中国草食动物科学2017，Vol.37Issue(5)：26-31,6.DOI:10.3969/j.issn.2095-3887.2017.05.007
藜麦茎秆对肉牛生产性能、养分表观消化率及血清生化指标的影响
Effects of Quinoa Stem on Performance,Apparent Digestibility and Serum Biochemical Indicators of Beef Cattle
摘要
Abstract
This experiment was conducted to replace whole-plant corn silage with different proportion of quinoa stemfor determining the optimal level of quinoa stem in diets of beef cattle. Thirty two beef cattle of 22-month-old(615.75 kg±33.35 kg) were randomly assigned to 4 groups(n=8). Whole-plant corn silage in total mixed rations of 4 groups were equivalently replaced results showed as follows: there was no significant difference(P>0.05)between all test group and the control group in the production performance including the initial weight,the final weight,DMI,the average daily gain and the feed-weight ratio and so was the apparent digestibilities of CP,ADF,NDF and P,while the DM's apparent digestibility was significantly higher(P<0.01) than that in the control group,the apparent digestibility of Ca in group Ⅱwas significantly lower(P<0.01)than those in the control group and group Ⅰ. For the serum biochemical indicators,the content of ALT in group Ⅲand GLU in group Ⅱand Ⅲwere significantly higher(P<0.01)than those in the control group,the AST content in group Ⅲwere lower(P<0.01)than that in the control group,while the contents of TP and GLOB in group Ⅱwere higher(P<0.05)than that in the control group. The ALP content in group Ⅰwere lower(P<0.05)than that in the control group. The BUN contents in group Ⅱand Ⅲwere significantly lower(P<0.01)than those in the control group and groupⅠ,the GREA content in group Ⅲwere significantly lower(P<0.01)than those in the control group and groupⅠ. There was no significant difference(P>0.05)in the content of ALB,ALB/GLOB,TG, CHOL,HDL,LDL and Ca between all the test group and the control group. As a consequence,there was no adverse effect on the health of the beef cattle with the replacement of 20.00% maize silage in dry matter by quinoa stem in the late fattening period of Simmental crossbred,the dry matter digestibility could be improved.关键词
藜麦茎秆/肉牛/生产性能/表观消化率/血清生化指标Key words
quinoa stem/beef cattle/performance/apparent digestibility/serum biochemical indicator分类
农业科技引用本文复制引用
郝怀志,董俊,何振富,杨发荣..藜麦茎秆对肉牛生产性能、养分表观消化率及血清生化指标的影响[J].中国草食动物科学,2017,37(5):26-31,6.基金项目
甘肃省2016年草牧业试验试点和草业技术创新联盟科技支撑项目(GCLM2016009) （GCLM2016009）
甘肃省农业科学院农业科技创新专项(2013GAAS04-2) （2013GAAS04-2）
