Current trends in the application of alpha-amylase in feed production to enhance animal productivity

Abstract

This study aimed to assess the efficiency of using alpha-amylase in the production of feed for farm animals. The study involved a systematic review of scientific literature, patent documents, regulatory acts, and experimental research, enabling the identification of key trends in the use of alpha-amylase, its mechanisms of action, and prospects for industrial feed production. It was established that using thermostable enzymes ensures effective starch breakdown during feed extrusion, while encapsulation technologies help preserve alpha-amylase activity during pelleting. The study analysed microbiological methods of enzyme production, including the use of bacteria from the genera Bacillus and Streptomyces, as well as fungi from the genera Aspergillus and Penicillium. It was found that solid-state fermentation on agricultural waste is a cost-effective approach to enzyme production, yielding high levels of active alpha-amylase. The results confirmed that the application of alpha-amylase in pig feed increases dry matter digestibility by 4.9% and average daily weight gain by 27.4%. The feed conversion ratio decreases by 12.4% for poultry, while body weight gain increases by 18.2%. In cattle, average daily weight gain increases by 16%, and milk yield rises by 1.7%. It was determined that enzyme use contributes to an 8-12% reduction in feed costs and improves livestock farming profitability. The findings demonstrate the effectiveness of enzyme supplements in the feed industry and support the feasibility of implementing enzymatic feed processing technologies to enhance animal productivity

Keywords

• agriculture
• exoenzymes
• additives
• carbohydrates
• enzyme preparations