Reduction of Dexamethasone-induced oxidative stress and lipid peroxidation in laying hens by dietary vitamin E supplementation
Abstract: The objective of the present study is to research the effect of dietary vitamin E (Vit. E) on laying performance, lipid peroxidation and antioxidative status in laying hens under experimentally induced oxidative stress conditions via Dexamethasone (DEX) administration. A total of 60 Egyptian local strain (Gimmizah) laying hens at 36 weeks of age were housed in individual cages in an open-sided building under a 16 hr light: 8 hr dark lighting schedule. The birds were randomly divided into four experimentally treatments: DEX (4 mg/hen/day); Vit. E (200 mg/kg diet); DEX+Vit. E (4 mg/hen/day+ 200 mg/kg diet respectively); and control (n= 15). The birds were provided with commercial feed and water ad libitum. All treatments lasted for 7 successive days. Oxidative stress induced by DEX injections significantly reduced egg production and egg weight. Vit. E alleviated this reduction when supplemented to the stress-induced hens, compared to DEX treatment. A high level of yolk lipid oxidation was associated with oxidative stress treatment and it was reduced by Vit E supplementation. It could be concluded that supernutritional levels of Vit E (200 mg/kg diet) may contribute in enhancing laying performance and antioxidative status of laying hens under stress conditions.
Keywords: Oxidative stress, egg production, vitamin E, laying hens.
Publication year 2008
Pages 28-40
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
serial title Emir. Journal Food Agricultural
Web Page
Author(s) from ARC
External authors (outside ARC)
    يحيى عيد جامعة كفر الشيخ
    طارق عبيد جامعة كفر الشيخ
    محمد الحباك جامعة كفر الشيخ
Agris Categories Animal feeding
AGROVOC
TERMS		 Egg production. Layer chickens. Lipid peroxidation. Oxidation. Stress. Vitamin e.
Proposed Agrovoc antioxidative status;
Publication Type Journal
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