Review and analysis of extrusion technology in the production of feed additives based on probiotic microorganisms

Abstract

Ensuring a well-organised and sustainable feed base is the main condition for the development of animal husbandry, increasing its productivity and product quality. To ensure active growth and high productivity, probiotic feed additives are added to the feed, which increase the immune response of the host organism to pathogenic microorganisms, increases the conversion of feed and live weight gain. One of the main processes of feed production is extrusion, which can be cold, warm and hot. The hot extrusion process takes place at a temperature above 130℃ and cannot be used in the production of compound feeds with probiotics that withstand temperatures up to 85℃. During cold extrusion, the temperature reaches no higher than 70℃, which allows the extrusion of mixed feed mass, which contains probiotic feed additives.