the effect of multi enzyme on performance and nutrients digestibility in african ostrich (struthio camelus var. domesticus) at 14-months age

the effects of a multi enzyme were evaluated on performance and nutrient digestibility in african domesticated ostrich at 14 months ages. there were three treatments as; common diet (1), common diet plus multi enzyme (0.350 gkg -1) (2) and common diet plus multi enzyme (0.700 gkg -1) (3). 18 ostrich were used in this experiment (6 birds per treatment). there was significant effect of enzyme supplementation on feed intake, dry matter intake parameters (p>0.05). digestibility of gross energy (ge), dry matter (dm), organic matter (om), neutral detergent fiber (ndf) and acid detergent fiber (adf) (p>0.05) was significantly affected by enzyme supplementation.  treatment one showed the lowest organic matter digestibility than treatments 2 and 3. enzyme in barley contained diet significantly increased the digestibility of crude protein (cp) and crude fat (ee) compared with treatment one. different enzyme level also significantly increased the digestibility of ndf and adf compared with treatment one. generally, the use of multi enzyme especially at level of 0.700 gkg-1affected to improve performance traits and feed intake parameters, nutrient digestibility, especially crude protein, ndf, adf and nfc in growing ostrich chicks.