饲料砷污染对蛋鸡生产性能、蛋品质及抗氧化性能的影响  

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

作　　者：蒋媛婧[1] 袁超[1] 宋华慧[1] 邹晓庭[1] 

机构地区：[1]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

出　　处：《动物营养学报》2013年第11期2720-2726,共7页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家蛋鸡产业技术体系建设专项基金资助(CARS-41-K17)

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。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.

关 键 词：砷污染 蛋鸡 生产性能 蛋品质 抗氧化性能 

分 类 号：S831[农业科学—畜牧学]