动物氧化应激及其营养调控措施研究进展

动物机体内存在氧化还原平衡，正常状态下保持相对的稳态，当环境或自身状态发生改变时，这种平衡可能会被打破，进而引发机体氧化应激。研究发现，引起氧化应激的因素有很多：如环境因素、动物自身状态改变和外源致病菌以及病毒等，这些因素造成的氧化应激对动物的健康状况、生产性能和繁殖功能等方面会产生不同程度的影响，严重时甚至引发动物死亡，因此，寻求和添加安全有效的抗氧化制剂以调节动物氧化还原状态具有重要的现实意义。目前，针对动物氧化应激的营养性添加剂主要有益生菌、维生素、微量元素、激素类和植物类活性物质等。本文对引发动物氧化应激的主要原因和其对动物产生的影响进行了总结，并概括了具有缓解动物氧化应激功能的营养性饲料添加剂，以期为动物氧化应激和其缓解策略的进一步研究提供参考。

Research Progress of Animal Oxidative Stress and Its Nutritional Regulation

Redox balance exists in animals, which maintains a relatively stable state under normal physiological conditions. This balance will be broken when the environment or the state of animal itself changed, thus leads to the occurrence of oxidative stress. Studies have found that there are many factors can cause oxidative stress, such as changes of environment and physiological conditions, as well as pathogens and viruses infection. Oxidative stresses caused by these factors could affect animal health, production performance and reproductive function in different degrees, and even cause animal death. Therefore, it is of great practical significance to seek and add safe and effective antioxidant agents to regulate the redox state of animals. At present, the main nutritional additives for animal oxidative stress regulation including probiotics, vitamins, microelement, hormones and plant active substances. This review summarized the main causes of oxidative stress in animal and their impact on animals, and also concluded nutritional feed additives with the function of alleviating animal oxidative stress, in order to provide reference for further study of animal oxidative stress and its relieving strategies.