Effects of high dietary energy, with high and normal protein levels, on broiler performance and production characteristics
المؤلفون المشاركون
Salih, Ilham S.
Abd al-Hafiz, Hassan M.
Yusuf, Ibrahim M. I.
Hamidah, Manal B. M.
Tawfiq, Samar sayyid
المصدر
Journal of Veterinary Medical Research
العدد
المجلد 23، العدد 1 (30 يونيو/حزيران 2016)، ص ص. 35-49، 15ص.
الناشر
جامعة بني سويف كلية الطب البيطري
تاريخ النشر
2016-06-30
دولة النشر
مصر
عدد الصفحات
15
التخصصات الرئيسية
الملخص EN
This study was conducted to investigate the effect of high metabolizable energy diets with normal or wide metabolizable energy to crude protein ratios (ME:CP) on the performance, carcass characteristics, body composition and blood parameters of broilers fed from 1 to 56 days of age.
The chicks were allotted into 7 groups; one control and 6 tested.
The birds were fed starter, grower and finisher diets.
The control diet was formulated according to the NRC of poultry (1994) and the other six diets contained three different levels of high energy diets (3275, 3350 & 3425 kcal/kg; one level for each two groups).
The first three tested groups were pointed for as the ''normal calorie-protein ratio” groups in which the CP increased in relation to the increased ME, keeping the normal NRC ratio.
In the second three tested groups, named “wide calorie-protein ratio” groups, the dietary protein was kept at the NRC levels leading to ratios wider than that of the NRC.
Results showed that chicks fed high ME diets with normal energy to protein ratio grew faster, and used feed more efficiently than chicks fed the control diets.
However, feeding diets with high ME and normal protein NRC-levels slightly improved the weight and feed conversion.
The visible fat and fat retained in the body was higher in all tested groups compared to the control.
However, the blood parameters had no significant variations among the treatments, except for ALT which had an increased response to increased dietary energy density.
In conclusion, increasing the dietary ME level without increasing the crude protein level provided moderately economic returns and lesser improvement in the performance of broilers.
However, increasing of dietary ME with normal ME:CP ratio resulted in increased broiler performance and higher economic return.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Abd al-Hafiz, Hassan M.& Salih, Ilham S.& Tawfiq, Samar sayyid& Yusuf, Ibrahim M. I.& Hamidah, Manal B. M.. 2016. Effects of high dietary energy, with high and normal protein levels, on broiler performance and production characteristics. Journal of Veterinary Medical Research،Vol. 23, no. 1, pp.35-49.
https://search.emarefa.net/detail/BIM-726024
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Abd al-Hafiz, Hassan M.…[et al.]. Effects of high dietary energy, with high and normal protein levels, on broiler performance and production characteristics. Journal of Veterinary Medical Research Vol. 23, no. 1 (2016), pp.35-49.
https://search.emarefa.net/detail/BIM-726024
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Abd al-Hafiz, Hassan M.& Salih, Ilham S.& Tawfiq, Samar sayyid& Yusuf, Ibrahim M. I.& Hamidah, Manal B. M.. Effects of high dietary energy, with high and normal protein levels, on broiler performance and production characteristics. Journal of Veterinary Medical Research. 2016. Vol. 23, no. 1, pp.35-49.
https://search.emarefa.net/detail/BIM-726024
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 47-49
رقم السجل
BIM-726024
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر