الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The first Experiment:
An experiment was conducted to determine the effects on
growth performance, carcass characteristics and economic efficiency
of mid rib of date palm (MDP) when included in corn-soy diets for
Gemaza growing chicks. A total number of 150 one – day old Gemaza
chicks (local breed) were distributed equitable into 5 dietary
treatments in 3 replicates of 10 birds each. Five experimental diets in
each period (starting, growing and finishing) were formulated in
which (control diet) was 10% wheat bran, in the other MDP were
incorporated at levels 2.5, 5, 7.5 and 10% to obtained four
experimental diets (T1 – T4) respectively.
The results indicated that:
1- There were no significant differences in body weight, body weight
gain and feed conversion ratio between chicks fed control diets
and other treatments in different growth periods.
2- Chicks fed control diets or diets containing 10% MDP (T4)
significantly consumed less feed than the other dietary treatments
during starter (0-6 wks.) and whole experimental periods (0-12
wks.).
3- Carcass characteristics parameters (dressing, giblets, breast , thighs,
drumsticks and wings %) showed insignificant figures when
chicks fed diets containing MDP compared to those fed control
diets.
4- Tibia characteristics, it worth to note that the birds that fed different
levels of MDP (T1 – T4) reflected the lowest figures compared
with control diets.
5- Economic evaluation, the best economical efficiency value was
demonstrated when chicks that fed 10% MDP and the value was
61% more when compared with that of chicks that fed control
diets.
The second Experiment:
This experiment was conducted to determine the effect of
adding date waste (Mid rib of date palm, MDP) as a partial or
completely replacement of wheat bran in the diets of growing chicks
with or without some feed additives (enzyme mixtures and sodium
sulphate) on the growth performance, carcass traits and economic
efficiency. Three levels of MDP representing 0.0 (control), 2.5 (T1) or
5.0% (T2) were used during starting period, while during the growing
period they turned to 0.0(control), 5, 10% and during the finishing
period they switched to 0.0 (control), 7.5, 15% were used to replace
wheat bran in six dietary treatments. Starter, grower and finisher T3,
T4 and T5 diets were the same as T2 diets but supplemented with 200g
Allzyme / Ton, 5.0 Kg Zado / ton and 1.0Kg anhydrous sodium
sulphate (ASS) / ton respectively. 180 unsexed one day old hybreed
local strain (Saso × Gemmizah) chicks were distributed equally into 6
dietary treatments in 3 replicates of 10 birds each. At the end of the
experiment 3 birds from each treatment were randomly selected and
slaughtered for carcass and tibia measurements.
The results indicated that:
1- Chicks fed different levels of MDP T1 or T2 diets reflected the
lowest insignificant results in live body weight gain and worst
feed conversion ratio compared with the control group.
2- chicks fed MDP + different feed additives (T3, T4 and T5) gave
higher live body weight gain compared to those fed control
diets and chicks fed diets containing MDP + Zado (T4) or
MDP + ASS (T5) supported the highest body weight gain and
gave the better insignificant feed conversion ratio compared
with the other treatments.
3- No adverse effects of MDP inclusion at different levels with or
without different feed additives on carcass characteristics and
tibia measurements.
4- The results of economical evaluation showed that date palm
waste (MDP) could be included at 5, 10 and 15% in starter,
grower and finisher diets respectively supplemented with 5.0
kg Zado or 1.0 kg sodium sulphate / ton diets in order to get
higher economic efficiency without adverse effects on
productive performance or carcass traits of chicks until 12
weeks of age.
Keywords: Performance, fiber, enzyme, mid rib of date palm, tibia
characteristics, economic efficiency