动物营养学报2018，Vol.30Issue(6)：2164-2171,8.DOI:10.3969/j.issn.1006-267x.2018.06.019
饲粮中添加酵母β-葡聚糖对围产期奶牛生产性能、血清生化指标及抗氧化能力的影响
Effects of Dietary Supplementation of Yeast β-Glucan on Performance, Serum Biochemical Indices and Antioxidant Capacity of Transition Dairy Cows
摘要
Abstract
The objective of this study was to evaluate the effects of dietary supplementation of yeast β-glucan on performance, serum biochemical indices and antioxidant capacity of transition dairy cows. Forty Holstein cows with similar body condition score (3.63±0.06), parity (2.88±0.05), milk yield of the last parity [(36.86±1.06) kg/d] and expected parturition date [(28±1) d] were assigned to 2 groups with 20 cows per group in a completely randomized design. Cows in control group were fed a basal diet, and those in experimen-tal group were fed the basal diet supplemented with 10 g/( head·d) yeastβ-glucan. The experiment lasted for 49 days with a pretrial period of 7 days and a trial period of 42 days. The results showed as follows:1) dietary supplementation of yeast β-glucan significantly improved postpartum dry matter intake, milk yield and milk protein yield ( P<0.05) , but had no significant effects on yield and percentage of the other milk composition ( P>0. 05 ); 2 ) dietary supplementation of yeast β-glucan significantly improved postpartum serum glucose ( GLU) content ( P<0.05) , significantly decreased postpartum serum nonesterified fatty acid ( NEFA) content was significantly decreased (P<0.05), and tended to increase postpartum serum total protein content (P=0.06) , but had no significant effects on prepartum and postpartum serum contents of albumin ( ALB) , hapto-globin (Hp), C-reactive protein (CRP) and amyloid A (AA) (P>0.05); 3) dietary supplementation of yeast β-glucan significantly improved prepartum and postpartum serum glutathione peroxidase activity ( P<0.05), and tended to decrease prepartum serum malondialdehyde content (P=0.05), but had no significant effects on serum total antioxidant capacity and superoxide dismutase activity ( P>0.05) . These results indicate that dietary supplementation of yeastβ-glucan can improve postpartum dry matter intake, milk yield, milk pro-tein yield, increase postpartum serum GLU content and antioxidant capacity, decrease postpartum serum NEFA content.关键词
酵母β-葡聚糖/围产期奶牛/生产性能/生化指标/抗氧化能力Key words
yeast β-glucan/transition dairy cow/performance/biochemical index/antioxidant performance分类
农业科技引用本文复制引用
顾鲲涛,赵连生,王留香,卜登攀,刘宁,王建平..饲粮中添加酵母β-葡聚糖对围产期奶牛生产性能、血清生化指标及抗氧化能力的影响[J].动物营养学报,2018,30(6):2164-2171,8.基金项目
中国农业科学院科技创新工程协同创新任务(ASTIP-IAS07,CAAS-XTCX2016011-01) （ASTIP-IAS07,CAAS-XTCX2016011-01）
北京市奶牛产业创新团队(BAIC06-2017) （BAIC06-2017）
