几种植物提取物对异育银鲫生长性能和血液生化指标的影响

用分别在基础日粮中添加了黄霉素(4 mg/kg)和3种植物提取物(皂树皂甙150 mg/kg、茶多酚50 mg/kg、水飞蓟素100 mg/kg)的饲料饲喂异育银鲫(Carassius auratus gibelio)56 d后,测定各组鱼生长性能,并于实验结束时尾静脉采血,测定血液生化指标。结果表明:与对照组和黄霉素组相比,3种植物提取物组间的增重率(WGR)和蛋白质效率(PER)无显著性差异(P>0.05);其中皂树皂甙能显著提高血清白蛋白(ALB)的含量(P<0.05);茶多酚能显著提高血清碱性磷酸酶(AKP)的含量(P<0.05),降低血清尿素氮(BUN)含量(P<0.05);水飞蓟素能显著提高血清碱性磷酸酶的含量(P<0.05),降低血清丙二醛(MDA)的含量(P<0.05)。

Effects of Several Plant Extracts on Growth Performance and Blood Biochemical Indices in Carassius auratus gibelio

The growth performance and blood biochemical indices in Carassius auratus gibelio were determined while feeding with basal diet supplemented with flavomycin(4 mg/kg),quillaja saponin(150 mg/kg),tea polyphenol(50 mg/kg),silymarin(100 mg/kg)respectively.Growth performance was measured,and the blood biochemical indices of each group were analyzed with the blood sample collected from caudal vein after 56 d.The results showed that the test groups were not significant different from control group in weight gain rate and protein efficiency ratio(P>0.05).Quillaja saponins significantly increased albumin(ALB)content in plasma(P<0.05).Tea polyphenols significantly increased alkaline phosphatase(AKP)activity in plasma(P<0.05),significantly decreased blood urea nitrogen(BUN)content in plasma(P<0.05).Silymarin significantly improved AKP activity in plasma(P<0.05),and significantly decreased maleic dialdehyde(MDA)content in plasma(P<0.05).