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العنوان
EFFECT OF SOME RUMINAL BACTERIA ON DIGESTION charACTERISTICS IN RUMINANTS \
المؤلف
ABD EL MAKSOUD, AMIRA MOHAMED ABDO.
هيئة الاعداد
باحث / أميرة محمد عبده عبد المقصود
مشرف / هانى محمود جادو
مشرف / حمدى موسى متولى
مشرف / عمرو على الجزيرى
تاريخ النشر
2019.
عدد الصفحات
109 p. :
اللغة
الإنجليزية
الدرجة
ماجستير
التخصص
علم الحيوان والطب البيطري
تاريخ الإجازة
1/1/2019
مكان الإجازة
جامعة عين شمس - كلية الزراعة - الإنتاج الحيواني
الفهرس
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Abstract

The present study was conducted, at the Department of Animal nutrition. Animal Production Research Institute (APRI) and Rumen Department of Animal Production lab, Faculty of Agriculture, Ain Shams University, Cairo, Egypt.
Four agricultural by products used usually as roughages in ruminant diets were incubated with five different ZAD concentrations for four different times. Roughages used were rice straw (RS), Wheat straw (WS), corn stover (CS) and sugarcane bagasse (SCB).
ZAD concentrations were (0, 0.5, 1, 1.5 and 2 ml/kg) in a solution of water, Urea and molasses. Ensiling incubation periods were (1, 2, 3 and 4 weeks). Effect of ZAD on chemical composition, in vitro experimental during different periods (12, 24, 48 and 72 h.) for concentrations (0, 1 and 2 ml/kg) of ZAD and bacterial count was recorded for the tasted roughages. Results indicated that:
1. Treatments increased CP, EE, and decreased CF of all roughages used in the present study.
2. Effect of treatments was significant and clear after 3 and 4 weeks of ensiling.
3. ZAD concentrations had similar effects above 0 ml/ kg DM.
4. SCB was the most affected roughage by treatments.
5. In vitro study showed that SCB was the highest in total gas production (TGP).
6. The highest DMD was observed for CS with ZAD concentration of 2 ml/ kg and after 48 hrs. of incubation.
7. The highest bacterial count was observed with WS treated with 2 ml/kg of ZAD and incubated for 4 weeks.
It can be concluded that ZAD treatment increase CP and EE of all roughages and decrease CF content by about 27%. Also, treatments may increase percentage of DMD as indicator for digestion.
It was recommended to add ZAD probiotic with 1 ml/kg DM and incubate for four weeks to improve the utilization of the experimental roughages.