Clarias gariepinus is an important freshwater fish with high economic value and breeding potential in China. It is a fast-growing and adaptable catfish, but the main problems facing the current market are its low price and poor taste, although starvation is a good solution to these problems. In this study, the effects of starvation on the physiology, biochemistry, and muscle quality of C. gariepinus were investigated. The results showed that compared with the control group, the weight gain rate and specific growth rate of the starvation group were significantly different. Body weight, visceral weight, condition factor, viscerosomatic index, hepatosomatic index, and viscera fat index all decreased, while visceral weight and hepatosomatic index decreased significantly after starvation for 30 days. The hardness and crude protein of muscle increased significantly and crude lipid decreased significantly. Taste-enhancing amino acids increased slightly, and fatty acids increased significantly. Compared with the control group, starvation led to changes in antioxidant defense parameters. The level of malondialdehyde (MDA) in liver increased significantly; the activities of superoxide dismutase (SOD) increased in serum after 30 days; the activities of glutathione peroxidase (GSH-Px) increased considerably in the serum and liver after 15 days; the activities of alanine aminotransferase (ALT) increased considerably in the serum and liver after 30 days. The in-depth study of changes in physiological, biochemical, and nutritional components of fish under starvation is helpful to understand the ecological strategy of fish to adapt to starvation and of great guiding significance for fishery resource management and aquaculture production.

鲶鱼是我国重要的淡水鱼类，具有较高的经济价值和养殖潜力。它是一种生长速度快、适应性强的鲶鱼，但目前市场面临的主要问题是价格低、口感差，尽管饥饿是解决这些问题的一个很好的办法。在本研究中，研究了饥饿对C. gariepinus的生理、生物化学和肌肉质量的影响。结果显示，与对照组相比，饥饿组的增重率和特定生长率有显着差异。体重、内脏重量、状况因子、内脏指数、肝体指数、内脏脂肪指数均下降，其中内脏重量和肝体指数在饥饿30天后显着下降。肌肉硬度和粗蛋白显着增加，粗脂肪显着降低。增味氨基酸略有增加，脂肪酸明显增加。与对照组相比，饥饿导致抗氧化防御参数发生变化。肝脏丙二醛（MDA）水平显着升高； 30天后血清中超氧化物歧化酶（SOD）活性升高； 15天后，血清和肝脏中谷胱甘肽过氧化物酶（GSH-Px）的活性显着增加； 30天后，血清和肝脏中丙氨酸氨基转移酶（ALT）的活性显着增加。深入研究饥饿条件下鱼类生理生化和营养成分的变化，有助于了解鱼类适应饥饿的生态策略，对渔业资源管理和养殖生产具有重要指导意义。