CATDOLL : CATDOLL: How to raise crucian carp?

1. How to raise crucian carp?

To raise crucian carp fry, you need to prepare a pond. After cleaning and disinfecting the pond to ensure environmental hygiene, start filling water and putting in the fry. The stocking density is determined according to the size of the fry. After putting in, you need to apply fertilizer appropriately, keep the water color brown-green, and the transparency is about 20 cm, and inject new water in time. In daily management, you need to feed rotifers in the early stage, and then you can use peanut bran, soybean meal, etc. as feed, and feed 2-3 times a day. 1. Breeding conditions

Cultured flowers like to live in relatively clean and flowing water sources, which are more common in rivers, lakes and ponds. Cultured flowers do not have the habit of drilling mud holes, so in the process of cultured flowers, it is necessary to pay attention to the silt in the breeding pond not to be too much. The pond area is about 2 to 3 acres, and some sandy soil is laid on the bottom of the pond. The water depth is kept above 1.5 meters, and it is built in a place with convenient drainage and irrigation. The water quality of the pond is required to be clear and there is no need for sewage to flow in. When building a pond, it is necessary to plant some aquatic plants, which can improve the nature of the water and provide natural bait for cultured flowers. It is also necessary to determine the soil. It is not easy to create acidic breeding conditions, which is not suitable for the survival of flower crucian carp. It should be bred with neutral water quality.

2. Disinfection

Before preparing to raise flower crucian carp, you need to disinfect the pond, remove all the silt in the pond, then dilute 500 kg of quicklime and sprinkle it evenly in the pond, then apply fertilizer before April 10th to increase the fertility of the water. After doing these things, inject about one meter of well water into the pond to cultivate water quality and cultivate natural bait for flower crucian carp.

3. Feeding

The best time to breed crucian carp is around mid-April. The fry need to be placed in the pond for breeding. The density of fry should be controlled at about 400,000 per mu. They can be placed in two batches. Do not put the same batch in on the same day. You need to put in a batch every other day. This way, you can take into account the different sizes of fry and all get the appropriate bait. If the size of the stocked crucian carp is about two centimeters, the size of the fish feed can be controlled at about 1.2 centimeters. Control the size of the feed according to the size of the crucian carp.

4. Water quality requirements

Within 20 hours before stocking the crucian carp, you need to inject ten centimeters of water into the pond, and then replace about 1/3 of the water concentration. And add about two kilograms of feed fish, so that the crucian carp can be fed in time. When stocking, you need to pay attention to changes in water quality and external temperature. The temperature difference between the water and the previous temporary water should not exceed five degrees. When the water quality is turbid, you should change the water in time, and the amount of water changed each time is about 1/3.

5. Bait management

It is necessary to add bait according to the growth of crucian carp, preferably once every three days. The density of bait fish in the pond must be maintained. When the fry of crucian carp grows to three centimeters, 500 grams of commercial fish need to be added, and about three kilograms of bait fish need to be consumed. In this way, the crucian carp can have sufficient food, improve the growth of crucian carp and the conversion of feed.

6. Water quality management

During the breeding process, it is necessary to check the pond in the morning and evening, and observe the feeding and growth of the flower crucian carp. It is also necessary to check whether the water quality is polluted and keep it clean. To have good water quality, it is necessary to inject oxygen to make the oxygen content in the water more than 5 mg. Change the water once a week, and if the water quality becomes concentrated, it is necessary to deal with the excrement in the water in time. Especially in the hot summer, it is necessary to turn on the aerator every day for oxygenation, or in the rainy season, it is easy to cause the water in the pond to be lack of oxygen. Oxygenation can be carried out at 4 am. In order to avoid the water quality being too turbid, certain water plants can be cultivated in the water, which can purify the water quality and is more conducive to the healthy growth of flower crucian carp.

7. Prevent floating head

When the flower crucian carp grows to adult fish, the water needs to be deepened by two meters, and the pH value of the water needs to be adjusted to a slightly acidic state of 6.8 to 7.0, the dissolved oxygen content needs to be maintained above 5 mg, and the concentration of ammonia nitrogen and hydrogen sulfide in the water needs to be guaranteed, because adult flower crucian carp has very high requirements for oxygen in the water. If the oxygen is low, it is particularly easy for the flower crucian carp to float, and once it floats too much, the immunity of the crucian carp will be reduced, which is very likely to lead to pathological reactions, and finally reduce the output value, causing great losses. Therefore, a pond of about one mu should be equipped with an aerator of about 3,000 watts to prevent the flower crucian carp from floating.

2. How long does it take for a newly born crucian carp seedling to grow to 1 cm?

Generally speaking, crucian carp takes 6-7 months to grow up. Wild crucian carp grow slowly and take a long time to grow up. It takes about a year and a half to grow to 200 grams. To grow to more than 1 catty, it takes at least 5-10 years.

Artificially cultivated crucian carp grows faster and can reach more than 200 grams in about half a year. Usually, crucian carp weighing 200 grams can be put on the market, so even if it grows up, it can grow 1 cm in about half a month.

Crucian carp can grow about 1 cm in 12 days. The newly hatched crucian carp grows relatively fast, and can basically reach 2 cm from head to tail in ten days. But the key to growth is that the density should not be too large. If the density is too high, the fish will have less space to swim and will not grow very fast.

Second, the nutrition should be supplied in place, and soy milk or egg yolk water should be used to feed 3 to 4 times a day, and the amount should be fixed regularly.

It can grow 1 cm in about half a month.

3. Which one is better for crucian carp fry, Zhongke No. 3 or Zhongke No. 5?

The crucian carp seedlings Zhongke No. 3 and Zhongke No. 5 are both varieties bred by the same company. Each has its own advantages and disadvantages and is suitable for different regions and water quality. Choose according to your actual situation.

4. How big do crucian carp fry grow in a year?

This depends on the species of the fry. If it is native crucian carp, it would be good if it could grow 50 grams a year in the wild. If it is farmed, it can generally grow to about 100 grams.

If it is an artificially bred and improved variety, such as Xiangyun crucian carp (engineering crucian carp), Gaobei crucian carp, Pengze crucian carp, etc., under sufficient conditions, it can generally grow to about half a catty in the wild or in breeding.

5. How big does a crucian carp need to be to eat duckweed in the water?

When they grow to 2 to 3 centimeters, they can eat duckweed in the water.

2 to 3 cm crucian carp fry eat earthworms, sedges, duckweed, aquatic insects, plankton and fresh water plants. Note that 2 to 3 cm crucian carp fry have small mouths and cannot be fed with coarse and hard grass, otherwise they will not be able to swallow and digest. The feeding time of crucian carp varies according to the season. Spring is the peak feeding season, and they eat continuously day and night.

Edible value and efficacy of crucian carp:

It can beautify the skin and fight wrinkles, and delay aging; it can improve human memory; eating it helps increase milk production for pregnant women; it is very beneficial to the liver; it lowers cholesterol and can prevent high blood pressure and cardiovascular diseases; it promotes growth and development in children; and it can treat chronic bronchitis.

Taboos of crucian carp: eating crucian carp during a cold will aggravate the condition; it is not advisable to drink tea after eating crucian carp. It can make the body recover faster and is conducive to the secretion of milk. Crucian carp soup has the effect of clearing the meridians. Secondly, crucian carp is rich in protein. This high protein can also make women's skin more elastic and smooth, so you can also drink some crucian carp soup appropriately at ordinary times, which can also beautify.