INFLUENCE OF THE PROCESS OF EXTRUDING ON THE VITAMIN AND MINERAL COMPOSITION OF GRAIN FEED

Аннотация

The article presents the results of studies on the effect of the extrusion process on the vitamin and mineral composition of grain feed. The control (CON) was a sample a mixture of raw grain (80% barley and 20% wheat), it was compared with 3 samples: extruded raw grain (Ext), raw materials with the inclusion of a premix before the extrusion process (CON+P+b), extruded raw material with the inclusion of a premix after the extrusion process (Ext+P+a). The preparation of extruded samples was carried out on an extruder with a capacity of 350 kg/h using a granulator at a temperature of 100-105 ℃, a pressure of 30-50 atm., an exposure time of 3-5 seconds. The result of our research showed that in the Ext sample, the number of vitamins decreased by an average of 2.8 times, the mineral composition decreased by 7%. In the CON+P+b sample, the vitamin composition remained practically at the same level. In the Ext+P+a sample, the vitamin composition increased by 58% compared to Ext, and the mineral content became higher than in CON by an average of 20%. According to the results of our research, it is recommended to include a
premix after the extrusion process in the production of compound feed, as this contributes to a greater preservation of vitamins and increases the mineral composition.