茶多酚对围产后期奶牛生产性能、血清生化及抗氧化指标的影响  

Effects of Tea Polyphenols on Performance,Serum Biochemical and Antioxidant Indexes in Dairy Cows During Late Perinatal Period

作　　者：齐云霞[1] 吴涛[1] 胡晓苗[1] 刘伟 朱洪龙 韩荣伟[3] 杨永新 程广龙[1] 赵小伟[1] QI Yunxia;WU Tao;HU Xiaomiao;LIU Wei;ZHU Honglong;HAN Rongwei;YANG Yongxin;CHENG Guanglong;ZHAO Xiaowei(Anhui Key Laboratory of Livestock and Poultry Product Safety Engineering,Institute of Animal Husbandry and Veterinary Medicine,Anhui Academy of Agricultural Sciences,Hefei 230031,China;Animal Disease Prevention and Control Center of Guzhen,Bengbu 233700,China;College of Food Science and Engineering,Qingdao Agricultural University,Qingdao 266109,China)

机构地区：[1]安徽省农业科学院畜牧兽医研究所,畜禽产品安全工程安徽省重点实验室,合肥230031 [2]固镇县动物疫病预防与控制中心,蚌埠233700 [3]青岛农业大学食品科学与工程学院,青岛266109

出　　处：《中国畜牧兽医》2023年第10期4070-4076,共7页China Animal Husbandry & Veterinary Medicine

基　　金：安徽省科技重大专项(201903a06020013);安徽省农业科学院院立科研项目(2022YL007)。

摘　　要：【目的】研究饲粮添加茶多酚对围产后期奶牛生产性能、血清生化及抗氧化指标的影响。【方法】选取36头胎次、预产期相近(产前28 d)的中国荷斯坦奶牛,随机分为3组:对照组、茶多酚1组(TP1)、茶多酚2组(TP2),每组12头。对照组奶牛饲喂基础饲粮,TP1、TP2组分别在基础饲粮中每天添加15和30 g/头茶多酚,预试期7 d,正试期42 d。试验结束后采集奶牛的奶样和血样,测定乳成分和血清生化及抗氧化指标。【结果】与对照组相比,TP1、TP2组乳脂产量显著提高(P<0.05),TP2组乳脂率和总固形物含量显著升高(P<0.05);TP2组血清总抗氧化能力(T-AOC)显著提高,谷胱甘肽过氧化物酶(GSH-Px)、超氧化物歧化酶(SOD)和过氧化氢酶(CAT)活性显著升高(P<0.05)。此外,TP2组乳脂率和总固形物含量、T-AOC和GSH-Px、SOD、CAT活性均显著高于TP1组(P<0.05)。【结论】饲粮添加茶多酚能够提高围产后期奶牛产后乳脂产量、乳脂率和总固形物含量,血清T-AOC及SOD、CAT和GSH-Px活性升高。本试验中,添加30 g/头茶多酚效果最佳。【Objective】The objective of this study was to evaluate the effects of dietary supplementation of tea polyphenols on performance,serum biochemical and antioxidant indexes of dairy cows in late perinatal period.【Method】Thirty-six Chinese Holstein cows with similar parity and expected perinatal period(28 days before delivery)were randomly divided into 3 groups,control group,tea polyphenol group 1(TP1)and tea polyphenol group 2(TP2),with 12 cows in each group.Cows in control group were fed a basal diet,and cows in TP1 and TP2 groups were fed the basal diet supplemented with 15 and 30 g/cow of tea polyphenols per day,respectively.The pre-trial period lasted for 7 days and the experimental period lasted for 42 days.After the experiment,milk and blood samples were collected to determine milk composition and serum biochemical and antioxidant indexes.【Result】Compared with control group,milk fat yield in TP1 and TP2 groups was significantly increased(P<0.05),milk fat percentage and total solid content in TP2 group were significantly increased(P<0.05).The total antioxidant capacity(T-AOC)in TP2 group was significantly increased,and the activities of glutathione peroxidase(GSH-Px),superoxide dismutase(SOD)and catalase(CAT)were significantly increased(P<0.05).In addition,milk fat percentage,total solids content,T-AOC,GSH-Px,SOD and CAT activities in TP2 group were significantly higher than those in TP1 group(P<0.05).【Conclusion】Dietary supplementation of tea polyphenols could increase postpartum milk fat yield,milk fat percentage and total solid content,and increase serum T-AOC,SOD,CAT and GSH-Px activities in late perinatal period.In this experiment,adding 30 g/cow of tea polyphenols had the best effect.

关 键 词：茶多酚 围产后期 生产性能 生化指标 抗氧化指标 

分 类 号：S823.9[农业科学—畜牧学]