CATDOLL : CATDOLL: How is rice field breeding loach? What are the technical requirements? How is rice field breeding loach? What are the technical requirements?

How is rice field breeding loach? What are the technical contents? How is rice field breeding loach? What are the technical contents?

1. Although breeding loaches in rice fields is relatively easy to operate, there are also some precautions. The rice fields need to be transformed, and a circular ditch with a width of 2-3 meters and a depth of 0.8-1 meters should be dug around the rice fields. The circular ditch accounts for about 10%-15% of the total area. An area of ​​about 2-2.5 meters wide should be left in the middle to facilitate mechanical operations in the fields. The ridges should be firm and retain water and fertilizer. Attention should be paid to anti-leakage work, such as laying brick walls and applying cement surfaces.

2. When raising loaches in rice fields, do not release too many loach seedlings. Generally, 15,000 to 20,000 3-4 cm loach seedlings are released per acre. The seedlings should be disinfected with 2% to 3% salt water before being released. During the breeding process, aquatic plants, diatoms, blue algae, etc. can be planted in the ditch. Loaches feed on plankton. At the same time, loaches should be fed with artificial feed such as bean cakes, peanut cakes, earthworms, and maggots.

3. In the daily management of rice field cultivation, attention should be paid to daily inspections. First, observe whether the loach is sick. Generally, it is not easy to get sick, but preventive work should also be done; second, observe changes in water quality, pay attention to controlling the water level and water quality, and adjust the water level according to the growth of rice and the needs of loach; third, pay attention to checking escape prevention facilities, and pay attention to inspections on rainy days to avoid leaks in rice fields or collapses and seedlings running away.

4. When breeding loaches in rice fields, you should be careful to choose pesticides and chemical fertilizers that have no effect on loaches. Organic fertilizers should be used as base fertilizers. Do not use fertilizers such as urea ammonium and phosphate ammonium. You can use chlorantraniliprole, propiconazole and other drugs. You can also use organic farming without using pesticides or chemical fertilizers. Although the rice yield is low, the price of rice is high!

How to cultivate loach and snails in rice fields? What do snails eat to grow?

1. Cultivating loaches: After raising and widening the rice fields, dig buffer ponds and pools in the rice fields, disinfect and fertilize them, and then release loach seeds. Release 30-40 loaches per square meter, with a specification of 5-8g/tail. After the loaches eat normally, feed them once a day, and the feeding amount is 5% of the loach's body weight. 2. Cultivating snails: Raise and widen the rice fields, disinfect and fertilize them, and then release 5,000-10,000 snail seeds per mu of rice fields.

1. How to cultivate loach and snail in rice fields

1. Raising loaches in rice fields

(1) Rice field transformation

① Choose rice fields with sufficient water sources, good drainage and irrigation performance, sufficient sunlight, warm and ventilated environment for breeding. Clay soil is preferred.

② The ridges of the rice fields are raised to about 40-50cm and about 50cm wide. Drainage outlets and water inlets are set up in the rice fields, and anti-escape facilities are installed at the drainage outlets and water inlets.

③Dig a buffer pond at the water inlet with an area of ​​about 4 square meters and a depth of about 60 cm.

④ Dig a pond in the center of the rice field, with an area of ​​about 6% of the rice field. The pond is trapezoidal in structure, with a depth of 1.5m in the middle and slightly higher than the middle at both ends, about 80cm. The guide ditch is cross-shaped, extending from the center of the pond to the four sides of the enclosure to 3m from the enclosure.

(2) Release of loach seeds

① Drain the water in the rice field, dry it in the sun for about 3-4 days, then spread 120-150kg of rice bran per mu of land, apply 300kg of decomposed organic fertilizer the next day, then fill the water in the rice field to about 15-30cm, and put in loach seeds.

② Release loach seeds about 7-10 days after transplanting, 30-40 loaches per square meter, with a weight of 5-8g/loach. If it is a double-season rice, loach seeds should be released after the second transplanting.

③ The loaches released must be healthy, intact and free of abnormalities.

(3) Feeding

① In the first week, feed a mixture of rice bran and silkworm pupa powder once every 3-4 days.

② After the loach starts to eat normally, feed it once a day, with the feeding amount being about 5% of its body weight. The feed can be a mixed feed made of wheat bran, bean dregs, earthworms, etc.

③Loaches are accustomed to foraging at night, so the time for feeding is generally chosen in the evening. At this time, the water temperature is relatively warm and loaches are relatively active, which is conducive to one-time feeding.

④ Do not feed the crops on rainy days or when fertilizers or pesticides are being applied to the rice fields.

(4) Management

① When the water in the rice field turns black, or the color is too dark, the water quality is too rich, or the temperature exceeds 30℃, new water needs to be injected in time and the water depth in the rice field should be kept at about 6cm.

② In spring and autumn, irrigate shallowly. In summer, irrigate deeply.

③When it rains heavily, it is necessary to check the escape prevention facilities in time to prevent loaches from escaping.

2. Farming snails in rice fields

(1) Rice field transformation

① Choose rice fields with sufficient water sources, good water quality, good irrigation and drainage performance, and sheltered from the wind and facing the sun for breeding.

② Raise and widen the ridges of the rice fields to more than 50cm.

③ Set up water inlets and outlets in the rice fields, and install anti-escape facilities at the inlets and outlets.

④ Dig a cross-shaped or well-shaped ditch in the rice field. The depth and width of the ditch should be about 30-40cm.

⑤ Dig a square or rectangular snail collection pit on the edge of the field, with a water storage depth of about 60-80cm and an area of ​​about 10% of the rice field.

⑥ Before transforming the rice fields, apply 50kg of quicklime slurry to each acre of rice fields for disinfection, and then apply 300-500kg of decomposed pig manure or cow dung to each acre of land.

(2) Farming of snails

① The snails released should be large, with intact shell surfaces and the ability to quickly retract into their shells when frightened.

② Release your feet in batches or all at once during March to October, and try to avoid the hot season.

③ Release 5,000-10,000 snails per acre of rice field, with the size of the snails being more than 10g each.

(3) Feeding

①The foods that can be used for feeding mainly include rice bran, vegetable cakes, wheat bran, bean dregs, duckweed, vegetable leaves and animal leftovers.

② When the water temperature is below 15℃, no feeding is needed. When the water temperature is 20-28℃, a large amount of feed is needed, once in the morning or evening.

③ Feeding should be carried out at multiple locations, and the feeding locations should be fixed and evenly distributed in the field.

④The feeding amount should be adjusted according to the snails’ eating habits.

⑤ After the snails give birth, the feed particles should be very small, and eggs or turtle feed should be mixed into the feed.

(4) Management

① The water quality of the rice field is required to be relatively rich, with a high content of plankton, an oxygen dissolved content of more than 3.5 mg/L, and a water depth of about 10 cm. If the water temperature is too high or too low, it can be regulated by adjusting the water depth.

②Apply top dressing regularly. Depending on the water quality, apply 50-100kg of organic fertilizer or 0.5-1kg of chemical fertilizer per mu of land each time.

③ When the water body is lacking in oxygen or the water temperature is too high, inject new water in time, and the amount of water changed each time is about one-quarter to one-half.

④In summer, water changes are more frequent. In early spring and late autumn, water changes are less frequent.

⑤ When it rains, check the escape prevention facilities to prevent snails from escaping.

2. What do snails eat to grow?

1. The diet of field snails is quite varied. In the wild, they mainly feed on tender stems and leaves of aquatic plants, algae, bacteria, organic debris, and plankton.

2. If you want to raise snails artificially, you first need to apply an appropriate amount of organic fertilizer to cultivate plankton to provide food for the snails. In addition, you can also feed them green vegetables, rice bran, duckweed, bean dregs, wheat bran, fish viscera, vegetable cakes, bean cakes, etc. The fish viscera need to be chopped and mixed with rice bran and other feeds before feeding, while the vegetable cakes and bean cakes need to be softened before feeding.