The basins for the flow-through system are 2 m deep and 100 m long. The freshwater supply is 1000 litres per second. Without additionally enriching the pools with oxygen an average population of 80 tons are held, resulting in an annual output of 180 tons. The system is designed to be particularly animal-friendly in terms of both construction and stocking density. The increased pool edge of 50 cm also provides good protection against otters and herons. Also, the feed distribution pipes for the Spotmix Fish feeding system could be installed very well.
The Spotmix Fish feeding and management system is the central heart of the modern flow-through pond system. The requirements for a modern feeding system were high. It should be flexible and labour-saving. Besides, feed losses due to sinking feed should be avoided. That saves money and improves water quality. Repeated feeding of small amounts throughout the day is necessary. And finally, the feeding should automatically take into account the growth and the water temperature. If it is too hot in summer or too cold in winter, the feeding has to be paused.
An average of 500 kg of feed is needed, due to the size of the pond. Moreover, it should be distributed individually to different pools. "Who wants to do it by hand?" asked Christian Kirchmayer himself. Then he found the solution: Spotmix Fish feeding and management system by Schauer Agrotronic. "We have been in operation for a year now, and I can clearly say that all expectations were exceeded"; says a happy Christian Kirchmayer and we are happy with him. The Spotmix Fish feeding system distributes pelleted ready-made feed (sizes between 3 and 6 mm, depending on the fish's size). The brood is currently moved from a second location, but will soon be integrated into the Thorhof facility. Spotmix also works for the smallest quantities from 10 g and the smallest pellet size.
Depending on the number of fish in each tank and individual needs, the fully automated and calculated distribution will take place 5 times a day. It is important to provide the fish with the exact amount that can be absorbed, to prevent sinking feed. This saves feed costs and improves the water quality enormously. The feed intake increases and decreases with changing water temperature. Depending on the water temperature, the amount of feed is automatically adjusted. The feed is distributed via compressed air and controlled by transfer tubes, supplying feed over a wide area.
The feeding system software also offers a perfect overview of the population and is, therefore, an electronic pond book. The personal inspection of the pool to determine the size and thus the growth of the fish and their health is the key to success. If there are target / actual deviations, the feeding strategy can easily be adapted to the Topo Spotmix feeding program.
The marketing of the particularly high quality live fish or fish fillets to retail chains and restaurants is organized by Marlene and Christian Kirchmayer themselves. 70% of the proceeds come from selling stocking fish for his professional colleagues.
According to Christian Kirchmayer, a fish farm like that, can not be run without automatic feeding.