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Register a new userدراسة تأثير مستوى البروتين الخام والمثيونين والكولين في الأداء الإنتاجي للفري الياباني ( السمان) تحت الظروف المحلية
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Damascus University أطروحة دكتوراه
Publication date
2016
fields
Agricultural Engineering
and research's language is
العربية
Created by
Shamra Editor
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دراسة تأثير مستوى البروتين الخام والمثيونين والكولين في الأداء الإنتاجي للفري الياباني ( السمان) تحت الظروف المحلية
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References used
الرباط . فؤاد, حسن . عيسى 1986 التغذية العلمية للدواجن ( الجزء العلمي) جامعة دمشق
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Thirty weaned Awassi lambs (٧٥ days old), reared in the metabolic unit at
the College of Agriculture, University of Damascus, were randomly divided into
٥ groups to study the effect of consumed crude protein level available in the
rations on the daily gain rate, live body weight and the food converting rate.
The aim of the study was to determine the effect of dietary
supplementation of some organic acids (Propionic acid, butyric
acid,) on the performance and some blood biochemical profile of
quails.
Seventy five (75) one day old unsexed Japanese quai
l chicks were
used in this study and distributed randomly into three treatments per
each treatment (25 chicks) commercial Japanese quail chicks were
used for 42 days..
This study was carried out at the poultry experimental station, Technical
Institute of Agriculture, Damascus University, Kharbo. 270 of Japanese Quail
birds, one day of age were divided equally into 3 similar groups (90each). Every
group comprised
of 3 replicates of 30 each, each replicates contained 10 cages.
Birds were housed and managed under similar conditions throughout the
experimental period which lasted from the 8 to 22 weeks of age. The birds were
fed on rations recommended by NRC and contained 1, 0.65 or 2 of DLmethionine
g/kg of ration in the first (the control), second and third groups
respectively. Results showed that using ration contained 2g DL-methionine/
1kg of ration gave a significant increase in egg weight, production and
economical efficiency value as compared to the other used rations.
يشكل القمح أساس نشأة الحضارات القديمة مثل الحضارة المصرية حضارة بلاد الرافدين وحضارتي بابل واشور ويعد القمح المحصول الغذائي الأول في كافة انحاء العالم
An experiment was carried out using 280 unsexed chicks of a
commercial broiler breed taken randomly from a hatchery after the
start of hatching. The chicks were distributed into four groups of 70
chicks each. The chicks were fed a certain type of
mash feeding for
7 days as follows:
The chicks of the 1st group were given the basal diet directly after
hatching containing 1.2% lysine, This diet is conformed to the
American feed tables of (NRC, 1994).
The 2nd and the 3rd group of chicks were given the diet directly
after hatching but containing 1.45%, 1.70% lysine respectively, and maintaining the rest of the nutrients as in the basal diet.
The chicks of 4th group were given the diet directly after hatching,
but containing 24% protein, and maintaining the rest of the
nutrients as in the basal diet.
After 7 days the chicks of four groups fed a broiler pellet
commercial diet until the age of 42 days.
The results showed the importance of adding lysine to the diet
directly after hatching on the average live weight at the end of the
first week, the differences were significant (P ≤ 0.05) between the
chicks of the third group compared to chicks of the first group. It
was also noted that the increase in lysine in the diet is better than
increasing the crude protein to 24% (P ≤ 0.01) on the average live
weight at the end of the first week. No significant differences were
noticed among the average live weight of the chicks of all groups at
the end of the experiment
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