Pond fish pond healthy breeding techniques

The white spotted fish has a fast growth rate, a tough and stabless flesh and a delicious taste. It is popular among consumers. The average price is RMB 80 per dry powder and the market is in short supply. The white pike is not only worth eating, but also has strong ornamental characteristics. It has always been regarded as "soft gold" in fish in Central Asian countries. In the past few months, with the improvement of people’s living standards and the acceleration of the development, utilization, and promotion of fish with economic value in Xinjiang, the cultivation of pike has become popular. From 2007 to 2008, we conducted trials of pond fish breeding in Dinggou Village, Tashan Town, and achieved good economic benefits. The relevant situation is summarized as follows.
First, materials and methods
1. Pond pond ponds should be 5-8 acres, 2 meters deep. Adequate water supply, water pollution, eduction, drainage, irrigation, and groundwater are the best, ensuring that the water temperature can be lowered in the hot season. At the same time, water shades such as water lilies are placed on the surface of the pond, and it is best to keep the aquatic species such as cedar seedlings in the pond as a hidden place to prevent gnawing each other.
2. Seedlings before stocking the white-spotted puppies in the lower pond should be prepared with enough palatable bait fish. When they are 5 cm in length, they can feed about 6 days of bait fish. Generally used for the cultivation of the original pond, that is, disinfection before the release of seedlings, fertilization and cultivation of bait fish, when the bait fish grow into 5 to 6 days old into the 5 cm long white spot dog fry.
(1) Bait fish: 200,000 to 300,000 waterfloats, such as oystercatchers, cormorants, and oysters, should be stocked for each acre, and the size of the dogfish body should be l/2 to 1/3.
(2) Density: 1000 tails/mu of dog species above 5 cm.
(3) Restocking time: From April to May, when the water temperature rises above 15°C, stocking can be started.
3. Daily management
(1) Parenting: Long before, 10 to 15 people are raised once; after 13 to 15 centimeters, the rearing interval is 15 to 20 days; with the growth of the pike, the palatability and quantity of the desired bait fish are also With increasing numbers, feedings should be increased in time. In the summer, the high-temperature season should stop feeding, and they should be raised once every 30 days after the fall. The grading screen for separation and maintenance, with water operation, moves quickly and avoids damage. After disaggregation, use a disinfectant per cubic meter of water. 3 grams of spit disinfection.
(2) Water quality regulation: In the early stage of cultivation, the pond water level control is kept within 1.5 meters; with the increase of water temperature and the growth of the fish body, it is gradually deepened to 2 meters; in high temperature season, underground deep well water can be injected into the pond every day To control the water temperature below 28 °C. Regular use of photosynthetic microbes in micro-zeolous preparations regulates water quality, which is high every 15 days in the season, with a dosage of 2.5 kg/mu. In addition, according to the water quality conditions, timely cast biological fertilizer, EM liquid and sediment improver, so that the water always keep "fat, live, tender, cool", dissolved oxygen 5 mg or more
(3) Disease prevention and control: Poleopsis has strong ability to adapt to the environment, and has few diseases; if bacterial gill disease occurs, 0.3 mg/L of superior chlorine or 0.3 mg/L of diterpene can be used. The whole pool is splashed once a day for two days. The effect is very good. Regular use of quicklime 15 ~ 20 kg / mu Quanchiposa for routine disinfection. At the same time, in the high-temperature season every 25 days with a net disinfection of 0.2 mg of chlorine plus chlorine, while paying attention to the pool of water, keep the water cool.
(4) Overwintering: As the white-spot fish do not stop feeding during the winter, they continue to grow slowly under adequate feed conditions. Therefore, the appropriate amount of bait fish should be put into the wintering pool of puppies in order to ensure adequate winter bait fish and to prevent the killing of individuals between puppies, which is one of the key factors to increase the survival rate of pika.
Second, the results
In 2007, the pike culture experiment was started, and 5000 large-sized (5-centiose water) white spotted dog turtles were stocked, 1580 kg of commercial fish were harvested, and the market size was 0.6 kg/tail. The total output value is 121,000 yuan, and the breeding survival rate is 52.6%.
In 2008, 70 acres of pike was farmed, and 97,000 pikes of 4 pence were stocked. 25,724 kilograms of commercial fish were sold, and 0.85 kilograms per tail was listed. The breeding survival rate was 31.2%.
Third, the summary
1. When the pond pike is cultured in a pond, the water temperature directly affects the survival rate of the pike breeding, the breeding cost and the length of the breeding cycle. therefore. During the breeding process, we must pay close attention to changes in the water temperature of the pond. When the temperature exceeds 24°C, the activity of the fish is obviously aggravated, the temperament is unstable, and it is easy to cause fighting and accidental injury. In the high temperature season, measures such as raising the water level of the pond or building a grape trellis on the south bank of Xiangyang can be taken.
2. Pikefish quickly die in a low dissolved oxygen environment. Therefore, the stocking density of Pneuma species should be appropriately reduced (including the amount of bait fish and flowering whitefish) in aquaculture production; regular use of probiotics (such as photosynthetic bacteria) Adjust water quality: keep the sediment in the culture ponds low, avoid injecting too much fertilizer and water to prevent the deterioration of the water quality in the remaining ponds; often add new water to ensure that the pool water is circulated. Maintain a high dissolved oxygen content in the water body.
3. The white-tailed pike is used in ferocious fish. The main bait fish in pond culture are small carp, carp, summer whitefish and wild fish. Before feeding the bait, care should be taken to check whether the bait fish is borne by pathogens. Disinfect the bait fish before each feeding (feeding bait fish should be sterilized with 3% to 5% salt water) to avoid pathogens through the bait fish. And infection. Pikefish favorite food bait fish specifications is one-third of its body length, daily food intake can be based on each tail pike fish about 5 pounds a day of bait fish count.
4. To avoid mechanical damage to the fish during transit, adjust the water temperature step by step and must not be rushed. The fish will kill each other on the second day of their return. We must reasonably arrange the density, make a good grade, and ensure that there are enough fish.

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