CATDOLL : CATDOLL: How to raise grass carp

1. How to raise grass carp

1. Choose a suitable fish pond: The best fish pond area is 3500-4000 square meters, with a water depth of more than 2 meters, no water leakage, sufficient water source, and convenient filling and drainage. If the output is more than 500kg/667 square meters, each 667 square meters of pond should also be equipped with an oxygenation device of about 0.5kw.

2. Select high-quality fish: High-quality summer flower fish have plump bodies, shiny body colors, complete scales, strong water-resistance, and gill covers that do not open immediately after leaving the water. Before stocking, the selected summer flower fish should be disinfected by soaking in 3%-5% salt water.

3. Cultivate suitable bait: To cultivate summer grass carp, the fish pond should be cultivated with duckweed or small duckweed before the fry are put into the pond. After cleaning the pond of one-year-old grass carp, 4000-5000kg of organic fertilizer should be applied per 667 square meters. Use bamboo to divide the water surface into a cross-shaped frame, and then put 16-25kg of duckweed or small duckweed seeds per 667 square meters, and put duckweed into the frame. Apply 25-50kg of organic fertilizer every two days, or dilute 1kg of ammonium bicarbonate with 0.5kg of superphosphate and sprinkle it all over the pond, once in the morning, noon and evening every day to accelerate the reproduction of duckweed.

4. Stocking at the right time and in the right amount: The stocking quantity varies according to the different conditions and breeding levels in different places. The planned yield is above 500kg/667 square meters. Generally, 4,000-5,000 grass carps, 2,000-3,000 crucian carps, 500-600 carps, 100 black carps, 2,000-3,000 silver carps, and 500 bighead carps are stocked per 667 square meters of water surface. When stocking, the main fish should be stocked early, which can not only ease the conflict between summer flower grass carps and supplementary fish for food and space, but also further improve the specifications of the main fish, thereby enhancing their ability to compete for food.

5. Strengthen feeding: When summer grass carp are put into the pond, there is no need to control the amount of food they eat. Feed them as soon as they finish eating. It is required that the grass carp should be more than 10cm long before the stocked fish are put into the pond, and the size should be uniform. When summer grass carp are put into the pond, they mainly feed on cladocerans and duckweed. 2-3 days before the small duckweed is eaten, let the fish switch to finely chopped tender dry grass or purple-backed duckweed and verticillaster hydrilla. In July and August, the amount of feed should be appropriately controlled, and no feeding should be done at night. In late September, the feeding should be strengthened to allow the fish to eat day and night.

6. Strengthen water quality management: within 20 days after the summer flowers are planted in the pond, the water quality should be richer. Sprinkle 75kg of grass pulp every day and add new water every 2 days, 10cm deep each time; after 20 days, the water quality can be lighter. In addition to adding new water frequently, some old water should be drained. The transparency of the water quality can be maintained at about 35cm to promote the appetite of grass carp. In mid-to-late September, gradually reduce the number of water additions and apply chemical fertilizers every 7-10 days. Each 667 square meters of fish pond can apply 1.5-2.5kg of urea and 2.5-5kg of phosphate fertilizer each time.

7. Do a good job in fish disease prevention: Sprinkle 20g/m3 of quicklime throughout the pond at the end of July and August, sprinkle 0.5g/m3 of crystal trichlorfon and 0.2g/m3 of ferrous sulfate throughout the pond in mid-August and mid-September. Feed the fish with furazolidone bait for two courses between mid-August and mid-September, and the feeding table should be cleaned regularly or disinfected with bleaching powder.

2. How to raise grass carp

Don't raise it.

Let’s eat it during the New Year

3. How to raise grass carp

The water in the pond should be fertile, the fish density should be reasonable, and attention should be paid to timely oxygenation.

4. High-density breeding technology of grass carp

5 Temple Ponds, with a water depth of 5 meters, can be injected with clean water for a long time. How many grass carps can be raised at such a high density?

5. How to raise grass carp carefully?

The three diseases of grass carp have genetic causes. Viruses cannot kill them. As long as they are controlled and do not break out, the so-called shrimp soldiers and crabs will crawl ashore! I personally feel that there are two main problems with the cultivation of grass carp weighing 300 grams and 500 grams. One is that the quality of grass carp feed produced by most manufacturers is not up to standard. The other is that the feeding rate should be reduced by two-thirds in the hot season. Don't think that grass carp cultivation is so complicated. The grass carp production here is basically more than 3,000 kilograms. Many people buy cars and houses by raising grass carp.

6. How to make grass carp grow fastest?

Grass carp brittle breeding mainly changes the food structure of grass carp to make its meat brittle. The brittle grass carp is called "crispy meat grass carp" (in Guangdong and Guangxi, grass carp is called grass carp, editor's note). Its meat is firm and crisp, not easy to break when boiled, and not easy to break even after being cut into fish fillets or fish strips. Instead, the meat tastes more delicious and unique, which can meet the special taste requirements of consumers and improve the market competitiveness and breeding efficiency of grass carp. So, how can we breed crisp meat grass carp? 1. Breeding conditions. Grass carp brittle breeding can be carried out in ponds or cages. Pond requirements: less silt at the bottom of the pond, sufficient water source, good water quality without pollution, convenient water inlet and outlet, an area of ​​1,330 to 2,000 square meters, a water depth of about 2 meters, and the pond should be thoroughly cleaned according to routine requirements before stocking. The cage can be set up in the leeward and sunny places of lakes, reservoirs, and rivers. Water body requirements: no pollution, rich dissolved oxygen, 4 to 7 meters deep, flat bottom and no aquatic plants. A fully enclosed net cage is used, with specifications of 5m x 4m x 2.5m and a mesh size of 0.05m. A 30-mesh gauze cloth is placed at the bottom of the net cage as a feeding platform to prevent feed loss. New net cages should be put into water 7 to 10 days in advance to soften the cage pieces to prevent scratches on the fish body; used net cages should be cleaned and soaked in a 5% quicklime solution for 30 minutes. 2. Stocking of fish. Grass carp with a healthy physique, no injuries or diseases, and an average tail weight of 0.5 kg are selected as fish fingerlings. The stocking amount in the pond is 150 to 250 kg/mu and the stocking amount in the net cage is 15 to 20 kg/m2. In order to regulate water quality, 50 to 60 silver carp and bighead carp with a body length of 0.13 to 0.15 meters can be stocked per mu of pond, and 1 to 2 silver carp and bighead carp with a body length of 0.13 to 0.15 meters can be stocked per square meter of net cage. Before stocking, it is best to give grass carp an immunization injection. If this is not possible, the fish can be immersed in 4% saline solution for 5 to 10 minutes.