The prospect of Pelteobagrus fulvidraco interculture is good.

Pelteobagrus fulvidraco, also known as Pelteobagrus fulvidraco, etc., is an important economic fish in freshwater culture in China. Pelteobagrus fulvidraco has delicate meat, rich nutrition and delicious taste, and the market demand continues to grow rapidly in recent years. As the production of natural waters and pond culture is very limited, it is difficult to meet the growing market demand, resulting in Pelteobagrus fulvidraco to maintain a high market price for a long time. The pond culture of Pelteobagrus fulvidraco has the advantages of low investment and high income, and the prospect of culture is generally optimistic.

Fish pond condition

Pelteobagrus fulvidraco pond should choose good water source conditions without any pollution. The shape of the fish pond is rectangular, with an area of 310 mu and a water depth of 1.5 to 2 meters. The pond should have anti-escape facilities, and the entrance and exit should be protected against escape nets. The pH value of pool water is between 7 and 8.5, and the dissolved oxygen is kept above 4 mg / L. The pond is rich in natural bait resources, such as plankton, water, fish and shrimp, aquatic insects and so on.

Entrapment density

Pelteobagrus fulvidraco can be cultured in other fish ponds, adult ponds, parent ponds and river crab ponds, and there should be abundant small wild fish and shrimp in the ponds as feed for Pelteobagrus fulvidraco. From late April to early May, 4500-9000 Pelteobagrus fulvidraco fingerlings of 3 grams per hectare were reared. It is not suitable to cultivate other ferocious fish in ponds to avoid predation of Pelteobagrus fulvidraco fingerness. the interculture of 750 fish of 1520 grams per hectare can increase the yield of Pelteobagrus fulvidraco by 75 kilograms per hectare. In addition, the captive culture of Pelteobagrus fulvidraco can significantly reduce the incidence of anchor head disease in other fish and reduce the dosage. The ponds of Pelteobagrus fulvidraco should take silver carp, bighead carp, carp and grass carp as the main culture objects, but not carp or crucian carp as mixed culture objects, because their eating habits are basically the same, it is easy to have adverse effects, let alone co-culture with ferocious carnivorous fish such as catfish.

Set-up management

Pond breeding and management of Pelteobagrus fulvidraco in addition to doing a good job in the routine management of the pond, special attention should be paid to water quality management, always keeping dissolved oxygen above 4 mg / L, and adding water frequently, especially in the high temperature season from July to September, water is generally added every 2 to 3 days, with a depth of not less than 15 cm each time, and the aerator is operated for 2 hours a day to ensure sufficient dissolved oxygen. Prevent fish from floating their heads. If the rotation catch and release technology can be implemented and the appropriate fish carrying capacity in the pond can be maintained all the time, the culture effect will be better.

When capturing Pelteobagrus fulvidraco in ponds, we should be careful not to affect the normal growth of Pelteobagrus fulvidraco in disease control. As Pelteobagrus fulvidraco is scaleless fish, drugs are easily immersed into the body directly from the skin, so when using drugs, the dosage must be strictly controlled to prevent death from acute and chronic poisoning. Pelteobagrus fulvidraco is sensitive to malachite green, copper sulfate, mercurous nitrate, potassium permanganate and trichlorfon. In addition, in the ponds of Pelteobagrus fulvidraco, it is best not to fish when the Pelteobagrus fulvidraco has not grown to about 100 grams of commodity specifications, because Pelteobagrus fulvidraco is easier to bite.

Related links

Kong Lingjie, a senior engineer at Heilongjiang Aquatic Technology Popularization Station, made the following suggestions to the broad masses of farmers:

First, keep the water body with high dissolved oxygen. Pelteobagrus fulvidraco has higher requirements for dissolved oxygen in pond water, so mixed culture requires fresh water, sufficient dissolved oxygen, timely injection of new water in growing season, and frequent change of water in high temperature season, such as keeping micro-running water.

Second, keep reasonable stocking density and stocking specifications. According to the bait biomass of the water body, the proportion of mixed culture and stocking specifications should be determined scientifically and rationally. If the density is too high and the specification is too small, it will not be able to meet the market specifications at the end of the year.

Third, after mixed culture of Pelteobagrus fulvidraco in fish ponds, it is no longer suitable for mixed culture of other carnivorous fishes, and it is not suitable for mixed culture of Pelteobagrus fulvidraco in the culture ponds of freshwater prawns and crayfish.

Fourth, if the size of Pelteobagrus fulvidraco is found to be too small in the process of culture, it means that the biomass of natural bait in the fish pond is insufficient, and we can properly replenish small fish and shrimp, summer flowers of domestic fish or feed the specially prepared Pelteobagrus fulvidraco. Pelteobagrus fulvidraco has the habit of sleeping during the day and going out at night, so the bait should be mainly at night.

Fifth, Pelteobagrus fulvidraco can also be cultured in crab ponds. Because the river crab and Pelteobagrus fulvidraco are ecologically in the same water layer, it is easy to cause the competition of their ecological position. Therefore, sufficient natural food organisms must be maintained in the crab pond, otherwise the feeding effect of Pelteobagrus fulvidraco will be affected.