding systems with our HDPE boat products as well. Our capacity range is from 500kg to 5 tones with single, double or four sectioned feed silos.