Silver carp is raised in captivity, what should I pay attention to when farming silver carp in fresh

Silver carp are bred in captivity, and freshwater rearing silver carp requires attention to time. Silver carp mainly refers to silver carp and bighead carp (also known as white fish). Almost all silver carp use mayflies as their main filter feeding objects, and silver carp use mayflies as their main filter feeding plants, such as algae, and their gill rakers are relatively dense.

Silver carp feeds mainly on mayflies, and its gill rakers are loosely structured. Therefore, from the perspective of eating habits, artificially farmed silver carp and bighead carp do not eat feed to grow, and there is not much difference. Comparatively speaking, farmed water tends to be fatter, and silver carp and bighead carp grow faster, but I personally feel that the taste is similar to that of game.

Carp is an omnivorous fish, under natural conditions, mainly feed on aquatic plants, organic matter, organic debris, etc., and the growth rate is relatively slow, and it generally takes 2-3 years to grow to about 1 kg of marketed size. Artificial breeding is generally put into feed, the growth rate is fast, and the fry can be marketed in about 1 year. Of course, farmed carp taste much worse than wild ones.

It is mainly manifested in the loose meat quality, earthy smell, and the fish meat is very fatty and has a high fat content. When we buy in the market, we can't use the difference in taste, so how can we distinguish it from the appearance? Grasp two points:.

Bait in natural waters is much less abundant than in farmed ponds, so wild carp are usually not very fat, slender and lean.

Due to the long growth cycle of wild carp, the color is relatively rich due to the long-term natural water conditions. Therefore, most of the blue and yellow body color are wild, while most of the white and poor luster are aquaculture. It is really difficult to judge the artificial breeding and wild breeding of silver carp and carp, such as whether the fish pond is fed wild or aquacultured, if it is pure silver carp and carp in the river is very few, and there is basically no one sold in the general vegetable market.

Silver carp generally refers to silver carp and bighead carp, silver carp mainly eats plankton algae, while bighead carp mainly eats plankton microorganisms. Fish in rivers and lakes are generally thinner, especially bighead carp, which has a larger head and a thinner body.

If you have experience, you can take your head and nose to the fish's mouth and smell it for the smell of silt or waste oil. At present, many fish ponds are polluted and smell of waste oil. No Waste Oil In general, there is not much difference in taste between farmed and wild ones.

At present, if silver carp and tilapia are polycultured, the easiest way is to look at the ratio of fish head to fish body, the fish head in the pond is very small, the flesh of the fish belly is very thick, it looks like the weight of the fish is very large, after cutting the fish belly, you can see that there is oil stain in it. In some wet markets, many people say that their fish are wild and very high. There's no need to believe too much.

In fact, they are not really wild.

Raise silver carp. The feed required is mainly divided into the following types:

Phytoplankton: This has always been a favorite and staple food of silver carp, a variety of algae in the water body.

Silver carp will be filter-fed and eaten, but because of the digestive system.

On some of the reasons, those that are completely closed by cellulose, pectinous cells, and have chitin.

The zooplankton in their shells cannot be digested and absorbed by the silver carp, and these organisms are excreted with their feces after eating.

Zooplankton: When there are not enough phytoplankton, or when there are too many zooplankton, silver carp can also filter feed some smaller zooplankton. It is precisely because of the above two reasons, if the water quality must be fertilized during artificial breeding, so that the yield can come up, of course, you can also use this point, you can match it with other fish stocking, which can play a role in water transfer.

Organic crumbs: In the natural environment, silver carp sometimes eat some organic crumbs at the bottom of the pond and some bacterial agglomerates with larger particles.

Artificial bait: Under artificial feeding, sometimes some artificial bait will be fed when the natural bait does not come up, and rice bran is commonly used.

Wheat bran, soybean cake, tofu residue and the like like to eat, of course, sometimes when feeding this bait down, it is not necessarily necessary to eat all the fish, this can also be used to fertilize water, through the fertilizer water to cultivate plankton in the water body.

The silver carp is one of the four major fish, the biological name is bighead carp, commonly known as silver carp, big-headed fish, fat head, etc., and its fish is famous for its large fish head. However, this kind of fish mainly eats zooplankton in the water body, so the water body in which it lives is generally relatively fat, for the fish bred in this water body, it is best to put it in clean water for a few days and let it drain the internal organs in the stomach before eating, so that the taste will be much fresher, and there is not so heavy fishy smell. So how do you raise tarpon to live a little longer after you get home?

This depends on your personal conditions.

<> tarpon can survive normally in natural water bodies, why is it not easy to feed at home, because tap water is usually used at home, there are no plankton algae in the water, etc., if the artificial ecological environment that belongs to it comes out, it can live for a long time, such as with pond water, there are plankton in it, and then plant some aquatic plants.

In addition to the water quality required by the general fish is convenient and pollution-free, because the silver carp is mainly filter-feeded, mainly to filter feed various zooplankton in the water body, and sometimes eat some small organic crushed cakes, so the water body used to breed silver carp must be fertilized, and only the fertility of the water body can ensure its yield and reduce the breeding of adults (the feeding of artificial bait can be reduced in the water body rich in bait). If the pH of the aquaculture water is slightly alkaline, it is more beneficial for the growth of fish.

How to make the water quality more fertile without affecting the oxygen content in the water, first of all, there are more substances to increase the fertilizer in the water quality, and the most direct is to put chemical fertilizers, but it is relatively large and low. The second is to buy water quality fertilizer enhancers in a treasure to promote the fertility of water quality. There are two ways of monoculture and polyculture, and polyculture is to keep it together with other species of fish, so that the whole ecosystem in the pond can be balanced.

Monoculture is to directly feed seedlings, and there is no need to mix with other seedlings.

Chemical fertilizers that are more nutrient-rich should be used, as this is the only way to better promote the growth of fish stocks.

Generally in May and June, avoid the peak season of the wheel insect to go down to the pond. The stocking method generally adopts polyculture, which can give full play to the utilization rate of water bodies and the economical use of food. A small amount of silver carp and carp can be mixed cultured.

In the case of breeding, the best way is to pay attention to the temperature and seasonality, and then we should pay attention to how to disinfect and use drugs throughout the whole process of raising it is very important.

First of all, it depends on the weather and water temperature: I personally think that the critical water temperature of silver carp is 16 degrees Celsius, below 16 degrees Celsius, silver carp and silver carp die for a lifetime, the water temperature is 16 18 degrees Celsius is also very auspicious, even if they are lucky enough to survive, they are very slow, and then they will die because of lack of food, and the final survival rate is generally not high, it is not recommended to rush to success, stocking fish fry has two ways of winter and spring, winter stocking is after the fish pond fishing is completed, the original fish pond is cleaned up and renovated after the detoxification work is completed, After a period of time, the fry are stocked, when the temperature is colder, the fry enter the fasting period, and the stocking fry can safely survive the winter. The other is to start stocking fish fry in March after the beginning of spring, <>

Silver carp grow faster than silver carp and can often be found in natural rivers and lakes and other water bodies with an individual size of more than 10 kilograms. It is suitable for breeding in fertile ponds. The time of putting fish fry should be well planned, the time period of putting silver carp can choose April and October two seasons, these two seasons are the most helpful for the early growth of silver carp, the number of silver carp should be gradually reduced each time, and the male and female ratio of soft-shelled turtle should be controlled, the number of silver carp per mu can be controlled at about 1,000, <>

Silver carp mainly refers to freshwater silver carp and bighead carp (also known as silver carp). Almost all silver carp are mainly filter-feeding mayfly organisms, among which silver carp mainly filter-feed mayfly plants such as algae, and its gill rakers are relatively dense; The tarpon mainly filter-feeds mayflies, and its gill raker structure is loose. Now there are no wild fish to sell in the market, and if there are some deceptive nonsense, I am telling the truth, in our rural areas, whether it is a large reservoir area or a collective pond, there are people who have contracted it, and from the large reservoir area to the small pond, all fish are raised.

The water bodies are turbid and black, mainly due to the water quality corruption caused by long-term flavored feed.

It is really difficult to judge the artificial breeding and wild breeding of silver carp and carp, such as fish pond without feeding is considered wild or aquacultured, if there are very few silver carp and carp in the simple river, the general vegetable market basically does not sell.

The survival rate of silver carp through artificial breeding is about 80%, and the survival rate is still very impressive, as long as it can be farmed, the mortality rate is not high.

Under the condition that the artificial breeding method is correct and the breeding environment is suitable, the survival rate is about 70%.

It is relatively easy to raise, and the probability of survival is about 90% or more. However, it is important to control the density and be sure to feed some nutritious feed.

There should be a probability of about 80% in the future, and the general artificial breeding environment will create a more favorable environment and be able to grow more easily.

One acre of fish pond to raise silver carp, technology standardization. If it is mainly raised with silver carp, the yield per mu is about 300-400 catties. If it is mixed reasonably, the yield per mu is about 80-100 catties.

The silver carp is one of the four major fish. Many farmer friends keep this fish in ponds, usually during the Chinese New Year holiday**. What is a reasonable density for silver carp to reproduce live fish? What are the breeding techniques?

1. Reasonable breeding density of silver carp live fish.

Generally speaking, if the production of silver carp is high, it is necessary to calculate a reasonable breeding density according to the yield per acre. If it is estimated that the yield per mu is 600 catties, and the market size is about 3 catties, it will be stocked according to 250 acres, and the number of stocking shall not exceed 300 acres.

2. Silver carp live fish.

1.Seed selection.

The broodstock of silver carp need to choose natural species, which requires good health and good gonadal development. Silver carp is more than 6 kg, bighead carp is more than 10 kg, herring is more than 15 kg, and grass carp is more than 8 kg. The annual renewal rate of broodstock should reach about 10%.

2.Clean up the pool.

Broodstock ponds should be easy to irrigate and drain. The bottom of the pond should be 20 cm deep silt, while the bottom of the pond should contain little or no silt. The area is 1-5 acres, the water depth is about meters, and the pond should be cleaned before stocking.

3. Bring stockings.

The male-to-female ratio of silver carp, bighead carp and grass broodstock is generally 1:1 At the same time, 8 10 silver carp and about 150 silver carp are stocked per mu to control the reproduction of wild fish and large zooplankton.

4.Feeding management.

Before stocking, 500 700 kg of well-rotted organic fertilizer was put into the silver carp and bighead carp brood ponds to cultivate plankton, and appropriate fertilization was applied later. In addition, in sunny and warm weather, soybean cake pulp should be fed to promote gonadal development.

5.Miscarriage at an early age.

Females can induce oxytocin by enlarging their abdomen and relaxing their reproductive pores. Generally, females are injected with oxytocin chorionic gonadotropin 1000 IU per kilogram of body weight, or 50 micrograms of LRH A40, and males are halved.

6. Incubation management.

The hatchery water should be filtered with a strainer to prevent floating debris and wild fish from entering. Before each incubation, the incubation tank and the incubation tank should be cleaned. Proper water flow should be provided during incubation. The water should be turned frequently to check the bottom corner for egg accumulation to maintain the water quality.

In the above small series, I told you about the reasonable density of silver carp live fish farming, and friends who plan to make money from breeding can remember. In addition, some live silver carp fish were also shared, hoping to help everyone.

1. Pond conditions, the pond requires sufficient water sources, no harmful substances, convenient drainage and irrigation, flat and solid bottom of the pond, silt thickness less than 15 cm, and solid ridge without loopholes. The ridge of the pool is more than 40 cm above the water surface, and the water inlet and drainage outlet are set up to prevent escape. Putting water lotus or duckweed on the surface of the pond can not only provide shade, but also purify the water quality and serve as auxiliary feed.

Before the fingerlings are put into the pond, the pond must be dried, cleaned and disinfected, and the basal fertilizer must be fertilized, and new water must be injected, and the fingerlings can only be released when the reproduction of feed organisms in the pond water reaches its peak. The pond area is generally 600-2000 square meters, and the water depth is meters. 2. Fingerlings stocking, stocking fingerlings are consistent with the specifications, stocking density depends on the size of the fingerlings and ponds, feed, water conditions, generally 5-10 fingerlings of about 10 cm per square meter.

The stocking of large-sized fingerlings increases survival rates and production. The size of the fish fingerlings in the lower pond should not be less than 5 cm.

Environmental requirements for silver carp live fish farming: water quality, pond size. The water used for the breeding of silver carp live fish should be sufficient, free of harmful substances, and convenient for drainage and irrigation.

The bottom of the pond for fish farming should be flat and solid, the thickness of the sediment should be less than 15 cm, the ridge of the pond should be solid and without loopholes, and the water surface should be filled with water lotus or duckweed, which can be shaded and purify water quality and used as auxiliary feed.