High density fish culture technology in canvas fish pond

1. Drainage management: set two drains, with a floor drain in the middle and an overflow. 2. Water level depth: The water level of the canvas fish pond should not be too high, and should be controlled at about 60- 120cm. 3. Pond treatment: sprinkle quicklime for disinfection. 4. Bait feeding: mainly small fish and shrimp are fed 1-2 times a day.

How to raise fish with high density in canvas fish ponds 1, drainage management

When raising fish in canvas fish pond, it is suggested to set up two drains, with floor drain in the middle, using the bottom of the pot to discharge sewage, and add an overflow drain, which is set next to the water inlet, about 20 cm away from the water inlet, without affecting the flow of water in canvas fish pond and facilitating the adjustment of the water level in the pond.

2. Water level depth

For smaller fry, the suitable water depth is about 60 cm, so the water level of canvas fish pond should not be too high. If it is a big fish, you can raise the water level to 1.3 m, which is beneficial for the fish to hide.

3. Pond treatment

When using canvas fish pond to raise fish, the water in the pond should be drained first, and water should be made with quicklime 140- 150 kg every 667 square meters, and the whole pond should be evenly splashed with water, turned over with a rake and other tools, fully disinfected, and then an appropriate amount of organic fertilizer should be applied to the pond water.

Step 4 feed the bait

In the process of breeding, fry should be fed with fresh food, mainly small fish and shrimp, and appropriate bait should be fed around the pond every morning. When the fry grow up, feed them 1 time at 9: 00 am and 4: 00 pm every day, and the daily feeding amount is 5%- 10% of the fish weight.