Experience in breeding silver carp

Silver carp is more popular in the market, especially using the head of silver carp to make hot pot or stew, which is the favorite of many people, so the market demand of silver carp is beyond doubt, so if farmers want to succeed in silver carp culture, successful experience is essential.

Some experiences in culturing silver carp

1. Preparation before stocking: the area of the fish pond is required to be larger, generally 4Mel 8 mu, and the water should be deeper, generally 1.5-2 meters. Organic fertilizer should be applied to culture before stocking, and proper amount of base fertilizer should be applied to silver carp to control the peak of rotifer in the pond.

2. Summer flower stocking: the stocking time is generally from May to June, and there are monoculture and mixed culture, generally using mixed culture, because at this stage, the habits of fish are gradually different, and the requirements for the external environment are also different. mixed culture is carried out according to the habits and adaptability of all kinds of fish, not only to give all kinds of fish a suitable growth environment. At the same time, it also gives full play to the utilization rate of water body and the more economical utilization of food. There are generally 3 kinds of mixed culture in fish ponds, and a little silver carp and carp are mixed in this experiment.

3. Feeding and management: at this time, silver carp mainly takes plankton as the main food, the pond water is required to be fertile, and the plankton biomass is more. In addition to applying basic fertilizer before stocking, summer flowers should also be applied green manure and cooked manure after stocking, combined with regular injection of new water to keep the water brownish green. During artificial feeding, we should pay attention to the principle of "four determinations", that is, timing, positioning, quality and quantity, in order to improve the utilization rate of bait and reduce the feed coefficient.

4. Daily management: patrol the pond once every morning, observe the dynamics of water color and fish, often eliminate weeds and rotten debris in the water, clean the table and disinfect the table and food. In order to protect the sanitation of the pond; net inspection is not only conducive to fertilizer and water, but also easy to check the growth of fish diseases, so as to reasonably establish the amount of feeding and fish disease prevention and control methods, and do a good job in escape prevention, theft prevention, fish disease prevention and enemy damage prevention.

5. Merging ponds and overwintering: in late autumn and early winter, when the water temperature drops below 10 degrees Celsius and the fish is no longer feeding, fish must be fished out and concentrated in a deeper pond for winter. It is suggested to stop feeding one week before merging the pond, and choose a sunny day to draw the net out of the pond. When pulling the net and operation of the pond, care must be taken to avoid fish injury and water mildew during the overwintering period. The water depth of the storage pond is more than 2 meters, sunny leeward and less sludge. After the pond is merged, the hypoxia should be prevented when freezing, and the harm of waterbirds should be strictly prevented.

The appearance of silver carp

Silver carp, also known as fat-headed fish, big-headed fish, black silver carp, looks like silver carp. The body is flat, the head is large and wide, and the head length is about 1 big 3 of the body length. The mouth is also wide and slightly warped. Low eye position. The branchial foramen is large and the operculum is well developed. The scales are thin and dense. The back is bluish black, the side of the body is dark brown with black or yellow spots, the abdomen is gray, and each fin is light gray. There are horny ventral ribs from the base of the ventral fin to the anus. The pectoral fin is longer and its trailing edge exceeds the ventral fin.

The head of silver carp is large, accounting for 1/3 of the body length, the side of the body is black and spotted, and the eye position is low. Fish brain contains a kind of silver carp oil needed by human body, and fish oil is rich in polyunsaturated fatty acids, which is an essential nutrient for human body, which can maintain, improve and improve brain function. The meat under the fish gills is transparent and gelatinous, with plenty of water and rich in collagen, which can resist aging and repair the body's cells and tissues.

Nutritional value of silver carp

Silver carp has sweet taste and warm nature, which can warm the stomach, tonify deficiency, resolve phlegm and relieve asthma. It is suitable for deficiency and cold of spleen and stomach, excessive phlegm, cough and other symptoms. People with weak constitution had better eat more fish head of silver carp, its warming effect is very good, and it can also play a role in treating tinnitus and dizziness. People with excessive phlegm and dizziness can cook with silver carp and tofu.

Bighead carp has a protective effect on cardiovascular system. Pituitrin, which is rich in phospholipids and improves memory, especially the brain pulp is very high. It can warm the stomach, dispel vertigo, benefit IQ, help memory, delay aging and moisturize the skin.

The prospect of silver carp culture

Silver carp is popular in the market, the key is to have consumption habits to lay the foundation. Silver carp head is used to make delicious fish soup or hot pot, which is a favorite method of Guangdong people. It is also very popular in domestic and foreign markets, and its price is the highest among the "four big fish". Because of the market demand for large-size silver carp, it is now popular to cultivate silver carp.

The following is an example: a fish pond of 7 mu ~ 8 mu raises two silver carp a year. 70 silver carp with 0.75 kg / mu per mu were released from August to September and left the pond from March to April next year, because the silver carp was scarce and the purchase price was higher. At the same time, 60 grass carp with 1 jin weight, 700 mud carp with 1 double weight, 130 crucian carp with 3 double weights, 10 carps with 0.2 double weights, 250 lice per mu and 10 snakeheads per mu were put in each mu.

Using duck manure as a source of fertilizer can cultivate a large number of plankton in the pond and provide enough bait for silver carp to eat. After the duck manure was fermented with a certain amount of quicklime, the duck manure was put in a nylon bag of 15kg ~ 20kg per bag and hung in each mu of pond, the specific amount of which was determined according to the weather and water quality. Other fish should be properly fed with a certain amount of wheat and a certain amount of grass. After the silver carp is produced in March and April, 80 silver carp of 0.75 kg per tail will be released from the pond in August and September, while other miscellaneous fish will come out of the pond before the Spring Festival.

Having mastered the experience of cultivating silver carp, we may encounter other problems in the actual breeding process. We should be flexible and constantly summarize the problems that have not been recorded before, and find a solution to the problems that have not been recorded before. Only in this way can the breeding cause continue to move forward.