【摘要】 本试验选用180只健康1日龄艾维茵肉仔鸡(公母混养),采用单因子随机设计,将180只试验雏鸡随机分成6组,每组设3个重复,每个重复10只鸡。紫花松果菊提取物的添加浓度分别为0、5、10、50、100、500 mg/kg,研究添加不同水平的松果菊提取物对肉仔鸡生长性能、抗氧化性能的影响。试验结果表明,在玉米-豆粕型肉仔鸡日粮中添加紫花松果菊提取物,添加量为50 mg/kg时,明显提高了生长前期肉仔鸡血清中SOD、GSH-Px的活性,同时降低了血清MDA的含量(P>0.05);而添加紫花松果菊提取物对生长性能有一定的改善作用,但效果不显著。更多还原

【Abstract】 One hundred and eighty avin broilers were divided into 6 groups with one-way random design,each group including 3 replicates(10 briolers per replicate).The first group was the control group,fed with corn-soybean and the Second to 6-th groups were experimental groups,fed with basal diet supplement with 5,10,50,100,500 mg/kg Echinacea respectively.The whole experimental period was 7 weeks.The objective was to study the effects of different concentration Echinacea on antioxidant function and production performance.The experimental results showed that: The Echinacea abstract with 50 mg/kg had the highest free radical scavenging effects on hydroxyl free radicals,and the activities of SOD,GSH-Px were enhanced,the content of MDA in blood serum of the broilers was decreased.But there is not significantly different in the production performance,just a certain improvement.更多还原