Technical points of artificial Culture of Pelteobagrus fulvidraco

Pelteobagrus fulvidraco, also known as Pelteobagrus fulvidraco and Pelteobagrus fulvidraco, is a warm water fish with strong adaptability and can be cultured in all kinds of waters. Easy to raise, high price and good benefit. Its tender meat, delicious taste, is a high-quality aquatic products, more and more loved by the majority of consumers.

Technical points of artificial Culture of Pelteobagrus fulvidraco

Pelteobagrus fulvidraco likes to live in still water or slow water. The range of survival temperature is 0 ℃ ~ 39 ℃, the most suitable water temperature for growth is 22 ℃ ~ 28 ℃, the optimum pH value is 7.0 ~ 8.5, and the suitable dissolved oxygen is more than 3.0mg / L. Under natural conditions, fish larvae that have just hatched for 3 to 5 days absorb their own yolk as nutrition. In the seedling stage, rotifers, small cladocera, water earthworms and other aquatic worms were used as bait to artificially cultivate minced small fish, shrimp and molluscs, or compound feed.

In general, Pelteobagrus fulvidraco is sexually mature at 2 years old in females and 3 years in males. The peak breeding period is 23 ℃ ~ 26 ℃, and the number of eggs per fish is 4000 to 6000 eggs. Like carp and crucian carp, they are sticky and sinking eggs. The fertilized eggs usually hatch their larvae after 72 hours at a water temperature of 24 ℃ ~ 26 ℃. There are two ways of artificial culture of Pelteobagrus fulvidraco: monoculture and mixed culture.

The main measures for monoculture are as follows: select ponds with fresh water quality, rich dissolved oxygen, convenient access and drainage, with an area of 2 to 3 mu and a water depth of 1 to 2 meters, install drainage fences and protective nets, and remove silt from the ponds and disinfect them with quicklime and bleaching powder. 2500 to 3000 winter slices of Pelteobagrus fulvidraco with a length of about 3 centimeters per mu and 100 to 200 silver carp with a body length of 12 centimeters can also be set up. After stocking, feed fresh earthworms, clam meat, small fish, shrimp and other animal bait, daily feeding amount of fish body weight 3% to 6%.

In the summer and autumn high temperature season, the water is changed every 7 to 10 days, with a depth of 30 to 40 centimeters each time, and the transparency of the pool water is kept at 35 to 40 centimeters. In order to prevent the occurrence of fish disease, the fish should be medically washed during stocking, usually with 10ppm potassium permanganate or 2% to 4% salt solution for 5 to 10 minutes. During the feeding period, the whole pool was sprinkled with bleach and quicklime every 15 to 20 days to make the pool water reach the concentration of 1.2ppm and 10ppm, respectively. Every month, rhubarb, Radix Isatidis and other traditional Chinese medicine were used to make bait with 0.1% to 0.4% additive amount, and the bait was fed for 3 to 5 days. At the same time, fish damage should be avoided in fishing, release and transportation, so as to prevent water mildew infection in early spring, autumn and winter. The yield per mu of monoculture can reach 200 to 300 kg.

The method of mixed culture is to put 100 to 200 species of yellow croaker with more than 3 centimeters per mu in the surface of the four major domestic fish or special aquatic products such as tilapia, river crab and soft-shelled turtle, such as net enclosure and pond. Under the premise of not affecting the yield of the main species, 20 to 30 kg of Pelteobagrus fulvidraco with tail weight of 150 to 200 grams per mu can be obtained. Mixed culture of Pelteobagrus fulvidraco can not only reduce the number of small miscellaneous fish and shrimp competing with the main fish, increase the yield of the main species, but also effectively control parasitic diseases such as anchored fish.

What does the yellow catfish eat?

Natural waters mainly feed on shrimp, aquatic insects, aquatic plants and so on. Artificial culture can use fresh animal feed or artificial compound feed. Small fish, shrimp, snail meat, livestock and poultry scraps and other animal bait can be ground up with soil flour as a binder, stirred into a ball, and fed on the bait table. Special formula feed can also be used to achieve timing, fixed point, fixed quality and quantitative feeding, accounting for about 5% of the fish's body weight twice a day, accounting for 1 prime 3 in the morning and 2 prime 3 in the afternoon.

Nutritional value of Pelteobagrus fulvidraco

Rich in protein, with the ability to maintain potassium and sodium balance; eliminate edema. Improve your immunity. Lower blood pressure, buffer anemia, conducive to growth and development. Rich in copper, copper is an indispensable micronutrient for human health, which has an important impact on the development and function of blood, central nervous system and immune system, hair, skin and bone tissue, brain, liver, heart and other internal organs. Adjust osmotic pressure and maintain acid-base balance. Keep blood pressure normal. Enhance neuromuscular excitability.

The yellow catfish tastes sweet and flat. It can benefit spleen and stomach, diuresis and detumescence, dispel wind and sober up alcohol, clear heat and remove fire, resolve phlegm and stop cough, dredge milk and raw milk.

1. Moisture edema (acute nephritis, nephrotic syndrome, etc.):

3 tails of yellowtail, 1 small cup of mung beans, 1 head of garlic, boiled in water, go to fish, eat beans, and drink its soup, do not use salt.

2. Dysentery ulceration:

Yellow peel 1 tail, cut off intestinal miscellaneous, into 20 castor seeds, yellow mud sealed, calcined in charcoal fire, remove mud, fine powder, apply with vegetable oil twice a day, wash and wipe the affected area with salt water before use. (this prescription can also be used to treat lower limb ulceration. )

Culture techniques of Pelteobagrus fulvus

First, the preparation of the pond is very simple: sufficient water is required, the water quality is fresh and pollution-free, the drainage and irrigation is convenient, the area is 3-10 mu, it is best not to choose the aged pond with thick silt. Every pond must have controllable inlets and drains. The water depth is less than 2 meters, which is beneficial to the feeding of Pelteobagrus fulvidraco. The pond sterilizes the pond with lime or bleach before releasing the fish. 0.8-1.0 meters of water was injected into the pond on the second day after disinfection, and appropriate weight of fermented mature organic fertilizer was added to reproduce natural bait on the 3rd-4th day. After the toxicity completely disappeared, the fish was put into the fish and filled with water.

Second, the fingerling released and released, whether caught from natural waters or artificially bred, are required to be disease-free and injury-free, physically strong, with basically the same specifications, with a general tail weight of about 15 grams, and a stocking period of between March and April, with 1000-1500 fry per mu. Collocation breeds should not use common carp, crucian carp, tilapia and other omnivorous bottom fish with similar living habits to Pelteobagrus fulvidraco, so as not to affect the growth of Pelteobagrus fulvidraco.

Third, daily management insists on patrolling the pond three times in the morning, in the middle and in the evening, carefully observing fish activities, feeding and growth, and dealing with problems in a timely manner; frequent injection of new water can not only prevent the deterioration of water quality, but also prevent fish morbidity and floating head phenomenon. It is best to inject 20-30 cm of new water every 10 days and turn on the aerator on cloudy and rainy days. Long-term feeding will make the water quality of the pond weakly acidic, which is not conducive to the growth of Pelteobagrus fulvidraco. Quicklime is generally used to regulate the PH of pond water quality.

Fourth, fish species should pay attention to operation when transporting, stocking and fishing, so as to avoid fish injury due to collision. Attention should be paid to the strict control of the dosage when using the medicine. Pelteobagrus fulvidraco is sensitive to copper sulfate, trichlorfon and other drugs, especially with caution.

Pelteobagrus fulvidraco I think we are all very familiar with, many people like to eat Pelteobagrus fulvidraco, because the nutritional value of Pelteobagrus fulvidraco is very high, and the thorns of Pelteobagrus fulvidraco are very few, so it is very suitable for some old people and children to eat, and the protein content of the fish is very high, many people like to eat it.