What is the key to pond mandarin fish farming?

When breeding, we must choose high-quality varieties, and then we should also choose nutritious bait, pay attention to the sufficient oxygen in the water, and also need to regularly remove weeds in the water, replace the water source in time, ensure the cleanliness and hygiene of the water source, need to prevent diseases, pay attention to control the temperature, and do a good job of anti-freezing.

The key is the problem of cultivation, to carry out field management, we must pay attention to the temperature of the water quality, the quality of the water quality.

The key is the problem of variety, the variety of fish must be selected well, so that the fish can grow better.

The north and south aquaculture ponds are good for the rectangular ponds with length and width ratios, and the area of commercial fish breeding ponds is 3 5 acres, and the water depth is suitable in meters, so that a stable aquaculture water environment can be maintained, and it is convenient for daily management, while maintaining a high density of bait fish, improving the probability of mandarin fish feeding, and reducing energy consumption; Increase the growth rate of mandarin fish. In order to ensure that the bait is sufficient, more ponds should be selected to breed bait fish of different sizes. That is, about 20 days before the mandarin fish fry are put into the intensive culture pond, the mandarin fish fry are put into the intensive culture pond as the early bait, and the density is about 500,000 mu.

After 20 days of cultivation, the fish body grows to 3-5 cm, which is just enough to meet the feed needs of the mandarin duck fry after entering the pond.

<>, grass carp, silver carp, and bighead carp are put into bait fish breeding ponds in batches and at different densities to cultivate bait fish, with a stocking density of 1.5 million 2 million mu. The pond where mandarin fish is mainly raised should not be too large or too small, and it is generally appropriate to be per mu. It is required to choose a new pond with leeward and sunny conditions, a dirt bottom, little silt, or no silt.

The bottom of the pond is flat, slightly inclined to the drainage outlet, the water depth is about 2 meters, the irrigation and drainage system is perfect, the water volume is sufficient, the water quality is fresh, no pollution, and the water quality is good. 10 15 days before stocking, should be exposed to dry ponds, 10 cm of water, 100 kg of quicklime to clear the pond, the next day to the whole pond plus 5 kg of bleaching powder.

Mandarin fish is to feed on live bait, under the condition of normal breeding density of mandarin fish, it is also necessary to set up a certain number of bait fish, which is easy to cause a large load of pond fish, and the feces and residues are correspondingly oblique, so in the production process, a certain number of silver carp and bighead carp can be appropriately retained as filter feeding fish, so as to maintain the normal material and energy circulation of the pond, and provide a good water quality environment for the healthy growth of mandarin fish.

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First, the breeding conditions of the pond are strictly controlled, and the water flow is sufficient; the second is to strictly control the quality of fish fry and select varieties with good disease resistance; The third is to strictly control the feed of fish, medicine and rich nutrients to ensure the healthy growth of fish fry; Fourth, the quality of water is strictly controlled, and the water quality is not polluted; Fifth, strictly control pests and diseases, disinfect regularly, and expose to the sun if possible.

Be sure to choose high-quality varieties, choose the right water, and then you should also choose nutritious bait, pay attention to the time and interval of feeding, pay attention to the amount of feeding, clean and clean up regularly, do a good job of disinfection, and also need to keep the oxygen in the water sufficient to avoid diseases.

The first level is water quality, the second is environmental problems, the third is feed problems, the fourth is sanitation problems, and the fifth level is safety problems.

<>1. Selection and cleaning of crab ponds: Water source water quality: sufficient water source, no inflow of industrial sewage and domestic sewage, and water quality requirements meet the national "Fishery Water Quality Standards"; Crab pond substrate:

Sandy loam and clay soil are preferred, and the silt at the bottom of the pond is not more than 2o cm thick; Area and water depth: The area of the crab pond is 5-5o acres, and the depth of the water is 12 meters; Pond clearing: After the adult crabs are harvested last year, the pond water is drained, excessive silt is dug up, the permafrost is dried and the pond is cleaned with medicine.

Qingtang medicine can choose tea meal, quicklime, etc.

2. Transplant aquatic weeds and put snails. Transplanting aquatic weeds: transplanting aquatic weeds in March, the varieties are mainly small yellow grass and Elosa, with other varieties, the growth area of aquatic weeds should account for about 5o% of the crab pond; Put snails:

In mid-April, fresh snails were put in, about 5oo kg per mu, to ensure the purification of the water quality of the crab pond and the needs of crab feeding.

3. Crab seed stocking. Crab species should be selected neat specifications, strong physique, crawling agility, no injury and no disease of the Yangtze River system of Chinese mitten crab crab species, the specifications of l5o per kilogram of 2oo is appropriate, stocking density of about 6oo per mu.

Fourth, the stocking of mandarin fish fingerlings. In May, select high-quality mandarin fish fingerlings with a body length of 5-8 cm, and stock lo one l5 per mu.

5. Production management. The production and management of polyculture mandarin fish in crab ponds is carried out in accordance with the regular management procedures of crab aquaculture production, and there is generally no need to take additional bait and disease prevention measures for mandarin fish.

Through a cycle of feeding, on the basis of not affecting the yield and weight of river crabs, it can produce 5 pounds of mandarin fish per mu and 8 kilograms, and the individual weight of mandarin fish can reach about kilograms.

Mandarin fish, also known as osmanthus fish, seasonal fish, etc., belongs to the order Perch, Fin Family, and Mandarin Subfamily taxonomically. The body is fat and thick, the back is raised, the head is large, the snout is pointed, the scales on the body are small and rounded, the dorsal fin is long, the body is yellowish-green, and the body has brown stripes and patches of irregular size on the sides of the body. At present, there are many varieties of mandarin fish, such as Mandarin fish, Mandarin fish, Mandarin fish, etc., among which Mandarin fish has the characteristics of large individual size and fast growth rate, so the breeding is the most common and the breeding effect is the best.

Mandarin fish is a freshwater fish that prefers to inhabit clean still water or a slight flow of water, especially in lakes with abundant aquatic weeds, and is suitable for breeding in ponds.

Farms should have sufficient water sources and good water quality supply, and it is better to use non-polluted river water, lake water or large reservoir water. The pond area of adult mandarin fish breeding is 6-8 acres. The pond is too large to manage; If the pond is too small, the water quality is prone to deterioration, and in severe cases, it can cause hypoxia and often cause mandarin fish to become sick.

The water depth should be kept in meters. The bottom of the pool is kept with 15-20 cm of loamy silt. Newly excavated fish ponds without silt or sandy silt can be treated with an appropriate amount of organic fertilizer to enhance the buffering capacity of the water body and cultivate suitable water quality.

Old ponds with too much silt must be removed before stocking. There is a certain slope at the bottom of the pond, and there is a 30 cm fish trap at the low point, which is convenient for fishing. Pond stems should also be built into slopes to facilitate the cultivation of aquatic plants or aquatic vegetables at the edge of the pond.

Farmed mandarin fish ponds should be managed by special personnel, and the ponds should be inspected in the morning, noon and evening. In the morning, the pond patrol should observe whether the mandarin fish has a floating head, whether the bait is sufficient, if the mandarin fish floating head should be turned on in time to increase oxygen or fill with new water, if the bait is insufficient, it is necessary to increase the amount of feeding or the number of feeding. At noon, the pond should be inspected to observe the water color, transparency and weather conditions; If the water color is too strong, add water when the transparency is less than 40 cm, and add water or open an aerator in hot weather.

Patrol the pond in the evening to observe the feeding situation of the fish, and take measures in time if the fish are found to be inactive and the mandarin fish swim alone.

The pond for breeding mandarin fish requires a sandy bottom, less silt, an area of 3 5 acres, a water depth of meters, convenient drainage and irrigation, light water quality, no turbidity, no sewage inflow, and a small amount of fish pond with submerged aquatic weeds.

I don't know much about it, because this fish is relatively new to me, but I can look up some farming techniques on the Internet.

Be sure to choose high-quality varieties, and then you should also understand the growth cycle of this plant, you also need to choose high-quality feed, you need to change the water source regularly, and you also need to keep the oxygen in the water sufficient, so as to improve the survival rate of planting.

The living environment of live mandarin fish is very demanding, the water quality should be fresh, the nutrition should be rich, and the amount of bait for feeding mandarin fish is very large, and the fry is best to choose the breeding of natural water fishing, so as to ensure the quality and quantity of mandarin fish.

The water source of aquaculture should be sufficient, away from the polluted area, the water quality of the water source should be guaranteed, the water temperature should not be too high or too low, choose the live water fish pond, the fish pond should have a certain amount of flowing water, can not be stagnant water.