الفهرس 
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Abstract
This experiment was passed out to learning the result of addition with PSE at 0.0, 0.2, 0.4 and 0.6% levels as growth promoter supplementation in quail diets on productive performance and metabolic reaction. Three hundred growing quails one day old randomly separated to 4 dietary treatments groups (75) quails. Each treatment group was split into 3 replicates of 25 quails each. Quails fed 4 dietary treatments groups as follows:- the 1st treatment received the control diet with no addition (control), the 2nd treatment received a control diet added with 0.2% PSE supplementation, the 3rd treatment received a control diet added with 0.4% PSE addition and the 4th treatment received a control diet added with 0.6% PSE.
The study started from 0 weeks old to 6 weeks old, all diets and water delivered ad-libtum, BW and FI were recorded each week throw out the study. Feed conversion (g feed/g gain) for each replicate inside each week was calculated. At the end of study (6 WKS of age), 6 quails from each treatment were chosen, weighted and slaughtered after 12 hours of fasting. The internal organs (liver, heart and gizzard) were collected, weighted and relative weights were calculated during the experiment. Blood samples were collected in two tubes the first one was not heparinized tube and the second was contained heparin as an antic agglutination substance. The first one was taken for separating serum for the biological serum constituents: Liver functions) TP, Albumin, Globulin and Glucose), liver enzymes (GOT, GPT), Triglycerides and Cholesterol and some immunological studies. The second tube was taken for blood physical characteristics (RBC’s, PCV, Hb, and, white blood cells deferential count). At the end of the study (42 days), five male birds from each replicate utilized to calculate the digestibility of the nutrients in dietary groups. The trial was continued for five days after the experimental period of 42 days. The birds were received the experimental diets. The collection period continued for 5 days. Feeds and water were available ad-libitum. Feed intake was calculated and excreta output was collected daily. The digestibility coefficients of DM, OM, CP, EE, CF and NFE were calculated
Obtained results declare that:
1- No significant (P<0.05) difference was noticed in BW and BWG between dietary treatments groups, event though, quails fed dietary 0.2% of PSE supplementation presented the greatest (P≥0.05) numerically enhancement in BW and BWG compared with other dietary treatments groups.
2- Quails fed dietary 0.2 or 0.6% PSE presented the greatest numerical FCR compared with other treatments groups.
3-Quails fed dietary 0.6% PSE supplementation presented the highest numerical (p>0.05) carcass, liver and edible weights compared with other dietary treatments groups. While, the best numerically gizzard% was calculated for birds fed diet contained 0.2% PSE supplementation.
4- A numerically enhancement (P≥0.05) was recorded in EE digestibility coefficients for diet contained 0.4% PSE supplementation, even though, diet contain the highest level of PSE (0.6%) recorded the best enhancement in CF digestibility% compared with other treatments groups.
5- Lowest (P≥0.05) values of DM, OM, CP, and NFE digestibility coefficients were recorded for supplemented diets with PSE at grade levels compared with control diet.
6- All groups fed PSE at all levels presented numerically improvement (P>0.05) in all hematological parameters studied compared with control diet.
7- Quails received dietary 0.2% PSE supplementation presented a slightly numerically enhancement (P>0.05) in all hematological parameters compared with other dietary treatments groups.
8- Birds fed dietary 0.6% of PSE supplementation presented the greatest (P≤0.01) improvement in TP compared with other dietary treatments.
9- Birds received control diet presented the highest (P≥0.05) values of ALT compared with others fed the incorporated diets at all levels.
10- The best (P≥0.01) values of AST was shown for quails fed diets contain PSE at all levels compared with control diet.
11- The lowest (P≥0.01) values of HDL was shown for quails fed diets contain PSO at all levels compared with control diet.
12- Birds fed 0.6% PSE supplementation shown the lowest (P≤0.01) value of triglycerides compared with other treatments.
13- Cholesterol, glucose, WBC’s Nx103/micro liter, Lymphocytes, %, Monocytes, % and Heterophil values did not affect as a result of using PSE supplementation in Japanese quails diets.
14- The lowest (P≤0.05) WBC’s Nx103/micro liter and Lymphocytes,% values were estimated for quails fed the control diet in comparison of others fed PSE supplemented diets at all levels.
15- The highest (P≥0.05) numerical values of Monocytes,% reported for quails received dietary 0.2% PSE supplementation.