Uporaba enzima koji razgrađuju neškrobne polisaharide (NŠP) u hranidbi nepreživača osobito β-glukane i ksilane, u krmnim smijesama na osnovu nekih žitarica za perad i svinje u posljednjim godinama pokazala se opravdanom. Dodavanje temelji se na (djelomično) razgradnji NŠP, koje vodi do poboljšanja učinkovitosti probave (povećana probavljivost hraniva i energetska vrijednost krmiva..) i dovede do poboljšanja proizvodnih osobina. Opisane su neke zakonitosti, koje mogu prouzrokovati određene varijabilnosti rezultata (vrsta životinja, starost, sadržaj i topljivost NŠP u žitaricama, osobine enzima...).In last few years the addition of non starch polysaccharides (NSP), mainly β-glucanes and xylanes, degrading enzymes in some grain based diet for poultry and pigs have been recognised as beneficial. The addition is based on the degradation on NSP which increases the efficiency of digestion (better availability of intracellular substances, lover intestinal viscosity, increased nutrient digestibility and energy value of feed...) and leads to improved production traits. Some factors (species, age, the amount and solubility of NSP in grains, enzyme properties...) which lead to variable results are also discussed
