Stress protective agent as well as preparation method and application thereof

The invention provides a stress protective agent and belongs to the technical field of aquaculture, resveratrol, beta-nicotinamide mononucleotide and other components are compounded for use, and the stress protective agent which is higher in targeting property, shorter in action time and capable of strengthening the repair capacity of damaged mitochondria while resisting oxidation is prepared. The stress protective agent can improve the stress resistance and disease resistance of fishes, and has the effects of enhancing the physique of the fishes and reducing the death rate. The invention also provides a preparation method and application of the stress protective agent, the use method in application can overcome the defect of single use method of the traditional stress protective agent, and the use method has the advantages of no toxicity, no harm and environmental protection. 本发明提供了一种应激保护剂，属于水产养殖技术领域，本发明通过将白藜芦醇、β-烟酰胺单核苷酸等成分复合使用，制得了一种靶向性更强，作用时间更短，且在抗氧化的同时能够强化受损线粒体的修复能力的应激保护剂。本发明的应激保护剂能够提高鱼类的抗逆及抗病能力，具有增强鱼类体质，减