| Titles |
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English :
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Effect of incorporating some copper compounds in the diet on productive, reproductive, physological and economical performance of the laying local chickens
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Arabic :
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تأثير اشافة بعض مركيات النحاس في العليقة على الاداء الانتاجى و التناسلى و الفسيولوجى و الاقتصادى للدجاج البياض المحلى
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| Abstract |
The experiment was conducted to determine the effect of supplementation dietary copper levels and source on productive, reproductive, physiological and economical performance of Mamourah laying hens. One hundred and twenty laying hens at 40 weeks of age were housed in individual cages and randomly distributed to 8 groups (15 laying hen each). Basal diet was contained 16% CP and 2761 Kcal / kg diet, supplemented with 4 dietary copper concentration (0.0; 125; 187.5; and 250 mg cu / kg diet) from two different sources (copper sulfate or copper chloride), and the feeding continuous for 84 days (3 x 28 periods). Results showed that, supplementation excess copper levels in the diet were not significantly affect on both of live body weight, egg number, egg mass (g / day), hen-day percentage, feed intake, feed conversion (g feed/ g egg), and copper level in plasma and yolk; while egg weight, hatchability percentage of fertile eggs, embryonic mortality percentage and chick weight at hatch were significantly(P<0.01) affected. Increasing dietary copper trom zero to 250 mg / kg diet significantly (P< 0.01) decreased cholesterol and total lipids in plasma and egg yolk. Economical efficiency percentage increased 26.64 % by addition 187.5 mg cu / kg diet as compared with control. Copper source effect significantly (P<0.01) on both egg number, hen day percentage, egg weight, fertility and hatchability percentages, chick weight at hatch, plasma cholesterol, yolk cholesterol and yolk total lipids, but live body weight, egg mass (g/day), feed intake, feed conversion (g feed / g egg), hatchability of fertile eggs, egg weight losses during incubation, embryonic mortality percentages; plasma total lipids and copper level in plasma and yolk were not significantly affected.
Economical efficiency percentage increased by 11.16 % in copper sulfate and 19.30 % copper chloride than control. Each oflive body weight and egg weight were increased significantly (P<0.01). Peed intake, plasma cholesterol and total lipids and egg yolk cholesterol and total lipids were decreased by advancing periods of production. It can be concluded that addition 187.5 mg cu /kg diet trom copper sulfate or 125 and 187.5 mg cu /kg diet trom copper chloride in laying hens diet may improve productive, reproductive and economical efficiency value and gave the best profit, also causing a reduction in egg yolk cholesterol and total lipids.
Key words: Copper source, fertility, hatchability, yoke cholesterol, yolk total lipids, and economical efficiency.
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| Publication year |
2005
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| Pages |
657-667
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| Availability location |
معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
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| Availability number |
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| Organization Name |
Animal Production Research Institute (APRI)
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| City |
سخا- كفر الشيخ
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| serial title |
Animal Production Research Institute Second Conference & Regional Symposium on Buffalo Production
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| Author(s) from ARC |
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| External authors (outside ARC) |
السيد عيسى عنانى
طب بيطرى جامعة الاسكندرية
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| Agris Categories |
Animal physiology - Reproduction
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AGROVOC
TERMS |
Economic analysis.
Egg hatchability.
Fertility.
Reproductive performance.
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| Proposed Agrovoc |
yolk total lipids;yoke cholesterol;Copper source;productive performance;physological performance;
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| Publication Type |
Conference/Workshop
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