I. Pond treatment

1, the pond is required to be close to the water source, with a flat bottom, solid ridges around the pond, and independent drainage pipes, and the silt at the bottom of the pond should be controlled at about 10-20cm.

2. The water depth should be controlled at around1.2-1.5m. If the water depth of the pond exceeds 2m, 2-3 aerators should be provided.

3. Drain the water in the pond before stocking, choose a sunny day and expose it to the sun for about 10-20 days. Then make mud out of quicklime and scatter it all over the pool.

4. About 7 days before stocking, photosynthetic bacteria and water-rich amino acids are added to the pond to fertilize water, or organic fertilizer can be applied to the pond to fertilize water.

Second, stock fry.

1, and the stocking time is generally selected in the middle and late June of 10 or the early October of 10/0.

2. The stocked fry should be 7-day-old fry with bright colors, healthy constitution and no injury or disease.

3. Stocking 1800 fish fry in each mu of pond, and soaking and disinfecting with 5% salt solution for about 10 minute before stocking.

Third, feeding

1, the daily feeding amount is about 3-8% of the weight of carp, and it is appropriate for carp to eat about 80% full.

Feed 1 time every day in February and March. Feed 2-3 times a day in April. In May, feed 3-4 times a day. Feed 4 times a day from June to September. Feed 3-4 times a day from June 5438- 10. 1feed 1 1-2 times a day in October.

Fourth, management.

1, the transparency of water body should be kept above 30cm, and the water should be changed once every 7 days, and the amount of water changed each time is about one third.

2. In the hot season, every 15 days or so, 25 kilograms of quicklime is poured into the pond per mu to prevent carp from getting sick. If the water in the pond is turbid, use 1kg alum per mu of pond and pour it all over the pond.

In March, July and September, according to the weather conditions, start the aerator for aeration. Turn on the machine twice a day. Turn it on for about 2 hours during the day and 4 hours at night.

Verb (abbreviation of verb) matters needing attention

1. Carp belongs to bottom fish, and the ph value of water should be controlled between 6.3 and 8.4.

2. The growing water temperature is between 25-32℃. When the water temperature is higher than 32℃ or lower than 15℃, the growth rate will decrease. Stop eating when the water temperature is higher than 35℃ or lower than 8℃.

3. The requirement of carp for oxygen is low, and the dissolved oxygen in the pond is about 4-4.5 mg/L. When it is lower than 2mg/L, the food intake decreases, and when it is lower than 1mg/L, it begins to float.