饲粮维生素E添加水平对蛋种鸭繁殖性能及子代雏鸭生长性能、抗氧化性能的影响  

Effects of Dietary Vitamin E Supplemental Level on Reproductive Performance of Laying Duck Breeders and Growth Performance and Antioxidant Performance of Offspring Ducklings

作　　者：王爽 陈伟 黄雪冰 黄路生 夏伟光 李凯潮 王胜林 郑春田 张亚男 WANG Shuang;CHEN Wei;HUANG Xuebing;HUANG Lusheng;XIA Weiguang;LI Kaichao;WANG Shenglin;ZHENG Chuntian;ZHANG Yanan(Guangdong Key Laboratory of Animal Breeding and Nutrition,Ministry of Agriculture Guangdong Public Laboratory of Animal Breeding and Nutrition Guangdong,Key Laboratory of Poultry Genetics and Breeding of Ministry of Agriculture,Key Laboratory of Animal Nutrition and Feed Science in South China,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,农业部家禽遗传育种重点实验室,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12期7781-7789,共9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);国家重点研发计划(2018YFE0128200,2021YFD1300405);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添加水平对蛋种鸭繁殖性能及子代雏鸭生长性能、抗氧化性能的影响,为维生素E在蛋种鸭饲粮中的合理应用提供参考依据。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组,每组6个重复,每个重复14只。各组蛋种鸭饲粮维生素E添加水平分别为0、12.5、25.0、50.0、100.0和200.0 mg/kg。子代雏鸭饲喂相同的基础饲粮,维生素E添加水平为20.0 mg/kg。蛋种鸭饲养期24周,子代雏鸭饲养期4周。结果表明:1)随着饲粮维生素E添加水平的增加,蛋种鸭血浆和肝脏α-生育酚含量呈现线性和二次曲线变化(P<0.05)。2)饲粮维生素E添加水平对蛋种鸭种蛋受精率、孵化率及健雏率无显著影响(P>0.05),但显著影响输卵管重量和优势卵泡重量(P<0.05)。饲粮维生素E添加水平为12.5 mg/kg时,输卵管重量和优势卵泡重量最高。饲粮维生素E添加水平对子代雏鸭的平均日增重、料重比和28日龄体重均无显著影响(P>0.05)。3)饲粮维生素E添加水平显著影响子代雏鸭血浆和肝脏丙二醛(MDA)含量以及血浆谷胱甘肽过氧化物酶(GSH-Px)活性(P<0.05),饲粮维生素E添加水平显著影响子代雏鸭肝脏谷胱甘肽过氧化物酶-1(GPX-1)mRNA相对表达量(P<0.05)。由此可见,饲粮中添加12.5 mg/kg维生素E可促进蛋种鸭卵巢发育,更高的维生素E添加水平对繁殖性能没有显著的改善作用。饲粮添加维生素E对子代雏鸭生长性能无显著影响,但可降低子代雏鸭血浆和肝脏脂质过氧化程度,提高子代雏鸭机体抗应激水平。This experiment was conducted to study the effects of dietary vitamin E supplemental level on reproductive performance of laying duck breeders and growth performance and antioxidant performance of offspring ducklings,to provide a reference for the rational application of vitamin E on laying ducks breeders.A total of 504 healthy 120-day-old Fujian Longyan ducks with similar body weight were randomly assigned to 6 groups with 6 replicates in each group and 14 birds in each replicate.The dietary vitamin E supplemental levels of laying duck breeders in each group were 0,12.5,25.0,50.0,100.0 and 200.0 mg/kg,respectively.The offspring ducklings were fed the same basal diet,and the dietary vitamin E supplemental level was 20.0 mg/kg.The feeding period of laying duck breeders was 24 weeks,and the feeding period of offspring ducklings was 4 weeks.The results showed as follows:1)with dietary vitamin E supplemental level increased,the content ofα-tocopherol in plasma and liver of laying duck breeders showed linear and quadratic curve changes(P<0.05).2)Dietary vitamin E supplemental level had no significant effects on the breeding eggs fertilization rate,hatching rate and healthy duckling rate of laying duck breeders(P>0.05),but significantly affected the fallopian tube weight and dominant follicle weight(P<0.05).When the dietary vitamin E supplemental level was 12.5 mg/kg,the fallopian tube weight and dominant follicle weight were the highest.Dietary vitamin E supplemental level had no significant effects on the average daily gain,feed to gain ratio and body weight at 28 days of age of offspring ducklings(P>0.05).3)Dietary vitamin E supplemental level had no significant effects on the content of malondialdehyde(MDA)in plasma and liver and plasma glutathione peroxidase(GSH-Px)activity of offspring ducklings(P<0.05),and dietary vitamin E supplemental level had no significant effects on the liver glutathione peroxidase-1(GPX-1)mRNA relative expression level of offspring ducklings(P<0.05).In conclusion,dietary supplemented wit

关 键 词：维生素E 生长性能 繁殖性能 抗氧化性能 

分 类 号：S834[农业科学—畜牧学]