摘要
本试验旨在探究蒙草药矿物质舔砖对奶牛血清生化、抗氧化、免疫指标及矿物质含量的影响。选取30头体况良好、体重[(615.0±41.6)kg]和产奶量[(30.56±2.18)kg]相近、2~3胎次的泌乳中期荷斯坦奶牛,随机分为2组,每组15头。对照组补饲普通矿物质舔砖,试验组补饲蒙草药矿物质舔砖,2组舔砖的矿物质含量相同。预试期7 d,正试期42 d。结果表明:1)试验第21天,与对照组相比,试验组奶牛血清尿素氮(UN)和总胆固醇(TC)含量显著提高(P<0.05);试验第42天,与对照组相比,试验组奶牛血清葡萄糖(GLU)、UN和TC含量显著提高(P<0.05),血清白蛋白(ALB)含量显著降低(P<0.05)。2)试验第21天,与对照组相比,试验组奶牛血清总抗氧化能力(T-AOC)及超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性显著提高(P<0.05),血清丙二醛(MDA)含量显著降低(P<0.05);试验第42天,与对照组相比,试验组奶牛血清T-AOC及SOD、CAT、谷胱甘肽过氧化物酶(GSH-Px)活性显著提高(P<0.05),血清MDA含量显著降低(P<0.05)。3)试验第21天,与对照组相比,试验组奶牛血清免疫球蛋白G(IgG)和免疫球蛋白M(IgM)含量显著提高(P<0.05),血清白细胞介素-6(IL-6)含量显著降低(P<0.05);试验第42天,与对照组相比,试验组奶牛血清免疫球蛋白A(IgA)、IgG和IgM含量显著提高(P<0.05),血清IL-6和肿瘤坏死因子-α(TNF-α)含量显著降低(P<0.05)。4)与对照组相比,试验组奶牛血清钙、磷、镁、钠、铜、铁、锌、锰和硒含量均无显著变化(P>0.05)。综上所述,补饲蒙草药矿物质舔砖能够改善奶牛的抗氧化能力和免疫功能,对血清矿物质含量无显著影响。
This experiment aimed to investigate the effects of Mongolian herbal mineral lick block on serum biochemical,antioxidant,immune indices and mineral content of dairy cows.Thirty Holstein dairy cows in mid-lactation with good body condition,similar body weight[(615.0±41.6)kg],milk yield[(30.56±2.18)kg]and parity(2 to 3 parities)were selected and randomly divided into 2 groups,with 15 cows in each group.Cows in the control group were supplemented with ordinary mineral lick block,while others in the test group were supplemented with Mongolian herbal mineral lick block,with both lick blocks containing the same mineral element content.The pre-trial period lasted 7 days,and the formal trial period lasted 42 days.The results showed as follows:1)on day 21,compared with the control group,the serum urea nitrogen(UN)and total cholesterol(TC)contents of dairy cows in the test group were significantly increased(P<0.05);on day 42,compared with the control group,the serum glucose(GLU),UN and TC contents of dairy cows in the test group were significantly increased(P<0.05),while the serum albumin(ALB)content was significantly decreased(P<0.05).2)On day 21,compared with the control group,the serum total antioxidant capacity(T-AOC)and activities of superoxide dismutase(SOD)and catalase(CAT)of dairy cows in the test group were significantly increased(P<0.05),while the serum malondialdehyde(MDA)content was significantly decreased(P<0.05).On day 42,compared with the control group,the serum T-AOC and activities of SOD,CAT and glutathione peroxidase(GSH-Px)of dairy cows in the test group were significantly increased(P<0.05),and the serum MDA content was significantly decreased(P<0.05).3)On day 21,compared with the control group,the serum immunoglobulin G(IgG)and immunoglobulin M(IgM)contents of dairy cows in the test group were significantly increased(P<0.05),while the serum interleukin-6(IL-6)content was significantly decreased(P<0.05).On day 42,compared with the control group,the serum immunoglobulin A(IgA),IgG and IgM contents of dairy cows in the test group were significantly increased(P<0.05),and the serum IL-6 and tumor necrosis factor-α(TNF-α)contents were significantly decreased(P<0.05).4)Compared with the control group,the serum contents of calcium,phosphorus,magnesium,sodium,copper,iron,zinc,manganese and selenium of dairy cows in the test group showed no significant changes(P>0.05).In conclusion,supplementing with Mongolian herbal mineral lick block can improve the antioxidant capacity and immune function of dairy cows without significantly affecting serum mineral contents.
作者
陈乐祥
敖晓芳
张文广
包胡格吉乐图
罗海玲
满达
CHEN Lexiang;AO Xiaofang;ZHANG Wenguang;BAO Hugejiletu;LUO Hailing;MAN Da(College of Animal Science,Inner Mongolia Agricultural University,Hohhot 010018,China;State Key Laboratory of Animal Nutrition and Feeding,College of Animal Science and Technology,China Agricultural University,Beijing 100193,China;Inner Mongolia Autonomous Region Agriculture and Animal Husbandry Technology Extension Center,Hohhot 010013,China)
出处
《动物营养学报》
北大核心
2025年第9期5970-5981,共12页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
内蒙古自治区科技重点项目(2021ZD0009)
内蒙古农业大学高水平成果培育专项项目(XSCX202201,CG202437)。
关键词
蒙草药
矿物质舔砖
奶牛
生化
抗氧化
免疫
Mongolian herb
mineral lick block
dairy cows
biochemical
antioxidant
immune
