CATDOLL : CATDOLL: What should we pay attention to when breeding yellow catfish in ponds?

1. What should we pay attention to when cultivating yellow catfish in a pond?

According to the characteristics of the yellow catfish fry at this time, the size of the fish is larger, the feeding habits are basically similar to those of the adult fish, the aggregation is stronger, the food intake is increased, and the adaptability to the ecological environment is stronger, when the water temperature is high during the breeding process, it is necessary to grasp several main technical links according to the characteristics of the yellow catfish in order to obtain high-quality fish species with high survival rate and strong physique.

1. Pond conditions and cleaning The area of ​​the cultivation pond is generally 1 to 2 mu, because a large area can easily cause uneven feeding of fish species and bring difficulties to fishing operations. The pond water depth is about 1.5 meters, the bottom of the pond is flat, and the drainage outlet is about 20% lower than 20 cm. It is ideal, with less silt, better water retention, easy water intake and drainage, quiet surroundings, and a little light shielding. Before releasing the seedlings, the pond must be disinfected and the fry can be released after the zooplankton is cultivated.

2. Stocking of seedlings Stocking of small-sized summer flower fish (also known as fire flake fish) of about 2 cm requires uniform size, strong physique, no injuries or diseases, agile swimming, strong movements, and strict disinfection of the fish body by medicated bath. The stocking density of seedlings is determined according to the production situation and pond conditions. Generally, the stocking density of fish is higher when the fish are raised to the fish pond before or after wintering, and the stocking capacity per mu is 8,000 to 10,000. If the short-term rearing is from July to August, the stocking capacity per mu of commercial fish raised in separate ponds is 4,000 to 6,000. When the fish grow to 8 cm, they can be divided into ponds and then put into the fish pond for adult fish.

3. Feeding and feeding When 2 cm seedlings are placed, the amount of zooplankton in the pond can basically meet the demand for several days. When the fish species are between 2 and 3 cm, the best feed is active feed such as rotifers, copepods, cladocerans, chironomid larvae and water earthworms. As the individuals grow larger, the natural feed in the pond decreases, and artificial mixed feed must be fed to meet the feeding needs of the seedlings. First, build a feeding table in the pond. The materials should be bamboo mats, straw mats, and colored strips. The area of ​​the feeding table per acre of pond is about 6 to 8 square meters. It is best to make the feeding table able to rise and fall. Fix the feeding table with bamboo stakes about 10 to 20 cm from the bottom of the pond, and then feed the bait on the feeding table.

4. Daily management of breeding During the entire fish breeding process, daily pond management is a meticulous, multi-faceted and regular task, which is the key to improving the survival rate of fish and enabling them to reach large sizes.

(1) When feeding the animals every day, special attention should be paid to the “four conditions”, namely, timing, positioning, quantity and quality.

(2) Clean the feeding area once every 3 to 5 days and disinfect it with bleach (0.3 to 0.5 kg) once every half a month. If pellet feed is used, the frequency can be reduced appropriately. Weeds around the pond and rotten dirt in the pond should be removed regularly to maintain pond hygiene and prevent the breeding of harmful insects and bacteria.

(3) Patrol the pond once every morning to observe the water color and fish activity, especially the floating of fish. If the floating of fish is serious, add new water in time. Observe the changes in water quality and the amount of fertilizer and feed. In the afternoon, patrol the pond in conjunction with feeding or checking the feeding situation so as to find problems and solve them in time.

To cultivate yellow catfish in a pond, first of all, the water body should be kept at a high level of dissolved oxygen. Yellow catfish has a high requirement for dissolved oxygen in pond water, so when mixed culture is carried out, the water quality should be fresh and the dissolved oxygen should be sufficient. Secondly, the stocking density and stocking specifications should be maintained at 30 to 60 fish. Other carnivorous fish should not be mixed during breeding.

We need to pay attention to the environment and humidity around the pond. At the same time, we need to disinfect the pond regularly to kill the surrounding diseases. Usually, we need to pay more attention to the fermentation of feed.

To cultivate summer flower fish of yellow catfish, first of all, we should pay attention to the pond conditions and the water quality of the water source should be qualified. Secondly, we should clean and disinfect the pond. We should also pay attention to fertilization and the cultivation of natural bait. We should also pay attention to the method of putting the fry into the pond and the precautions for the fry to be released. Finally, the fry bait is fed, and rotifers and bloodworms should be added in time during the fry breeding process. For the feeding habit domestication of fish fry, it can start 3 to 5 days after the fry are put into the pond, and the fry will eventually be domesticated to focus on artificial compound feed.

2. What is the reason why the body of the new fry turns red after entering the pond? Please support

Lack of oxygen during transportation.

3. Is the head of the grass carp red?

This happens when there is a lack of oxygen or the water contains a lot of chlorine or bleach. Most of the time it is caused by tap water. It doesn't have much impact. If you are worried, you can cut off the fish head before feeding.

4. My finger was pierced by a longspined fish bone, and it became infected, red, and swollen. I did not get better after seeing a doctor.

Hello, according to your situation, the cause of this physiological change is due to organic lesions in the body or blood lesions caused by viral or fungal infection. It is recommended that you go to