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Document Details
Document Type
:
Thesis
Document Title
:
THE INFLUENCE OF ENZYME PREPARATIONS ON THE NUTRITIONAL VALUE OF BARLEY-CORN BY PRODUCT DIETS FOR BROILER
تأثير التحضيرات الإنزيمية على القيمة الغذائية لأعلاف الشعير- النواتج الثانوية للذرة لكتاكيت اللاحم
Subject
:
Department of Arid Land Agriculture
Document Language
:
Arabic
Abstract
:
Four experimental studies were conducted to investigate the effect of partially replacing corn with barley and corn wet milling feed products (CWMFP) replacing soybean meal in broiler diets in combination with enzyme preparations on growth performance, carcass characteristics, meat quality, breast color, intestinal digesta viscosity, lymphoid glands, histological changes of gut and plasma constituents. In experiment 1, broiler were fed dietary treatments over three phases (Starter, Grower and Finisher). In experiment 2, dietary treatments included grower and finisher diets. In experiment 3, dietary treatments included grower phase. while in experiment 4 dietary treatments included the finisher phase. All diets were formulated to be iso-nitrogenous and iso-caloric. Experimental period lasted up to 42 days of age. Results could be summarized as follow: there were no positive beneficial effedcts due to dietary enzyme supplementation. Feeding broilers dietary treatments did not have any detrimental effect on digesta viscosity morphology of gut. Intestinal loads and liver of E-coli or salmonella were not changed by any of the dietary treatments. In conclusion replacing corn or soybean meal with barley or CWMFP in broilers diets caused a significant response of broilers productive performance to treatments according to phase feeding. Results of these trials indicated that yellow corn and soybean meal could be safely replaced in diet with a barley or CWMFP and fed positievely to broilers at older ages. Decisions whether to include barley or CWMFP in broiler diets should be based on their relative cost and availability.
Supervisor
:
Prof. Dr. Ahmed Ahmed Khalifa Eldeek
Thesis Type
:
Doctorate Thesis
Publishing Year
:
1433 AH
2012 AD
Co-Supervisor
:
Prof. Dr. Mohamed Abdulaziz Al-Harthi
Added Date
:
Tuesday, July 10, 2012
Researchers
Researcher Name (Arabic)
Researcher Name (English)
Researcher Type
Dr Grade
Email
أحمد عبدالعزيز العبدين
Al-Abdeen, Ahmed Abdulaziz
Researcher
Doctorate
Files
File Name
Type
Description
33908.pdf
pdf
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