During the wintering period, tilapia eats passively, moves very slowly, breathes weakly, and the fish's body temperature drops to basically the same as the water temperature, which will provide survival energy by consuming body fat and protein. Therefore, in the process of overwintering culture, it is necessary to use complete compound feed to improve the fat level of tilapia and provide it with sufficient energy. At the same time, it is necessary to strengthen vitamins, appropriately increase the dosage of vitamin C, vitamin E and organic chromium, and improve the disease resistance and stress resistance of fish. Through the above nutrition strengthening measures, the fish's physique, cold resistance and disease resistance are enhanced, and the overwintering safety factor is improved. The daily feed rate is 0.5% ~ 1%, one day 1 time.

Nutrition that needs to be strengthened during wintering.