动物营养学报2012，Vol.24Issue(11)：2243-2248,6.DOI:10.3969/j.issn.1006-267x.2012.11.024
维生素E对冷应激下蛋种鸡生产性能、蛋品质及蛋黄和组织中α-生育酚含量的影响
Effects of Vitamin E on Performance, Egg Quality, Yolk and Tissue α-Tocopherol Contents of Breeding Hens under Cold Stress
摘要
Abstract
: This experiment was conducted to study the effects of dietary vitamin E on performance, egg quality , yolk and tissue a-tocopherol contents of breeding hens under cold stress. A total of 288 Hy-Line brown breeding hens, 39 weeks old, were used and divided into six groups randomly with four replicates per group. The basal diet contained 2. 375 mg/kg vitamin E. The vitamin E in the form of DL-a-tocopheryl acetate was added to the diets at a level of 0, 20, 50, 80, 160 or 320 mg/kg. Preliminary trial period was 2 weeks and experimental period was 8 weeks. The results showed as follows: compared with 0 mg/kg group, the laying rate was increased when 80, 160 and 320 mg/kg vitamin E were added (P<0.01) ; the 160 mg/kg group was highest, while the 320 mg/kg group tended to decline(P>0.05). Effect of dietary treatment was not observed in egg quality (P>0.5). The a-tocopherol contents of yolk, liver and heart were increased linearly, and effect of dietary treatment was not observed in kidney. The results suggest that dietary vitamin E can alleviate the performance decrease caused by cold stress in Hy-Line brown breeding hens, meanwhile increase the a-tocopherol content of yolk, liver and heart. [Chinese Journal of Animal Nutrition, 2012, 24(11) :2243-2248]关键词
冷应激/维生素E/生产性能/α-生育酚/蛋种鸡/蛋品质Key words
cold stress/ vitamin E/ performance/ a-tocopherol/ breeding hens/ egg quality分类
农业科技引用本文复制引用
张宏馨,黄仁录,郭小虎,杨秋霞,陈辉..维生素E对冷应激下蛋种鸡生产性能、蛋品质及蛋黄和组织中α-生育酚含量的影响[J].动物营养学报,2012,24(11):2243-2248,6.基金项目
国家蛋鸡产业技术体系(CARS-41-K18) （CARS-41-K18）
