茶多酚对蛋鸡生产性能、蛋品质和抗氧化能力的影响

发布时间：2018-02-28 23:28

本文关键词： 茶多酚蛋鸡生产性能蛋品质抗氧化能力　出处：《动物营养学报》2017年01期 　论文类型：期刊论文

【摘要】：本试验旨在研究茶多酚(TP)对蛋鸡生产性能、蛋品质和抗氧化能力的影响。试验选用450只24周龄的健康海兰灰产蛋鸡,分为5个组,每组6个重复,每个重复15只鸡。对照组饲喂基础饲粮,试验组分别在基础饲粮中添加40、80、200和400 mg/kg TP。试验期63 d,其中预试期7 d、正试期56 d。结果表明,与对照组相比:1)400 mg/kg TP显著降低了试验期前4周的平均蛋重(P0.05);200 mg/kg TP显著改善试验期后4周的料蛋比(P0.05);TP未显著影响产蛋率和平均日采食量(P0.05)。2)饲粮中添加TP未显著影响蛋形指数、蛋壳强度、蛋壳厚度、蛋白高度、哈夫单位和蛋黄颜色(P0.05)。3)TP显著提高了血浆总超氧化物歧化酶(T-SOD)和谷胱甘肽过氧化物酶(GPx)活性(P0.05);显著提高试验期第8周时血浆总抗氧化能力(T-AOC)(P0.05)。4)TP显著提高了肝脏和蛋黄T-AOC和T-SOD活性(P0.05);显著降低肝脏和蛋黄中丙二醛(MDA)含量(P0.05)。由此可见,饲粮中添加TP未显著影响蛋鸡蛋品质;400 mg/kg TP降低了平均蛋重,200 mg/kg TP改善了料蛋比,两者均提高了蛋鸡的抗氧化能力,其中以200 mg/kg组效果最佳。
[Abstract]:The purpose of this study was to study the effects of tea polyphenols (TP) on the performance, egg quality and antioxidant capacity of laying hens. 450 healthy Hailan grey laying hens aged 24 weeks were divided into 5 groups with 6 replicates in each group. The control group was fed with basic diet, and the experimental group was fed with 40,80,200 and 400 mg/kg TP.The experiment period was 63 days, of which the pretest period was 7 days, and the trial period was 56 days. Compared with the control group, compared with the control group, the average egg weight in the first four weeks of the trial period was significantly decreased, and the average egg weight (P0.05N) 200 mg/kg TP was significantly decreased. The feed to egg ratio (P0.05TTP) did not significantly affect the egg laying rate and the average daily intake (P0.05N 路2). The egg shape index was not significantly affected by TP supplementation in the diet. Eggshell strength, eggshell thickness, protein height, The activities of plasma total superoxide dismutase (T-SOD) and glutathione peroxidase (Glutathione peroxidase) (GPX) were significantly increased in Hafu unit and egg yolk, and the total antioxidant capacity of plasma was significantly increased at the 8th week of the trial period. 4TP significantly increased the liver and egg yolk. The activity of T-AOC and T-SOD decreased significantly the content of malondialdehyde (MDAA) in liver and egg yolk. The addition of TP in diet did not significantly affect egg quality and egg quality (400 mg/kg TP). The average egg weight of 200 mg/kg TP decreased and the feed / egg ratio was improved. Both of them improved the antioxidant ability of laying hens, and the effect of 200 mg/kg group was the best.
【作者单位】：中国农业科学院饲料研究所农业部饲料生物技术重点开放实验室生物饲料开发国家工程研究中心;
【基金】：家禽产业技术体系北京市创新团队(CARS-PSTP) 国家科技支撑计划(2011BAD26B03) 现代农业产业技术体系(CARS-41-K13)
【分类号】：S831.5

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