الفهرس 
IntroductionOnly 14 pages are availabe for public view
 |  | from | 131 |  |  |
| | | from | 131 | | |
Abstract
This study was conducted to study the effect of adding different levels (0.2%, 0.4% and 0.6%) of Moringa oleifera leaves meal as feed supplementation in Japanese quail diets on productive performance, carcass characteristics, digestibility of nutrients and economic efficiency. Three hundred, one day old, unsexed growing Japanese quail were divided into 4 groups (75 birds each) in 3 replicate according to levels of Moringa leaves (0.0, 0.2, 0.4 and 0.6%). The sequence of the 4 dietary treatments was as follow:- control (without additives), control supplemented with 0.2% Moringa oleifera leaves meal, control supplemented with 0.4% Moringa oleifera leaves meal, and control supplemented with 0.6% Moringa oleifera leaves meal.
Live body weight and feed intake was recorded weekly during the experiment period. Body gain and feed conversion (g, feed/g, gain) for each replicate within each week were calculated. No dead chicks were recorded due to the experimental treatments.
At the end of the experiment (6 weeks of age), a digestion trial was done to estimate how far dietary treatment could affect the digestibility of nutrients such as (DM, OM, CP, EE, CF and NFE).
Also, at 6 weeks of age (end of the experiment), representative samples of birds were randomly taken, starved for about 12 hours, then individually weighed. A total number of 24 birds was slaughtered and after complete bleeding, the birds were scalded and feathers were plucked. Carcasses were eviscerated, heads and shanks were separated, then the carcass were chilled in tap water for about 10 minutes.
The economical efficiency was calculated by Egyptian pound (L.E) according to the prices of year 2017.
Obtained results declare that adding Moringa leaves as feed supplementation to Japanese quail diet at the levels of 0.0, 0.2, 0.4 and 0.6% during different ages could be summarize as follows:-
1- The greatest numerically (P≥0.05) body weight was recorded for birds fed the dietary 0.4% and 0.6% MOLM followed by birds fed dietary 0.2% MOLM in comparison with the control diet.
2- Birds fed the higher (P≥0.05) level of Moringa recorded the best numerically (P≥0.05) values of body gain in comparison with the low level of each additive and the control diet.
3- During the entire period of the experiment (0 to 6 weeks of age), the greatest (P≤0.05) feed intake was recorded for birds fed dietary 0.2% followed by birds fed dietary 0.4% Moringa compared with other dietary treatments (control or 0.6% MOLM).
4- The whole experimental period (0 to 6 weeks of age) offered numerically improvement in feed convection for birds fed on dietary 0.6 or control compared with other treatment.
5- In general, birds fed dietary MOLM at all levels recorded numerically improvement (P>0.05) in the absolute weight of the previse items compared to the control diet.
6- Adding MOLM at level 0.2% to Japanese quill diets as feed supplementation improved (P>0.05) dressing percentage, However, adding 0.4% MOLM recorded the best liver proportions, therefore, the level of 0.4% MOLM achieved the best edible % compared to the other treatments .
7- No significant differences between dietary treatments in the digestibility coefficients for all nutrients of the diets.
8- Birds fed dietary control recorded the best insignificant value of coefficients for all nutrients compared with all levels of dietary Moringa.
9- Birds fed control or 0.2% MOLM diets recorded the greatest numerically (P≥0.01) crude fiber digestibility compared with other dietary treatments.
10- Birds fed low levels of MOLM (0.2 and 0.4%) recorded the greatest (P≥0.05) crude protein digestibility compared with the others fed higher level of MOLM additions (0.6%).
11- Adding Moringa oleifera leaves meal to growing Japanese quail diets at different levels of (MOLM) recorded the lower values of economical efficiency, relative economical efficiency and net revenue compared with the control diet.