经济动物学报2025，Vol.29Issue(4)：305-313,9.DOI:10.13326/j.jea.2025.1810
低聚原花青素对大口黑鲈生长性能、饲料利用及抗氧化能力的影响
Effects of Feed Oligomeric Proanthocyanidins on Growth Performance,Feed Utilization and Antioxidant Capacity of Micropterus salmoides
摘要
Abstract
In an attempt to investigate the impacts of oligomeric proanthocyanidins(OPCs)on the growth performance,feed utilization,and antioxidant capacity of Micropterus salmoides,600 healthy,disease-free Micropterus salmoides specimens,each weighing(8.65±0.05)g,were carefully selected.These fish were then randomly assigned to five distinct groups,with each group comprising three replicates.The control group was fed basal diet,while the experimental groups were provided with the basal diet supplemented with 200,400,600,800 mg/kg of OPCs.The feeding experiment lasted for 56 days.The results demonstrated that in comparison to the control group,supplementing the diet with 400-600 mg/kg of OPCs significantly enhanced the growth performance and feed efficiency of Micropterus salmoides.Additionally,it increased the crude protein content in the muscle(P<0.05).When 400 mg/kg of OPCs was added,the activities of superoxide dismutase(SOD)in both the serum and liver increased significantly(P<0.05).Concurrently,the level of malondialdehyde(MDA)decreased significantly(P<0.05),and the activity of glutathione peroxidase(GSH-Px)in the serum also rose significantly(P<0.05).At an addition level of 600 mg/kg of OPCs,the activities of catalase(CAT)in the serum and liver were notably elevated(P<0.05).Moreover,the activity of GSH-Px in the liver increased significantly(P<0.05).When 400 and 600 mg/kg of OPCs were added,the levels of total antioxidant capacity(T-AOC)in both the serum and liver were significantly higher than those in the control group(P<0.05).At the gene expression level,adding 400 and 600 mg/kg of OPCs significantly upregulated the expressions of SOD,CAT,and Nrf2(P<0.05)while downregulated the expression of Keap1(P<0.05).In conclusion,appropriate supplementation of OPCs in the diet can remarkably improve the growth performance,feed efficiency,and antioxidant capacity of Micropterus salmoides(P<0.05).The optimal addition range is 400-600 mg/kg.关键词
大口黑鲈/低聚原花青素/生长性能/饲料利用/抗氧化能力Key words
Micropterus salmoides/oligomeric proanthocyanidins/growth performance/feed utili-zation/antioxidant capacity分类
农业科技引用本文复制引用
尹壮,孔祎頔,李民,牛小天,王桂芹..低聚原花青素对大口黑鲈生长性能、饲料利用及抗氧化能力的影响[J].经济动物学报,2025,29(4):305-313,9.基金项目
吉林省科技发展计划项目(20200402051NC),现代农业产业技术体系专项(CARS-46) （20200402051NC）
