THE EFFECT OF DRIED POTATO POWDER WITH ENZYME SUPPLEMENTATION ON PERFORMANCE OF JAPANESE QUAIL (COTURNIX JAPONICA)

ABSTARCT This study was to investigate the effects of feeding dried potato powder with or without glucanases enzyme on performance of Japanese quail. A total of 192 fifteen days old quail chicks with an average weight of 40±50g were divided into 8 treatments with 3 replicates as experimental factorial design. The treatments were divided as basal diet with no enzyme and potato powder kept as control and for others 15 % potato with (0.5g/kg) or without glucanases enzyme, 30 % potato with (0.5g/kg) or without glucanases enzyme, 15 % potato with (0.5g/kg) or without glucanases enzyme were used respectively. The live body weight gains and feed consumption of birds were measured individually feed conversion efficiency were calculated weekly. At the end of the trial for investigating the effect of using tomato powder supplementation on performance of quails, 2 birds form each replicates were slaughtered and some blood samples were taken for blood parameters determination. Data showed that using of potato powder had decreased feed intake (p<0.05) compared to control so that quails with increasing consumption rates of potato had the lowest feed intake. Also data showed that with using glucanases they had lesser feed intake totally. These data showed that the highest body weight gain was for control group. Although quails were fed by potato had lesser body weight gain but also quails were fed by glucanases enzyme lead to better body weight gain none significantly. Observation of this study indicated that using cumulative levels of potato with glucanases enzyme didn’t significant changes on feed conversion ratio. As result was relevant from this study there were no significant differences between treatments about some carcass organs. Also using potato and glucanases lead to decrease breast meat weight. There were no significant effects about wings, drumstick, intestinal and gizzard weights between treatments. In conclusion potato powder with or without glucanases enzyme may be used as ingredient instead of corn in quail’s diet without harmful effect on performance of them.