Sojatoasten für die Legehennen-Fütterung


Soya processing Soybeans are an excellent source of protein for both humans and livestock. But they contain also anti-nutritive substances. These are deactivated using heat treatment. There are different procedures for this heat treatment. One of these procedures is toasting. Usually, this process is carried out externally, not on the farm itself. In this video we see how soybeans can be processed on the farm. We are with Johannes Edhofer. He cultivates soya himself and,
after processing, feeds it to his own laying hens on his farm. On-farm soya processing – toasting soybeans for feeding laying hens Edhofer farm
We are in Sankt Pölten in Austria in a field of soybeans. In the background is our farm where we keep laying hens for eggs which we market ourselves. Most of the feed for the laying hens is grown, processed and dried on the farm. Soybeans are toasted, ground and then mixed according to the recipe for the hens. Why did I start to grow soybeans? Here in Austria, there was a decline in the growing of soybeans. I was concerned that we were dependent on soy from Brazil, the USA or wherever for our cattle, pigs and hens. It is very important to us that we can grow our own soya successfully. The most important goal for me is to retain the added-value here on my farm. About toasting Here is where soybeans arrive from the field. After the dryer, they are stored here. From this silo, soybeans are conveyed up to the silo. We are going up to the core of the toaster and the press. We are now at the toaster. Up here is the silo. From this silo soybeans flow into the toaster where they are heated to 92 to 94 degrees centigrade. The toaster runs on electricity. It processes about eighty kilos per hour. After the dosing device, the beans go to the oil press. On one side, soybean cake comes out. On the other side, the soybean oil
flows down into the tank. After the press, the soybean cake is stored here in the temporary storage. From there it returns to the computer-controlled milling and mixing equipment via the conveyor system, where the soya is then mixed with the milled maize and wheat for the laying hens. Composition of the soybean cake The soybean cake is 43 percent crude protein, 11 percent residual oil, 5.5 percent crude fiber. This cake accounts for 26 percent of the feed. Furthermore, maize and wheat and a blend of supplements are used in the ration. Depending on the ambient temperature, the soy cake can be stored for at least eight to twelve weeks. Adapting the feed ration If you switch from solvent-extracted soymeal to cold-pressed cake, you should slowly increase the inclusion of soy press cake, especially in the case of laying hens. Then there should be no problems on the farm or with egg production. Control of the toaster This toaster is automatically but simply controlled. Once you have laboratory data for the right parameters, it is relatively easy to set and calibrate the toaster for the needs on your farm. Then it works smoothly. In summary, I can say: Processing and/or the feeding home-grown soybeans on your own farm is a challenge. You have to investigate it deeply, you should have a technical concept, you need some know-how and experience so that it can really work. The required knowledge and experience is collected by “OK-Net EcoFeed” and “Legumes Translated” and will be made available to other farms in Europe. Production: Leopold Rittler, Donausoja, Vienna
Filming and editing: Thomas Alföldi, FiBL, Frick
Thanks to Johannes Edhofer

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