Technical points of ecological culture model of Loach

In recent years, Loach has become a treasure on the dining table of the common people. Because Misgurnus anguillicaudatus has strong adaptability to the environment, easy breeding and breeding, low production cost and high economic benefits, the artificial culture of Loach has been more and more valued by the majority of farmers. In the process of Misgurnus anguillicaudatus culture, the stocking density should be reasonable, scientific feeding and fertilization should be made, fresh water should be added frequently to keep the water quality fresh, and disease prevention should be paid attention to in order to promote its healthy growth and obtain good economic benefits.

1. Create a culture environment. Misgurnus anguillicaudatus has low requirements for culture environment, such as rice fields, courtyard cement ponds, reservoirs near water sources, shallow ponds and so on. Before releasing the seedlings, the pond mouth should be comprehensively renovated and disinfected. Because Loach likes to drill holes to escape, so the dike ridges around the breeding waters should be wide and strong, without caves, and there should be an anti-escape net at the outlet to prevent the Loach from escaping. At the same time, some aquatic plants (aquatic plants) should be planted at the edge of the pond to create a shaded, comfortable and quiet living environment for Loach. The roots of aquatic plants provide conditions for the reproduction of some benthos and natural bait for Loach.

2. Grasp and release the quality of seedlings. To choose a strong physique, swimming lively, smooth body surface, no injury, no disease, consistent specifications of Loach seedlings. Before putting it, you should bathe in 20-30 g / L salt water for about 10 minutes to kill the pathogens on the body surface. You should choose sunny morning or afternoon to put in, wind, rain, low pressure and cold weather should not release seedlings.

3. Reasonable stocking density. The stocking density should be determined according to the conditions of the cultured water area. In ponds, there are generally 150 summer flowers with a body length of 3 cm and 150 flowers per square meter, and seedlings with a body length of more than 5 cm can be stocked with 50 fish per square meter; in paddy fields, the tail weight of Loach is about 80 kg per mu, or about 20,000 Loach per mu with a tail weight of 2-5 grams per mu. Under the condition of good culture conditions and sufficient fresh bait, the stocking amount can be increased appropriately, otherwise the stocking amount should be reduced appropriately.

4. Bait. Loach is a kind of omnivorous freshwater fish, which likes to eat water fleas, silk earthworms and other plankton under natural conditions. In the process of breeding, the artificial feed is palatable and fresh. In the process of feeding, pay attention to the variety of food can not be changed frequently, otherwise it will reduce the periodic food intake of Loach and affect the growth rate. In addition, Loach gluttonous, feeding animal feed should not let Loach eat too much, otherwise, affect intestinal respiration, and produce toxic gas and death. Feeding can be stopped when the water temperature is higher than 30 ℃ or lower than 15 ℃.

5. Water quality management. The pool water should be yellowish green, the transparency should be 20cm to 25cm, and the pH should be neutral or weakly acidic. When the water color becomes brown, dark brown or the dissolved oxygen in the water is less than 2 mg / L, new water should be injected in time. Beneficial microbial preparations are often used. Keep the water quality in a state of fat, life, tenderness and freshness.

6. Disease prevention and treatment. In aquaculture work, prevention should be given priority to, and prevention and treatment should be combined. Sprinkle and sterilize with bleach once every semimonthly, so that the concentration of the pool water is 1ppm, or sprinkle 1015kg of quicklime into water at a depth of 1m per mu to regulate the water quality. In the summer and autumn high temperature growth period, often add new water, discharge old water, each time add new water 20-30 cm, keep the water quality fresh and fat, and relatively stable, prevent diseases, conducive to growth.

7. Capture the listing. It was captured from the end of the year to May of the next year, and the catch was taken to keep the small, with a listing specification of 70 to 90 tails / kg. Fishing method: pulling the net mainly, the ground cage net as the auxiliary. Finally, dry pond fishing is carried out.