黄芪和当归对泌乳牦牛血液生理生化指标和乳品质的影响  

Effect of Supplementing Astragalus and Angelica on Serum Physiological and Biochemical Indexes and Milk Quality of Lactating Yak

作　　者：姜翠霞 胡长胜 魏海燕 王宪举 唐一国 丁路明[1,2] JIANG Cuixia;HU Changsheng;WEI Haiyan;WANG Xianju;TANG Yiguo;DING Luming(State Key Laboratory of Grassland Agro-ecosystems,College of Ecology,Lanzhou University,Lanzhou,Gansu 730000,China;Qinghai Provincial Key Laboratory of Adaptive Management of Alpine Grassland,Qinghai University,Xining,Qinghai 810016,China;Sichuan Kangbaqing Agro-Pastoral Technology Group Co.Ltd.,Chengdu,Sichuan 610213)

机构地区：[1]兰州大学草地农业生态系统国家重点实验室/兰州大学生态学院,甘肃兰州730000 [2]青海大学青海省高寒草地适应性管理重点实验室,青海西宁810016 [3]四川康巴情生态农牧科技集团有限公司,四川成都610213

出　　处：《家畜生态学报》2022年第6期39-47,共9页Journal of Domestic Animal Ecology

基　　金：国家重点研发计划(2018YFD0502302);高寒草地-家畜系统适应性管理技术平台(2020-ZL-T07);青海省重点研发与转化计划项目(2018-SF-145,2017-NK-114);青海省重大科技专项(2018-NK-A2);青海省重点实验室专项(2013-Z-Y03);国家肉牛牦牛产业体系项目(CARS-37)。

摘　　要：该试验旨在研究饲喂中药黄芪(Astragalus)和当归(Angelica)配伍对泌乳牦牛血清生化、抗氧化和免疫指标以及乳品质的影响。选取体重、年龄、产犊时间基本一致的泌乳期健康牦牛24头,随机分为2组(每组12头),对照组不添加黄芪当归粉,中药组添加黄芪粉和当归粉(2.5:1),按照牦牛日干物质采食量(DMI)的0.07倍添加,DMI以5 kg/d计算,试验正试期68 d。结果表明:中药组牦牛血清中肌酐(CREA)、丙二醛(MDA)含量显著低于对照组(P<0.05),而免疫球蛋白A(IgA)、免疫球蛋白G(IgG)、免疫球蛋白M(IgM)、白介素-2(IL-2)、谷胱甘肽过氧化物酶(GSH-Px)、总超氧化物歧化酶(T-SOD)和生长激素(GH)水平显著高于对照组(P<0.05);中药组牦牛乳中脂肪、蛋白、乳糖、尿素氮、乳铁蛋白含量均显著高于对照组(P<0.05),而体细胞数显著低于对照组(P<0.05)。研究结果揭示,泌乳牦牛日粮中添加中药黄芪和当归可以显著提高牦牛的营养代谢水平、免疫力和抗氧化能力,并能够改善乳品质。The current experiment was to study the effect of supplementing Astragalus and Angelica on the biochemical,antioxidant,immune indexes and milk quality of lactating yaks.Twenty-four healthy lactating yaks with the same weight,age and calving time were randomly divided into two groups(12 of each).The control group was added nothing.The treatment groups were supplemented with Astragalus and Angelica(2.5:1)in a 68-day's trial,which is 7%of daily dry matter intake(DMI,5 kg/d).The results showed that the serum concentration of creatinine(CREA),malondialdehyde(MDA)were significantly lower in treatment group than control(P<0.05).The content of serum immune globulin(IgA,IgG,IgM),interleukin(IL-2),glutathione peroxidase(GSH-Px),total superoxide dismutase(T-SOD)and growth hormone(GH)in treatment group were significantly higher than control(P<0.05).The milk fat,protein,lactose,urea nitrogen and lactoferrin were significantly higher in treatment group than control group(P<0.05).However,the somatic cell count was significantly lower in treatment group than control(P<0.05).Generally,the addition of Astragalus and Angelica showed beneficial effect on the immunity,antioxidant capacity and milk quality of lactating yaks.

关 键 词：黄芪 当归 泌乳牦牛 抗氧化能力 免疫力 乳品质 

分 类 号：S823.8[农业科学—畜牧学]