饲粮维生素E添加水平对蛋种鸭产蛋性能、蛋品质及抗氧化性能的影响  

Effects of Dietary Vitamin E Supplemental Level on Laying Performance,Egg Quality and Antioxidant Performance of Breeding Laying Ducks

作　　者：王爽 黄路生 张亚男 陈伟 黄雪冰 夏伟光 李凯潮 王胜林 郑春田 WANG Shuang;HUANG Lusheng;ZHANG Yanan;CHEN Wei;HUANG Xuebing;XIA Weiguang;LI Kaichao;WANG Shenglin;ZHENG Chuntian(Guangdong Key Laboratory of Animal Breeding and Nutrition,Guangdong Public Laboratory of Animal Breeding and Nutrition,Key Laboratory of Animal Nutrition and Feed Science in South China,Ministry of Agriculture,State Key Laboratory of Livestock and Poultry Breeding,Institute of Animal Science,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,China)

机构地区：[1]广东省农业科学院动物科学研究所,畜禽育种国家重点实验室,农业部华南动物营养与饲料重点实验室,广东省动物育种与营养公共实验室,广东省畜禽育种与营养研究重点实验室,广州510640

出　　处：《动物营养学报》2022年第9期5777-5784,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：财政部和农业农村部—国家现代农业产业技术体系资助(CARS-42-13);广东省自然科学基金(2019A1515012231);广东省水禽产业技术创新团队(2019KJ137);科技部外专局项目(QNL20200130001);广东省科技计划项目(2019A050505007,2021A0505050003);畜禽育种国家重点实验室开放课题(2021GZ06);院杰出团队项目(202106TD)。

摘　　要：本试验旨在研究饲粮维生素E添加水平对蛋种鸭产蛋性能、蛋品质及抗氧化性能的影响,为维生素E在蛋鸭饲粮中的合理应用提供参考依据。采用单因素完全随机试验设计,选择健康、体重接近的120日龄福建龙岩麻鸭504只,随机分为6个组,每组6个重复,每个重复14只。各组饲粮维生素E添加水平为0(对照)、12.5、25.0、50.0、100.0和200.0 mg/kg。试验期24周。结果表明:1)与对照组相比,饲粮维生素E添加水平为12.5 mg/kg时,产蛋率和日产蛋重显著升高(P<0.05),料蛋比显著降低(P<0.05)。2)与对照组相比,饲粮维生素E添加水平为100.0和200.0 mg/kg时,蛋黄丙二醛(MDA)含量显著降低(P<0.05)。3)与对照组相比,饲粮维生素E添加水平为12.5、25.0、50.0、100.0和200.0 mg/kg时,血浆和肝脏MDA含量显著降低(P<0.05)。4)与对照组相比,饲粮维生素E添加水平为100.0和200.0 mg/kg时,肝脏核因子E2相关因子2(Nrf2)mRNA相对表达量显著降低(P<0.05)。由此可见,饲粮添加维生素E可降低蛋种鸭机体脂质过氧化水平,饲粮维生素E添加水平为12.5 mg/kg时可获得最好的产蛋率、日产蛋重及料蛋比,更高的维生素E添加水平对产蛋性能没有显著的改善作用。This experiment was conducted to study the effects of dietary vitamin e supplemental level on laying performance,egg quality and antioxidant performance of breeding laying ducks,to provide reference for the rational application of vitamin E in the diet of laying ducks.A single factor completely randomized experimental design was adopted,a total of 504 healthy 120-day-old Fujian Longyan ducks with similar body weight were randomly divided into 6 groups with 6 replicates in each group and 14 ducks in each replicate.The dietary vitamin E supplemental levels in each group were 0(control),12.5,25.0,50.0,100.0 and 200.0 mg/kg,respectively.The experiment lasted for 24 weeks.The results showed as follows:1)compared with the control group,the laying rate and daily egg weight were significantly increased when dietary vitamin E supplemental level was 12.5 mg/kg(P<0.05),and the feed to egg ratio was significantly decreased(P<0.05).2)Compared with the control group,the yolk malondialdehyde(MDA)content was significantly decreased when dietary vitamin E supplemental level were 100.0 and 200.0 mg/kg(P<0.05).3)Compared with the control group,the plasma and liver MDA content was significantly decreased when dietary vitamin E supplemental level were 12.5,25.0,50.0,100.0 and 200.0 mg/kg(P<0.05).4)Compared with the control group,the liver nuclear factor E2-related factor 2(Nrf2)mRNA relative expression level was significantly decreased when dietary vitamin E supplemental level were 100.0 and 200.0 mg/kg(P<0.05).In summary,dietary vitamin E supplementation can decrease the body lipid peroxidation level of breeding laying ducks,it gets the best laying rate,daily egg weight and feed to egg ratio when dietary vitamin E supplemental level is 12.5 mg/kg,and the higher vitamin E supplemental levels have no significantly improving effect on laying performance.

关 键 词：蛋种鸭 维生素E 产蛋性能 蛋品质 抗氧化 

分 类 号：S834[农业科学—畜牧学]