| Titles |
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English :
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The optimum use of dry-fat sources in broiler diets
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Arabic :
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الاستخدام الامثل لمصادر الدهون الجافة في علائق كتاكيت التسمين
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| Abstract |
Two experiments were conducted to evaluate three different sources of dry -fat in broiler diets. At first, the fatty acids profile of the tested dry-fat sources and their metabolizable energy values were determined. The ratio between unsaturated to saturated fatty acids was found to be 2.13 (KDF), 1.80 (CDF) and 1.54 (DDF), and their ME values were 8294,8134 and 7975 kcal/kg, respectively.
In the first experiment, KDF (Kem dry fat),CDF (calcium dry fat) and DDF (Duna dry fat) ; each was incorporated at the rate of 4% in broiler diet ,either individually or in double or triple mixture to investigate their effects on growth performance, nutrients digestibility; carcass traits, blood ,constituents, tibia minerals and technical and economical efficiency. Results showed that supplementing broiler diet with 4% Kem dry fat (KDF), with higher Tu/Ts ratio, is beneficial to improve growth performance and money return from feeding broilers, particularly under conditions of the continuous increasing in the price of edible oil/fat sources. In the second experiment a specific phospholipid (Lysoforte) was evaluated in broiler diet containing the best dry fat resulted from the first experiment being KDF, under two metabolizable energy values, compared to mixture of liquid vegetable oils. Data indicated that broilers fed diets with high energy level, supplemented with either dry-fat oil or oils mixture and fortified with lysoforte surpassed the other treatments. Accordingly, it seems that identification of the fatty acids profile appears to be necessary before dry-fat sources can be included in broiler diets, and this may reflects on the energy value of dry-fat which will affect on the performance and feed utilization of broilers. On the other hand, emulsifiers have been shown to be ineffective particularly when the dray fat composed mainly of vegetable oils. In addition, it is preferable to use emulsifiers just in case of increasing dietary energy level using dry fat vegetable oil.
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| Publication year |
2008
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| Pages |
119
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| Availability location |
مكتبة معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى - الجيزة
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| Availability number |
1093
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| Organization Name |
Animal Production Research Institute (APRI)
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| Country |
Egypt
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| Author(s) from ARC |
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AGROVOC
TERMS |
Blood composition.
Broiler chickens.
Carcass composition.
Economic analysis.
Energy value.
Fatty acids.
Performance testing.
Plant oils.
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| Proposed Agrovoc |
dry-fat sources;
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| Publication Type |
PhD Thesis
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