Who knows how to raise yellow croaker?

Pelteobagrus fulvidraco, commonly known as yellow bone fish, is also called yellow diced or yellow diced.

1. Living habits

Pelteobagrus fulvidraco is a kind of freshwater bottom fish, which likes to live at the bottom of the water and be inactive during the day. At night, it swims to the middle and upper layers of the water to feed. Pelteobagrus fulvidraco culture requires less water quality and higher dissolved oxygen, and the suitable temperature is 0 ~ 38℃. Pelteobagrus fulvidraco is a mild carnivorous fish, and likes eat small fish, shrimp, snail meat and artificial compound feed.

Step 2 raise seedlings

The number of seedlings per mu (1 mu =667 square meters) is10 ~120,000, which can be used for fertilizing and cultivating biological bait in ponds, and also for sprinkling soybean milk, peanut cake or egg yolk. After being raised to the size of 3-4 cm, 30,000-40,000 heads will be raised in the pond per mu, and after being raised to the size of 6-8 cm, they will enter the stocking stage.

3. Adult fish culture

(1) The main pond covers an area of 3 ~ 8 mu, with a water depth of 1.2 ~ 1.5 m, and 5000 ~ 10000 fish fry are cultivated on each mu of water surface, and the cultivable tail weight in that year is 75 ~100g.

(2) Interplanting 500 ~ 1000 Pelteobagrus fulvidraco fry in the pond can produce 35 ~ 60 kilograms of commercial fish.

(3) About 500 Pelteobagrus fulvidraco fry can be cultivated in each square meter cage, and commercial fish can be cultivated in that year.

2. Culture of Pelteobagrus fulvidraco

In the tea houses, restaurants and seafood restaurants in the Pearl River Delta and our city, diners can taste a new variety called Pelteobagrus fulvidraco, which is tender and delicious, and is deeply loved by consumers.

Pelteobagrus fulvidraco is a kind of high-quality and precious fish in China, commonly known as yellow croaker and bone fish. It grows in rivers, lakes, reservoirs or their tributaries, inhabits the bottom, and feeds on various benthic invertebrates, small miscellaneous fish and shrimps. It has wide adaptability to the ecological environment and low requirements for environmental factors such as nutrition. So it can be cultivated (or proliferated) in waters with good conditions.

Pelteobagrus fulvidraco has a stout body, a slightly flat head, a flat trunk and tail, an inclined back, a broad and flat chest and abdomen, a thin skin on the top of the head, a rough epidermis, a round kiss and eyes. The mouth is cracked, the teeth are small and fluffy, the lips are thin and simple, the upper pillow is exposed, the bone spurs extend backward, four pairs of whiskers are covered with eight gills to 10.

Pelteobagrus fulvidraco is a widely distributed fish, which can be found in the Pearl River system and other rivers and lakes in Guangdong Province. In Guangdong, there are three kinds of fish belonging to Pelteobagrus fulvidraco, namely Pelteobagrus fulvidraco, Pelteobagrus fulvidraco and Pelteobagrus fulvidraco.

Several problems in the culture of Pelteobagrus fulvidraco;

First, the breeding conditions

No matter ponds, cages or other aquaculture water bodies, their water sources must be sufficient and pollution-free, and the sediment and surrounding ecological environment must be suitable for the growth and development of Pelteobagrus fulvidraco.

Second, the source of fish species

Fish can be fished from rivers and lakes or cultured artificially. No matter what their source is, they must be cultured in standard thickness, and the specifications of fish species put into adult fish ponds and cages reach 30 to 50 grams. Such specifications have high survival rate and fast growth, and can reach the specifications of commercial fish on the market in time (150g or more). Stocking fish should be completed before the end of March of that year, and it can be caught and listed before 65438+February of that year to reduce winter losses and deaths.

Third, feed high-quality feed

Improving the quality of bait is an effective measure to improve the survival rate, market specifications and economic benefits of Pelteobagrus fulvidraco. Pelteobagrus fulvidraco is an omnivorous fish that mainly feeds on animals. Therefore, the crude protein content of feed should be above 35%, accounting for 2% ~ 2.5% of fish weight before May, and the water temperature is high from June to August. Pelteobagrus fulvidraco is at the peak of vigorous growth, and it can be fed at 4% ~ 5% of the fish weight. After September, the water temperature gradually decreased, the amount of concentrated feed gradually decreased, and the frequency and frequency of feeding were changed according to the fish's feeding situation and weather changes. Feed 1 2 times a day.

Fourth, pay attention to the regulation of water quality and the prevention and treatment of diseases.

Pelteobagrus fulvidraco requires high water quality. It is necessary to keep the transparency of water at 35-45cm and the PH value at 6.5-8, change the water once a month, install an aerator in the pond, and start it regularly or irregularly to increase the dissolved oxygen in the water, avoid or reduce the phenomenon of floating head or flooding in the pond, and make the yellow catfish grow normally. We should prevent fish diseases in time, do a good job of prevention, regularly use quicklime, bleaching powder or other drugs for disinfection to kill bacteria, viruses and other pathogenic microorganisms in the pond and reduce the occurrence of diseases.