What are some practical tips for pond farming of crucian carp?

When it comes to crucian carp, I think everyone is very familiar with it. In daily life, everyone should eat crucian carp. The nutritional value of crucian carp is very high. Especially for some children, eating crucian carp is very effective for nourishing the brain.

Some tips for pond farming of crucian carp

1. Stocking density: For pond rearing of crucian carp fingerlings, stock 8000-12000 summer fry of crucian carp per mu, and fingerlings with a size of 50-60 grams can be grown. For pond farming of adult crucian carp, stock 1500-1800 crucian carp fingerlings per mu, with an average size of 50-60 grams per fish, and adult fish with a size of 350-400 grams can be grown.

2. Species combination: The number of silver carp and bighead carp should account for about 10% of the number of crucian carp being farmed. Stocking silver carp and bighead carp too early will affect the domestication of crucian carp. The best stocking time should be after the habit of crucian carp rising to the surface to compete for food has formed. Grass carp and common carp have a short time for rising to the surface to compete for food and are fierce in competing for food. They will not only affect the domestication of crucian carp, but also affect the year-round feeding of crucian carp. Therefore, stocking common carp and grass carp is prohibited in ponds where crucian carp are the main species.

3. Domestication: Adding an appropriate amount of phagostimulant (such as feeding-stimulating peptide) to the feed can shorten the domestication time and increase the feeding area and amount for crucian carp. Matching with bream, which has a mouth size and food-competing speed comparable to crucian carp, can improve the success rate of domestication and shorten the domestication time. When the stocking density of crucian carp is high and the population is large, domestication is easier. /4. Feed use: When the body weight is 50-100 grams, use crucian carp fingerling feed; when the body weight is 100-200 grams, use crucian carp small-fish feed; when the body weight is above 200 grams, use crucian carp adult-fish feed. This can not only maintain the normal body shape of crucian carp, but also reduce the feed conversion ratio and ensure the commercial size of the adult fish.

The living habits of crucian carp  

Crucian carp is a broadly adaptable fish. It can live in deep water, shallow water, clear water, turbid water, flowing water, still water, large water bodies, and small water bodies. It likes to inhabit shallow river bays and lake coastal waters where aquatic plants grow densely. It has strong vitality and can even grow and reproduce in adverse water bodies with low oxygen and relatively high alkalinity. It is an omnivorous fish.  

The feeding time of crucian carp varies with the season. Spring is the peak feeding season, and it feeds continuously day and night. In summer, the feeding time is in the morning, evening, and at night. In autumn, it feeds all day. In winter, it feeds around noon. It likes to move in groups, sometimes with the current and sometimes against it, going to shallow shoals with abundant aquatic plants, river bays, ditches, and reed beds to seek food and spawn. When it encounters places with slow or still water and abundant bait, it temporarily settles there. 

The nutritional value of crucian carp  

The meat of crucian carp is tender, sweet in taste, and highly nutritious. Its nature and flavor are sweet, neutral, and warm, and it enters the stomach and kidney. It has the effects of harmonizing the middle and tonifying deficiency, removing dampness and promoting urination, tonifying deficiency and winning, warming the stomach and promoting eating, and tonifying the middle and generating qi. In particular, blanched soup made from live crucian carp has effects in promoting lactation that other medicines cannot compare with. Crucian carp blanched with winter melon, and crucian carp stewed with radish, are not only delicious but can also eliminate disease and prolong life.  

1. Enhance disease resistance: The protein contained in crucian carp is high quality, complete, and easy to digest and absorb. It is a good protein source for people with liver and kidney diseases and cardiovascular and cerebrovascular diseases. Regular consumption can enhance disease resistance and prevent and treat hypertension, arteriosclerosis, and coronary heart disease. It is an excellent food ingredient for patients with liver diseases, kidney diseases, chronic bronchitis, and other diseases. Regular consumption can supplement nutrition and enhance disease resistance. It also has therapeutic effects on preventing and treating arteriosclerosis and hypertension.  

2. Promote lactation and increase milk: Crucian carp has the effect of promoting milk secretion. Folk custom often gives postpartum women stewed crucian carp soup, which can both tonify deficiency and promote lactation and increase milk. Especially for people who are weak after childbirth, surgery, or illness, eating crucian carp regularly is beneficial for physical recovery.  

3. Beauty and anti-wrinkle: Crucian carp contains little fat, so it tastes fresh and tender without being greasy. It is very suitable for women who want to be beautiful but are afraid of greasiness. Crucian carp contains comprehensive and high-quality protein, which can play a good role in strengthening the elastic fiber structure of the skin.  

4. Improve eyesight and intelligence: Crucian carp roe can tonify the liver and nourish the eyes, and crucian carp gall has the effect of strengthening the brain and improving intelligence.

Pond conditions for farming crucian carp  

1. Pond environment: The pond area is generally preferably 5-10 mu, the water depth is 1.5-2.5 m, the water quality is good, the water source is abundant, water intake and drainage are convenient, and there is no pollution. The pond bottom should be flat and relatively hard. Generally, the thickness of silt should preferably not exceed 20 cm, and the pond embankment should be solid and not leak water.  

2. Pond clearing and water fertilizing: Remove debris and silt from the pond bottom. There are 2 methods: the dry pond method and the water-retaining method.  

① Dry pond method: Use 60-75 kg of quicklime per mu, retain 8-10 cm of water in the pond, and mix the pond bottom silt and lime slurry evenly.  

② Water-retaining method: With a water depth of about 50 cm per mu, use 100-125 kg of quicklime, and splash the lime slurry evenly over the whole pond. After disinfection, fish fingerlings can generally be stocked after 7-10 days. After 5-6 days, inject water into the pond to a depth of 1.5-2.0 m. At the same time, apply 100-150 kg of decomposed mixed fertilizer of chicken, duck, and other animal manure, and cultivate the water to tender green or tea brown, with a transparency of about 35 cm.

Crucian carp farming is relatively well developed among all aquaculture industries in our country, because the investment cost of farming crucian carp is relatively low, and crucian carp is also one of the fish that people like to eat most and eat most often in our lives. Therefore, its market demand is very large.