维生素E水平和应激对雏鸡血浆皮质酮浓度的影响

Abstract

Abstract: In order to evaluate the effects of supplemental levels of dietary vitamin E and immune stress on serum concentrations of corticosterone (CORT) of chickens, 540 one-day-old chickens (White Leghorn, WL) were fed diets with different vitamin E levels (0, 40 and 100 IU/kg). A completely randomized experimental design in a 3×3 factorial arrangement with 5 replications of 12 chickens per treatment was applied. Three different vaccinating ways were those for the first time at 5, 8 and 11 d respectively. The kinds of vaccines and the subsequent vaccinating intervals were identical. There were 5 repetitions per treatment, each containing 12 chickens. At the metaphase of experiment, each chicken was injected celiacly with E. coli lipopolysaccharide (LPS, 0.05 mg/chicken). Results showed that the supplementation of dietary vitamin E had significant impact on the serum concentrations of CORT.

Key words: vitamin E; immunological stress; chickens; corticosterone concentration

CLC Number:

S831.5

HAN Mu-jun;ZHAO Gui-ping;ZHAO Jing-peng;ZHENG Mai-qing;WEN Jie. Effects of Supplemental Levels of Dietary Vitamin E and Immune Stress onSerum Concentrations of Corticosterone in Laying Hens[J]. , 2009, 36(7): 60-62.

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Effects of Supplemental Levels of Dietary Vitamin E and Immune Stress onSerum Concentrations of Corticosterone in Laying Hens

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