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Egg production, egg quality, and lipid peroxidation status in laying hens maintained at a low ambient temperature (6°C) and fed a vitamin C and vitamin E-supplemented diet

O. Kucuk, N. Sahin, K. Sahin, M. F. Gursu, F. Gulcu, M. Ozcelik and M. Issi
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O. Kucuk: Department of Animal Nutrition, School of Veterinary Medicine, University of Firat, Elazig, Turkey
N. Sahin: Veterinary Control and Research Institute of Ministry of Agriculture, Elazig, Turkey
K. Sahin: Department of Animal Nutrition, School of Veterinary Medicine, University of Firat, Elazig, Turkey
M. F. Gursu: Department of Biochemistry, School of Medicine, University of Firat, Elazig, Turkey
F. Gulcu: Department of Biochemistry, School of Medicine, University of Firat, Elazig, Turkey
M. Ozcelik: Veterinary Control and Research Institute of Ministry of Agriculture, Elazig, Turkey
M. Issi: Department of Internal Disease, School of Veterinary Medicine, University of Firat, Elazig, Turkey

Veterinární medicína, 2003, vol. 48, issue 1-2, 200

Abstract: This experiment was conducted to evaluate the effects of vitamin C (L-ascorbic acid) and vitamin E (?-tocopherol acetate) on egg production, egg quality, lipid peroxidation status (measured as MDA), and some serum metabolites in laying hens (Hy-Line) maintained at a low ambient temperature (6°C). One hundred and twenty laying hens (18-wk-old) were divided into four groups, 30 hens per group. The laying hens were fed either a basal diet or the basal diet supplemented with either 250 mg of L-ascorbic acid/kg of diet, 250 mg of ?-tocopherol acetate/kg of diet or 250 mg of L-ascorbic acid plus 250 mg of ?-tocopherol acetate/kg of diet. Although feed consumption of the hens was similar (P > 0.05) among treatments, supplemental vitamin C and E significantly increased final body weight, egg production, and improved feed efficiency (P < 0.05). Egg weights were also greater (P < 0.05) in hens supplemented with the combination of vitamin C and E than that of hens supplemented either vitamin or no vitamin (control). Haugh unit did not change upon each vitamin supplementation, but the combination of the vitamin supplement yielded a higher Haugh unit (P < 0.05). Each dietary supplement of vitamin C and vitamin E improved the egg quality (P < 0.05) resulting in a greater specific gravity, thicker egg shell, and heavier egg shell weight. Separately or as a combination, supplemental vitamin C and E decreased MDA, glucose, cholesterol, and triglyceride concentrations (P < 0.05). Results of the present study showed that supplementing vitamin C and vitamin E, particularly as a combination, improved the performance of cold-stressed laying hens, offering a potential protective management practice in preventing cold stress-related losses in performance of laying hens. Results of the present study also indicated that the effects of vitamin C and vitamin E are additive.

Keywords: cold stress; vitamin C; vitamin E; laying hen; egg production; lipid peroxidation (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlvet:v:48:y:2003:i:1-2:id:5747-vetmed

DOI: 10.17221/5747-VETMED

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