Feed enzymes are biocatalysts that improve the digestibility of hard-to-access feed components. Phytase breaks down phytic acid, releasing bound phosphorus, allowing for a 30–50% reduction in the inclusion of inorganic phosphates. Xylanase degrades non-starch polysaccharides (arabinoxylans) in barley, wheat, and rye, reducing chyme viscosity and improving digestibility. Beta-glucanase is for barley and oat-based diets. Thermostable forms (up to 85°C) for inclusion before pelleting. Dosage: 50–500 g/ton of feed. Packaging: 25 kg bags, canisters (liquid forms). Phytase breaks down phytic acid (IP6), the main storage form of phosphorus in grains. Without phytase, monogastric animals (pigs, poultry) absorb only 30–40% of grain phosphorus. With phytase: 60–80%. Savings on MCP/DCP: 1 kg of phytase replaces 5–7 kg of inorganic phosphate. Xylanase degrades arabinoxylans, the non-starch polysaccharides (NSPs) in the cell walls of wheat, rye, and barley. NSPs increase chyme viscosity; xylanase reduces viscosity by 30–40%, improving the digestibility of all nutrients. Result: increases the metabolizable energy of feed by 50–100 kcal/kg. Beta-glucanase: for barley and oat diets, breaks down beta-glucans that cause sticky droppings (a problem in poultry farming – wet litter). Thermostability: coated granular forms withstand pelleting at 80–85°C. Liquid forms are applied post-pellet. Storage: ≤25°C, protect from moisture. Shelf life: 12–24 months. Documentation: quality certificate, feed additive registration certificate.