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Register a new userتأثير طول فترة تخزين بيض التفريخ في بعض المؤشرات الإنتاجية لفروج التسمين ( الهجين روس )
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جامعة الفرات رسالة ماجستير
Publication date
2011
fields
Agricultural Engineering
and research's language is
العربية
Created by
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أجريت هذه الدراسة على 800 بيضة أخذت من قطيع أمهات دجاج اللحم من الهجين التجاري (روس) بعمر 7-8 أشهر وقسم البيض حسب الورزن إلى مجموعتين (45-55) غ و (56-65)غ
No English abstract
References used
زكريا عبد الحميد (1992) الجنين - منشورات كلية الزراعة جامعة دمشق
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أجري البحث في مدجنة خاصة تقع في المدينة الصناعية على بعد حوالي 10 كم من مدينة دير الزور وقد ربيت الطيور بعمر واحد وحتى ست أسابيع
This study was conducted in Tartus cattle station, on 14 Holishtain-Frisian calves at
the weaning age (12 weeks) in order to evaluate the effect of Methionine addition on the
productive parameters. The calves were divided in three groups, the first
one was
considered as a control, the second was fed on milk with 0.2% methionine, whereas the
third one on milk with 0.4% methionine.
The results showed that the Methionine addition to the diet of calves during the
weaning period, increased the daily growth rate after weaning, so this increase was 14%.
Our results also showed that the addition of Methionine improved the feed conversion
ratio after weaning.
The research was carried out on 1774 chicks of sexual separate chicken from
the hybrid Hibrd. The chicks were distributed into five groups, every group
contained three repelications, and the chicks were fattened until the age of six
weeks. The pro
gram of feeding and sex was as the following in every group:
The first group /control/: Its birds were both male and female /not sexual
separate fattening/, they were fed on three vegetal mixtures
according to age stages.
The second group: Its birds were only male, and it was fed on three vegetal
mixtures according to age stages /the mixtures of control group /.
The third group: Its birds were only female, and it was fed on three vegetal
mixtures according to age stages /the mixtures of control group/.
The fourth group: Its birds were only male, it was fed according to age stages
on three vegetal mixtures, which were distinguished by there high
content of metabolic energy and raw protein, with comparison
between them and the mixtures of control group.
The fifth group: Its birds were only female, it was fed on three vegetal
mixtures, according to age stages, which were distinguished by
there low content of metabolic energy and raw protein with
comparison between them and the mixtures of control group.
أجريت هذه الدراسة في مبقرة طرطوس لدراسة إمكانية استخدام الحمض الأميني الميثيونين أثناء فترة الفطام والتي تعتبر مرحلة حساسة جداً للعجول حيث يتحول فيها من حيوان وحيدة المعدة الى حيوان مجتر
The research was carried out on two classes of hatching eggs obtained
from broiler breeder flock ( shifer starbro- Hybird ) 39 and 59 wk of age .
In each class the hatching eggs were graded into three groups according
to their weights.
The hatchi
ng eggs of each group were divided into three replicates .
Eggs of all replicates were incubated in the same incubator . At hatching
(115) chicks were taken from each replicate and fed in separate pen until 7
weeks of age . All conditions of housing, rearing and feeding
( vegetable diets ) were same for all birds of all replications.
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