杜仲叶提取物对育成期雌性水貂营养消化率、生长性能、抗氧化能力及免疫力的影响  

Effects of Eucommia ulmoides leaf extract on nutritional digestibility,growth performance,antioxidant capacity,and immunity of female minks in growing stage

作　　者：郭肖兰 陈德武 常忠娟[1] 张婷[1] 王凯英[1] 徐超[1,3] 赵蒙[1] GUO Xiao-lan;CHEN De-wu;CHANG Zhong-juan;ZHANG Ting;WANG Kai-ying;XU Chao;ZHAO Meng

机构地区：[1]中国农业科学院特产研究所,吉林长春130112 [2]吉林省长岭县光明乡综合服务中心,吉林松原131500 [3]吉林农业大学,吉林长春130112

出　　处：《饲料研究》2024年第23期78-82,共5页Feed Research

基　　金：中国农业科学院创新工程(项目编号:CAASASTIP-2021-ISAPS);吉林省特种动物饲养及综合利用创新工程科学仪器开放共享后补助项目(项目编号:20200703038ZP)。

摘　　要：试验旨在探究不同水平的杜仲叶提取物对育成期雌性水貂养分表观消化率、生长性能、抗氧化和免疫功能的影响。试验选取40只体重相近、身体健康的育成期(60±5日龄)雌性短毛黑水貂,随机分为4组,每组10个重复,每个重复1只貂。Ⅰ组(对照组)、Ⅱ组、Ⅲ组、Ⅳ组分别饲喂基础饲粮添加0、3、5、7 g/(只·d)杜仲叶提取物。预试期5 d,正式试验期30 d。结果显示,各组生长性能指标均无显著差异(P>0.05)。Ⅲ组、Ⅳ组粗蛋白、粗脂肪的表观消化率极显著低于对照组(P<0.01)。各试验组谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)活性均显著高于对照组(P<0.05),Ⅱ组和Ⅳ组血清丙二醛(MDA)含量显著低于对照组(P<0.05),各组间血清免疫球蛋白G(IgG)、免疫球蛋白A(IgA)、免疫球蛋白M(IgM)含量差异不显著(P>0.05)。研究表明,饲粮中添加适量的杜仲叶提取物能够改善水貂机体抗氧化能力,结合生产实际,育成期雌性水貂饲粮中杜仲叶提取物适宜添加量为3 g/(只·d)。The experiment aimed to explore the effects of different levels of Eucommia ulmoides leaf extract on the nutrients apparent digestibility,growth performance,antioxidant capacity,and immune function in female minks during the growing period.Forty female short-haired black minks with similar body weights and good health at the age of 60±5 days were selected and randomly divided into four groups,with 10 replicates per group and one mink per replicate.GroupsⅠ(control group),Ⅱ,Ⅲ,andⅣwere fed a basal diet supplemented with 0,3,5,and 7 g/(each·day)of Eucommia ulmoides leaf extract,respectively.The preliminary trial lasted for five days,and the formal trial lasted for 30 days.The results showed that there were no significant differences in growth performance indicators among all groups(P>0.05).The apparent digestibility of crude protein and crude fat in groupsⅢandⅣwas extremely lower than that of the control group(P<0.01).The activities of glutathione peroxidase(GSH-Px)and superoxide dismutase(SOD)in all experimental groups were significantly higher than those in the control group(P<0.05),and the serum malondialdehyde(MDA)content in groupsⅡandⅣwas significantly lower than that in the control group(P<0.05).There were no significant differences in the content of serum immunoglobulin G(IgG),immunoglobulin A(IgA),and immunoglobulin M(IgM)among the groups(P>0.05).The study indicated that the addition of an appropriate amount of Eucommia ulmoides leaf extract to the diet can improve the antioxidant capacity of minks.Considering practical production,the suitable addition level of Eucommia ulmoides leaf extract in the feed for female minks during the growing period is 3 g/(each·day).

关 键 词：水貂 杜仲叶提取物 抗氧化能力 生长性能 养分表观消化率 

分 类 号：S865.2[农业科学—野生动物驯养]