THE EFFECT OF EXTRUSION ON THE MICROBIOLOGICAL INDICATORS OF FEED AND FEED SUPPLEMENTS

Abstract

The article presents the comparative results of microbiological studies of feed and feed additives manufactured in the production and testing workshop of the Kazakh Agrotechnical University named after S. Seifullin. Feed additives were produced by barothermal processing of feed grain-oats and barley to obtain extruded components. The diagnostic test plates Compact dry were used in the work, which allow to determine microbial contamination in a short time. As a result of the research, it was found that in feed additives produced by extrusion and granulation, there is a sharp decrease in the number of microorganisms (the total number of viable bacteria, enterobacteria, enterococci, salmonella, E. coli), yeast and mold fungi are completely destroyed. The best results in microbiological purity were shown by samples of extruded feed additives containing propylene glycol, active charcoal and balsamic poplar kidney extract.