1, water temperature requirements

Chinese sturgeon on the growth of water temperature adaptability, general artificial culture of Chinese sturgeon, water temperature control in 0-37 ℃ can be, suitable for their growth of water temperature is 13-25 ℃, the most suitable for their growth and development of water temperature is 20-22 ℃, the appropriate temperature of the parent sturgeon catalytic production of water temperature of 17-24.5 ℃, the most suitable for the incubation of fish eggs in the water temperature of 17-21 ℃. The most suitable water temperature for the eggs to hatch is 17-21℃.

After entering the winter, when the water temperature drops to 9-6 ℃, the Chinese sturgeon will eat less, stop growing, and even lose weight, before and after the spring when the water temperature rises back to about 10-13 ℃, they will begin to eat a small amount of food, but the growth rate is slower, after the Ching Ming when the water temperature rises back to more than 15 ℃, they begin to feed normally, and growth accelerated when the water temperature of 33-38 ℃, it will affect their development of the sturgeon. 38℃, it will affect their normal growth.

2, oxygen requirements

Chinese sturgeon for the water oxygen requirements are relatively high, but the oxygen content of the water changes in the fertilized water can not be cultured sturgeon and juvenile, the general culture of Chinese sturgeon in the water oxygen content should be controlled in the 5 mg / l or more, if the oxygen content of the water is lower than 4 mg / l, they will reduce the feeding, when the oxygen content of the water is low to 3 mg / l or When the oxygen content in the water is as low as 3mg/l or below, their feeding will be reduced rapidly and they will stop eating, which may lead to retarded activity, coma and death in serious cases.

3, pH requirements

PH value of 7-8 alkaline water is the most suitable for the growth of Chinese sturgeon, if the pH in the water, carbon dioxide increases, acidic enhancement will lead to a reduction in the oxygen content of the water, is not conducive to the growth of Chinese sturgeon, if the acidity is too high, the ammonia and nitrogen in the water will be strengthened, the Chinese sturgeon growth and development.

4, salinity requirements

Chinese sturgeon for the salinity of the adaptability of the general growth of natural conditions of the Chinese sturgeon is in the brackish and freshwater waters to and from the growth of their freshwater reproduction, and then go to the sea water to grow.

5, light intensity

When the Chinese sturgeon in the vertical swimming stage, the fry are more afraid of sunlight, but to the benthic stage, their phototropism will disappear, generally speaking, the intensity of light will not have an impact on the cultivation of young and juvenile sturgeon, but in the high temperature of summer to avoid direct sunlight caused by the rise in water temperature on the growth of sturgeon have an impact on the aquaculture ponds on the top to be Place a good sunshade equipment.

Chinese sturgeon for the oxygen content of the water requirements are relatively high, but the oxygen content of the water varies greatly in the fertilization of the water can not breed Chinese sturgeon and juvenile, the general culture of Chinese sturgeon in the water should be controlled in the oxygen content of more than 5 mg / l, if the oxygen content of the water is lower than 4 mg / l, they will reduce the feeding, when the oxygen content of the water is as low as 3 mg / l or below, their feeding will be rapidly. When the oxygen level in the water drops to 3mg/l or below, their feeding will decrease rapidly and they will stop eating, which may lead to retarded activity, coma and death in severe cases.

Precautions:

Clean and disinfect the pond, 15 days before the release of seedlings, the pond's water into the 20cm or so, with quicklime into the water and then sprinkle it all over the pond, a comprehensive disinfection of the pond, to eliminate toxic substances in the water. Then the pond will be soaked for about three days to drain the pond water out, and then the water amount of the bottom of the pond soaked, in the inlet and outlet of the water with the eye sieve silk on its filtration.

To frequently observe the growth of sturgeon in the pond, at least three times a day, morning, noon and night, pay special attention to the night and early morning inspections, pay attention to the activities of individual fish, to prevent them from hypoxia.