摘要:
为研究饲料中添加不同比例的丁酸钠对美洲鳗鲡摄食、生长性能及抗氧化能力的影响,试验设计3组,对照组、试验组Ⅰ、试验组Ⅱ的饲料中分别添加0、0.5和1.0的丁酸钠,每组设2个平行,分别饲养于6个1m3室内循环水箱中,每口池放养100尾鳗鱼,试验时间为42d。记录每天的摄食量,试验结束时进行称重,并进行肝脏抗氧化能力的测定。结果表明:在增重率和降低饲料系数方面,试验组均优于对照组,相对于对照组,试验组Ⅱ的增重率提高了37%,饲料系数降低了26%;在摄食率和成活率方面,3组没有明显差异;在抗氧化能力方面,试验组Ⅱ的肝脏总抗氧化能力和过氧化氢酶活力较对照组分别提高了25%和15%,丙二醛含量较对照组低15%,而试验组Ⅰ效果不明显。
Abstract:
The experiment was conducted to determine the effect of dietary sodium butyrate on the feeding,growth performance,and Antioxidant capacity of Anguilla rostrata.There were three groups.The diet of Control group,experimental group I,experimental group II contained 0,0.5 and 1.0 of sodium butyrate,respectively.Each experimental group was divided into 2 parallel groups and stocked in indoor tanks(100 Anguilla rostrata /1m3).The experiment lasted 42 days.Daily food intake was recorded during the experiment.Fish weight and liver antioxidant capacity were determined at the end of the experiment.The results showed that,in the weight gain and reducing feed conversion ratio,both of the experimental groups were better than the control groups.Compared with the control group,weight gain of experimental group Ⅱ increased by 37% and feed conversion ratio of experimental group Ⅱ decreased by 26%.In feeding rate and survival rate,the three groups did not differ significantly.Compared with the control group,liver total antioxidant capacity and catalase activity of experimental group Ⅱ were increased by 25% and 15%,MDA was decreased by 15%,while the experimental groupⅠhad little difference.
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