A total number of 180 Japanese quail chicks at hatch were used in an
experiment which lasted 6 weeks. The experiment aimed to study the utilization of
olive pulp meal (OPM ) as a feedstuff in growing Japanese quail diets. Chicks were
divided into 4 equal experimental groups of 45 chicks in three replicates ( 15 chicks/
replica.). The OPM was used at levels of 0,10,15 or 20% in the diets. The
experimental diets were isocaloric and isonitrogenous Live body weight and body weight gain of quail chicks were significantly
(P< 0.05) decreased with the increase of OPM % in the diets. The highest live body
weight and body weight gain were recorded by using 10 % OPM, while, those fed on
20 % recorded the lowest one. It is worthy noting that feed intake increased
significantly (P<0.05) with the increasing of OPM levels. Moreover, feed conversion
ratio (g feed/g gain) became significantly worst (P< 0.05) by increasing DSM up to
20% in the diets. The highly levels of OPM in the diets showed significant (P< 0.05) decrease
in the dressing percentage of quail. The 10 % OPM group showed the best net return
as well as the highest value of economic efficiency among experimental groups. Digestibility coefficients of CP, CF, NFE and the nutritive values as DCP
,TON % and ME(Kcal/kg) were significantly varied (P<0.05 or P<0.01) among the
different experimental groups. Serum TP, AL ,GL, AlG ratio, Cr and Ur recorded a -ion-siqniftcant difference
among quail groups. Serum enzymes AL T, AST recorded an increase (p < 0.05) with
increasing OPM levels. Serum cholesterol recorded decrease (p < 0.05) with increasing
OPM levels. From the nutritional and economical efficiency stand points of View, the olive
pulp meal could be recommended to be used successfully and safely in formulated
diets for growing quail, if be included up to 10% without adverse effect on growth
performance or physiological parameters.