中文摘要：

为研究添加丙酸钙对育肥牛生长性能及血液指标的影响,选择18头日本和牛公牛,随机分为2组,每组9头,试验组（EG）日粮中添加丙酸钙200g/d,对照组（CG）正常饲喂,试验期间测定肉牛的生长性能和血液生化指标。结果表明：日粮中添加丙酸钙对肉牛干物质采食量、日增重和饲料转化率差异均不显著（P〉0.05）,但是在试验的第3周和第5周试验组采食量比对照组有增加的趋势（0.05

英文摘要：

In order to provide theortical bases for the utilization of calcium propionate in ruminant production,eighteen Wagyu Bulls were selected to study the effects of Calcium propionate supplementation on growth and blood parameters of finishing beef cattle fed high level nutrition.The experimental animals were randomly divided into two groups,where 9 heads per group.The experimental group（EG） was supplemented with 200 g/d calcium propionate,while the control group（CG） was fed normally.The results showed that：there was no significant difference on dry matter intake,daily gain and feed conversion rate between EG and CG（P0.05）,however,dry matter intake of EG had increasing tendency compared with the CG in third week and fifth week（P0.10）.Although not statistically significant,feed conversion rate of the test group（11.41） is higher than the control group（12.40）.After feeding three hours,the urea nitrogen of EG was significantly higher than CG（P0.05）;EG increased the total protein compared with CG（0.05P0.10）,while the blood glucose and triglyceride in EG decreased（P0.10）.There were no significant differences in the other blood parameters（P0.05）.The experiment results showed that,supplying calcium propionate under high concentration fattening system could not improve animal growth performance.