文献类型：期刊文献

中文题名：黄芪多糖对吉富罗非鱼生长和免疫功能的影响

英文题名：Effect of Astragalus polysaccharide on growth and immunity function of Oreochromis niloticus

作者：杨政高[1,2,3];蔡佳[1,2,3];黄瑜[1,2,3];简纪常[1,2,3];汤菊芬[1,2,3]

机构：[1]广东海洋大学水产学院,广东湛江524088;[2]广东省水产动物病害防控与健康养殖重点实验室,广东湛江524088;[3]广东省水产经济动物病害控制重点实验室,广东湛江524088

年份：2023

卷号：46

期号：1

起止页码：66

中文期刊名：饲料研究

外文期刊名：Feed Research

收录：CSTPCD、、北大核心、北大核心2020

基金：国家自然科学基金“联合基金项目(项目编号:U20A2065)”。

语种：中文

中文关键词：黄芪多糖;吉富罗非鱼;生长性能;免疫功能

外文关键词：Astragalus polysaccharides;Oreochromis niloticu;growth perfomance;immune function

中文摘要：试验旨在研究黄芪多糖(APS)对吉富罗非鱼生长性能和免疫功能的影响。选取外观正常、体质健壮、平均体重(19.32±0.23) g的吉富罗非鱼450尾,随机分为5组,每组3个重复,每个重复30尾鱼。对照组鱼投喂基础饵料,试验组在基础饵料中添加0.05%(0.05%组)、0.10%(0.10%组)、0.15%(0.15%组)和0.20%(0.20%组) APS。试验期28 d。结果显示,与对照组相比,0.10%组、0.15%组吉富罗非鱼的增重率显著提高(P<0.05),饵料系数显著降低(P<0.05)。试验第7 d,试验组吉富罗非鱼血清中的溶菌酶(LSZ)、超氧化物歧化酶(SOD)和碱性磷酸酶(ALP)活性均显著高于对照组(P<0.05)。使用无乳链球菌攻毒10 d后,0.20%组罗非鱼的免疫护率最高(61.25%),0.15%组次之(56.41%)。研究表明,从生长性能、免疫指标和经济角度综合考虑,吉富罗非鱼生产中建议添加0.15%的APS。

外文摘要：The experiment was to study the effect of Astragalus polysaccharide on growth performance and immune function of Oreochromis niloticus. A total of 450 Oreochromis niloticus with normal appearance, healthy body weight and average body weight of(19.32±0.23) g were randomly divided into five groups, with three replicates in each group and 30 fish in each replicate. The fish in control group was fed basic diet. In experimental groups, 0.05%(group 0.05%),0.10%(group 0.10%), 0.15%(group 0.15%) and 0.20%(group 0.20%) APS were added to basal diet. The experiment lasted for 28 d. The results showed that compared with control group, the weight gain rate of Oreochromis niloticus in 0.10% group and 0.15% group was significantly increased(P<0.05), and the feed coefficient was significantly decreased(P<0.05). On the 7th day of experiment, the activity of LSZ, SOD and AKP in serum of tilapia in experimental groups were significantly higher than those in control group(P<0.05). After 10 d of Streptococcus agalactiae challenge, the immune protection rate of Oreochromis niloticus in group 0.20% was the highest(61.25%), followed by group 0.15%(56.41%). According to the study, it is recommended to add 0.15% APS to the production of Oreochromis niloticus from the perspective of growth performance, immune indexes and economy.