Sturgeon culture density

The best stocking density of Sturgeon is 2~4kg/ Sturgeon, and the best stocking density of Russian Sturgeon can reach 4~5kg/ Sturgeon, and the growth rate of Russian Sturgeon is the fastest among Sturgeon, and the stocking density should be adjusted accordingly according to the growth of fish body. At present, cage culture of Sturgeon is the most worthy of promotion.

Density and specification of Sturgeon stocking

The stocking density of Sturgeon can be 50 per square meter. at the beginning of stocking, a total of 5000 Sturgeon were released with 3 cages, and the stocking density was evenly distributed. when the Sturgeon was released for a period of time, the Sturgeon was evacuated according to its size to reduce the stocking density.

Suitable stocking density of Sturgeon

The experiment of cage culture of Sturgeon shows that in order to reach the specification of commercial fish above 1kg, the stocking density should not be too high. When the stocking density is about 5kg/m2, the body weight of fish can reach more than 1kg.

The bone plate of Sturgeon is hard, and when the stocking density is too high, the fish will be injured by friction and collision, and the fish will be infected and die. Therefore, the best stocking density of Sturgeon in cage is 2.0-4.0 kg/m2, and that of Russian Sturgeon can reach 4-5 kg/m2.

Selection of breeding species of Sturgeon

In terms of production practice, the breed of Sturgeon cultured in cage is very important. under the same culture conditions, the growth rate of Russian Sturgeon is faster than that of Sturgeon, and the growth rate of Russian Sturgeon is faster than that of hybrid Sturgeon.

At present, the ecological conditions of the reservoir are suitable for the requirements of Sturgeon culture. Sturgeon is a kind of cold fish. If the water temperature is more than 25 ℃, there will be a problem of spending the summer. However, the growth rate of Sturgeon in cage culture is very fast when the water temperature at the bottom of the reservoir is low in summer. At present, cage culture of Sturgeon is a culture model worth popularizing.

The feeding of Sturgeon

The main feed for cage cultured Sturgeon is full-price grain feed, and the feeding amount depends on the feeding situation of the fish. The quantity and times of feeding are adjusted according to the water temperature and the growth of the fish body. The feeding amount is 2.3%-3.4% of the fish body weight at 17-20 ℃, and 4.5%-3.5% of the body weight when the water temperature is 21-25 ℃. The average daily bait times are about 3 times.

Daily management of Sturgeon

Check the feeding condition of Sturgeon every day, check whether the cage is damaged, wash the dirt on the cage regularly, keep the pond fresh, flow smoothly, and adjust the stocking density according to the growth of the fish.

Disease control of Sturgeon

Sturgeon has a strong defense ability and is generally less ill during culture. If bacterial enteritis is found, it can be cured after feeding with 0.2% bait containing dysentery for about 5 days.