Sturgeon culture conditions Sturgeon culture techniques

Sturgeon is the oldest fish in the world, and it is also the largest existing fish in the world. For this more valuable fish species, many people have only heard of it, but not many people have really seen it. However, with the development of the value of Sturgeon, the market demand is increasing, and many people begin to breed Sturgeon artificially. Next we will introduce some conditions and techniques for breeding Sturgeon.

Culture conditions of Sturgeon

I. Pond conditions

The size of the pond is 4 mu, the bottom of the pond is sandy, each pond is equipped with an independent inlet and outlet and a fixed feeding point, the bottom of the feeding point is cement concrete bottom, and smooth, with an area of 6-8 square meters, with a shading net above. The water source is self-flowing mountain stream water, the annual water temperature is 18-24 ℃, and the water quantity is abundant, the water quality is fresh and pollution-free. There is an independent water supply, which can replenish new water from time to time and can be fully drained.

Second, stocking conditions

Clean the pond thoroughly before stocking, install the block, and disinfect it with 30-50 mg / m 3 homemade acid bait solution. After disinfection, clean the pond and release water to release seedlings. Choose harmless, robust and lively seedlings with neat specifications for stocking, with a body length of 10-15 cm and 600-1000 seedlings per mu.

III. Feed conditions

Feed on the third day after feeding, feeding Loach shrimp and chicken. Loach too big to cut to change the knife, to mouth size can be easily inhaled into the size of the main.

Culture techniques of Sturgeon

The main results are as follows: 1. The amount and method of feeding vary according to the weather. The amount of feeding should be 5% of the fish's body weight and 7% of the fish's body weight in the early stage, and 4% of the fish's body weight and 5% of the fish's body weight in the later stage. Bait 2-4 times a day. During each feeding, the bait was scattered evenly in the pool at a fixed time and quantity.

2. Water quality management requires fresh water quality, which is discharged once a day, and the transparency is maintained at about 30 cm. The pond was cleared every 7 days in the seedling stage and once every 15 days in the adult stage to keep the pond clean and the water flowing smoothly. The water level is kept at 0.3-0.4 cm in the seedling stage and 0.4-0.6 cm in the adult stage. The stage of water level exchange is 3-4 times per hour for seedling and 2-3 times per hour for adult fish. During the culture period, the dissolved oxygen is 6.68-10.48 mg / L, the pH value is 7.78-8.56 and the average temperature is 10.1-22.3 °C.

3. Daily management observe fish activity and feeding situation at any time, remove residual bait in time, and record weather, water temperature, feeding, disease prevention and fish growth spot check every day.

Control of common diseases of Sturgeon

Sturgeon rotifer

Disease and etiology: the pathogen is rotifer. Due to excessive parasitism of pathogens on fish bodies and Gill rakes, fish are weak, slow to swim, do not feed, grow slowly, and die in large numbers in severe cases.

Prevention and treatment methods: soak in 5% salt water for about 1 hour, and then raise it with running water. In addition, it can also be soaked in formalin solution with a concentration of 15%, 25%, but not copper sulfate.

Sturgeon swollen mouth disease

Symptoms and etiology: the disease occurs more frequently in the larval stage of Amur Sturgeon. It is caused by bacteria, mainly because of feeding spoiled bait. The symptoms are swollen mouth, hyperemia around, red and swollen excretory holes, inactivity, and sometimes accompanied by water mildew.

Prevention and treatment methods: timely catch diseased fish, remove residual bait, change new water, and disinfect the feed table regularly to ensure the quality of feed.

Oblique tube disease of Sturgeon

Disease and etiology: the pathogen is oblique tube worm. When a large number of pathogens are parasitic in the fish body, mouth and Gill, it will cause restlessness of diseased fish, blue-gray film on the body surface, and increased melanin in the mouth and eyes.

Prevention and treatment: at present, there is no effective treatment, the main measure is to transfer the diseased fish to the running pool, and the mortality rate can be reduced to less than 4%.

How big can Sturgeon grow?

Sturgeon is a large and medium-sized economic fish, the growth rate is relatively fast, usually hatched after about a month of culture can reach 7-10 cm. Under suitable conditions, it can reach about 0.75-1 kg after 9-10 months. Large Sturgeon can weigh dozens or even hundreds of jin.

On the Sturgeon culture methods first introduced here, I hope to help you. Sturgeon culture has great market prospects, and Sturgeon has many advantages, such as wide adaptability, fast growth rate and short culture cycle.