研究简报 Short Communications

饲料砷污染对蛋鸡生产性能、蛋品质及抗氧化性能的影响

  • 蒋媛婧 ,
  • 袁超 ,
  • 宋华慧 ,
  • 邹晓庭
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  • 浙江大学饲料科学研究所, 农业部动物营养与饲料科学重点实验室, 杭州 310058

收稿日期: 2013-05-02

  网络出版日期: 2013-10-27

基金资助

国家蛋鸡产业技术体系建设专项基金资助(CARS-41-K17)

Arsenic Contamination in Feed Affects Performance, Egg Quality and Antioxidant Capacity of Laying Hens

  • JIANG Yuanjing ,
  • YUAN Chao ,
  • SONG Huahui ,
  • ZOU Xiaoting
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  • Key Laboratory of Animal Nutrition and Feed Science of Ministry of Agriculture, Feed Science Institute, Zhejiang University, Hangzhou 310058, China

Received date: 2013-05-02

  Online published: 2013-10-27

摘要

本试验旨在研究饲粮不同剂量的砷对蛋鸡生产性能、蛋品质及血清、肝脏和肾脏中抗氧化性能相关指标的影响。选用56周龄生产性能相近的"京红一号"蛋鸡320羽,随机分为4组,每组4个重复,每个重复20羽。对照组饲喂基础饲粮,试验组(T1、T2和T3组)分别饲喂在基础饲粮中添加17、34、51 mg/kg砷的试验饲粮。试验期8周。结果表明:1)各组间产蛋率、平均蛋重、平均日采食量和料蛋比均无显著差异(P>0.05)。2)与对照组相比,T1、T2和T3组第4周蛋壳强度分别降低了27.32%、17.86%和15.48%(P<0.05),T3组第4周的蛋白高度较对照组降低了17.33%(P<0.05)。第4周和第8周蛋黄颜色均随饲粮中砷含量的增加而下降,但差异不显著(P>0.05)。3)T3组血清巯基含量显著低于对照组(P<0.05)。4)与对照组相比,T3组肝脏中总超氧化物歧化酶活性显著降低(P<0.05),T2和T3组肝脏中丙二醛含量显著升高(P<0.05),各试验组肾脏超氧化物歧化酶活性均显著降低(P<0.05),T1和T3组肾脏谷胱甘肽过氧化物酶活性显著降低(P<0.05)。综上所述,饲料中砷污染可导致蛋品质降低,诱导脂质过氧化反应,降低蛋鸡抗氧化能力。

本文引用格式

蒋媛婧 , 袁超 , 宋华慧 , 邹晓庭 . 饲料砷污染对蛋鸡生产性能、蛋品质及抗氧化性能的影响[J]. 动物营养学报, 2013 , 25(11) : 2720 -2726 . DOI: 10.3969/j.issn.1006-267x.2013.11.027

Abstract

This experiment was conducted to study the effects of arsenic contamination in feed on performance, egg quality and antioxidant capacity of laying hens. Three hundred and twenty 56-week-old‘Jinghong No.1’laying hens with the similar performance were randomly allocated to 4 groups with 4 replicates per group and 20 layers per replicate. The control group was fed a basal diet and experimental groups (groups T1, T2 and T3) were fed the basal diets supplemented with 17, 34 and 51 mg/kg arsenic, respectively. The experiment lasted for 8 weeks. The results showed as follows: 1) there were no significant differences in laying rate, average egg weight, average daily feed intake and feed/egg ratio among all groups (P>0.05). 2) Compared with the control group, the eggshell strength in the groups T1, T2 and T3 was decreased by 27.32%, 17.86% and 15.48% at week 4,respectivly (P<0.05), and the albumen height in the T3 group was decreased by 17.33% at week 4 (P<0.05). Arsenic contamination has a tendency to reduce yolk color at weeks 4 and 8 (P>0.05). 3) The serum hydrosulfuryl content in T3 group was significantly lower than that in the control group (P<0.05). 4) Compared with the control group, the liver superoxide dismutase (SOD) activity in group T3 was significantly decreased (P<0.05), and the liver malondialehyde content in groups T2 and T3 was significantly increased (P<0.05); the kidney SOD activity in groups T1, T2 and T3 was significantly decreased (P<0.05), and the kidney glutathione peroxidase activity in groups T1 and T3 was significantly decreased (P<0.05). These results indicate that arsenic contamination can reduce the egg quality, induce the lipid peroxidation, and reduce the antioxidant capacity of laying hens.

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