CATDOLL : CATDOLL: How many fish can be raised in 15 mu of water with silver carp as the main species?

1. How many fish can be raised with silver carp as the main species in 15 mu of water?

Fifteen mu of water surface can raise silver carp as the main species, and generally 30,000 to 40,000 fish can be raised. The reason is that silver carp is a fish suitable for growing on the water surface. It has strong reproductive capacity, grows rapidly, and its growth conditions are relatively easy to control. At the same time, when raising other fish suitable for growing on the water surface, it is necessary to pay attention to the compatibility between fish species to avoid mutual attacks, predation, and competition that lead to water quality deterioration. It is necessary to strengthen water quality monitoring, adjust water quality in a timely manner, improve the living environment of fish, and ensure the healthy growth of fish.

According to experience, if silver carp is the main species in 15 mu of water, the number of mixed culture should be around 20,000. This is because silver carp is a fish species that is more suitable for mixed culture, and 15 mu of water can provide enough living space and feed resources, so maintaining a mixed culture number of 20,000 is more appropriate. However, the specific number of mixed culture needs to be determined based on factors such as water quality and oxygen. It is recommended to ask professionals to conduct specific investigations and consultations before breeding.

According to the experience of fishery experts, the amount of fish that can be mixed-breeding in 10 acres of water depends on many factors, such as planting pattern, fish species selection, stocking amount and breeding environment. If silver carp is the main species, you can try to breed 2,000-2,500 fish, with a breeding density of about 100-167 fish per acre, depending on the fish species mixed and the cleaning method of the tank bottom and wall. However, according to the actual situation of fish farming, the number of fish should be increased or decreased appropriately. At all times, attention should be paid to the health status and dietary needs of the fish, water quality should be checked regularly, and fish disease prevention and control should be carried out in a timely manner to ensure the breeding benefits and minimize the risk of fish mortality.

The answer to this question requires more specific information, such as: the depth of the 15-mu water surface, the water quality, weather conditions, temperature and other factors, because the number of fish that can be raised under different conditions is different. However, in general, according to the principle of no more than 1,000 catties of fish per acre of water surface, 15 mu of water surface can raise about 15,000 catties of fish. Of course, if mixed breeding is to be carried out, the fish needs to be selected according to factors such as water quality and climate to reduce problems such as cell proliferation caused by excessive numbers of one type of fish.

It is difficult to give a specific answer based on the information you provided. Because the amount of polyculture in the fish pond needs to consider multiple factors, such as water quality, water depth, water area, fish species, feed, etc. In addition, the growth rate and stocking density of silver carp will also affect the calculation of polyculture. In order to ensure that the fish in the fish pond can grow healthily, you can consult professional breeders or aquaculture experts to carry out reasonable breeding according to the actual situation.

2. How to improve the effect of fertilizer and water during silver carp breeding?

1. The complex fertilizer and water market

Looking at the fertilizer products on the market, it is dazzling, but the fertilizer effects are uneven. The majority of users generally only look at the packaging, compare prices, and listen to what people say, which often confuses people's eyes. It is difficult for everyone to distinguish the true from the false about "fertilizer champion", "king of fertilizer", "biological fertilizer", etc. Most people think that "dense green water" and "emerald green water" are good water. This kind of water quality is mainly composed of green algae. However, few people pay attention to the phenomenon that this kind of water quality has a short fertilizer effect time and is easy to overturn algae. Today I want to introduce to you a kind of "yellow-green water", which mainly cultivates ecological balance fertilizers mainly composed of green algae and diatoms. Its fertilizer effect lasts long, the growth of silver carp is obvious, and it is not easy to overturn algae. It can truly be called the champion of fertilizer-algae source element.

2. Continuous tracking process of the effect of "Algae-Depleting Agent"

After fertilizing the water, the water color of the pond is "rich", "lively", "tender" and "refreshing" in the morning, noon and evening. According to the user's fertilizer application time, use Algae Source once every 10 days, and the water fertility can be sustained! The fertility time of Algae Source is amazing!

3. Weigh it and see, Algae Source is the most cost-effective

1. Comparison of specifications of silver carp fishing nets

The stocking specifications of Haida farmer A (6 heads per pound) and nearby farmer B (7 heads per pound) are almost comparable. Through analysis, it is not difficult to see that the cost of Algae Source is only about 200 yuan higher than other biological fertilizers, but the cost of silver carp per pound is almost 100% lower, which reflects the high cost performance of Algae Source Silver Carp.

2. Comparison between body surface and internal organs

Through surface observation and internal organ dissection, we concluded that: 1. In the ponds fertilized with algae-derived fertilizer, silver carp had good body color, wide body and thick caudal peduncle, while fish in ponds fertilized with other biological fertilizers were thin, had poor physique and were prone to hemorrhage; 2. Another criterion for the good growth of silver carp is to look at the internal organs. The intestines are full of food and there is white fat attached to the mesentery. It can be clearly seen that fish using algae-derived fertilizers are fatter.

4. Summary of the Effects of Algae Source

1. Low temperature: fertilizer and water will take effect quickly in 3 days; high temperature: fertilizer will take effect well in 1 day and fertilizer will be kept for a long time in 10 days;

2. Fresh and tender water for breakfast, lunch and dinner, silver carp will be full at every meal;

3. The algae source is packaged in a small size, with a pack of 10 mu and small physical strength;

4. Weigh it and count it like a spring sock. One pound of long fish is the most cost-effective;

5. There is no algae in the yellow-green water, the water is stable, oxygen is sufficient, and the food intake is vigorous.

The first is to apply chemical fertilizers. This method is the simplest method, but the disadvantage is that the fertilizer effect is short. Chemical fertilizers are generally nitrogen fertilizers, supplemented by phosphorus fertilizers and potassium fertilizers. For one fertilization, about 5 kg of effective nitrogen is required per mu. Calculated based on urea with a nitrogen content of about 40%. Then about 12 kg of urea needs to be applied per mu.

Silver carp and bighead carp are filter-feeding fish that we often see. Although they also eat artificially fed bait under artificial feeding conditions, their growth rate, disease resistance, and fish meat quality are completely different after eating artificial feed or natural bait. To put it simply, after eating natural bait, silver carp not only grows faster, has stronger disease resistance, but also produces better fish meat quality.

Fertilizers used. The best ones are those with high organic matter content, preferably organic fertilizers based on fermented chicken manure, and amino acid fertilizers with succinic acid as the main component. Ponds that use mainly chemical fertilizers provide fish with an ecological environment with high dissolved oxygen, low oxygen consumption, and abundant food.

3. How many silver carp should be stocked per acre of water? What should be paid attention to?

Silver carp is a filter-feeding fish that usually lives in the top layer of water bodies. It mainly filters zooplankton in the water for food, especially phytoplankton. It has a relatively low oxygen tolerance, and when the water body is low in oxygen, silver carp will generally hide from the water surface more than other fish species. Therefore, raising silver carp in some ponds can also be used as a simple indicator to judge whether the water body is low in oxygen. Ponds with silver carp as the main fish species can also raise silver carp in large quantities, because silver carp is also a filter-feeding fish.

If silver carp is raised as a companion fish in a shrimp pond, its main purpose is to purify the water quality and serve as a reference for whether the water body is deficient in oxygen. The amount of silver carp per mu does not need to be too much, and it is not allowed to be too much, otherwise it will compete with lobsters for O2. Therefore, in this case, about 20 silver carp per mu will be enough. Silver carp and bighead carp are both fish that live in the middle and upper layers of the water. They are omnivorous and filter some microorganisms in the water that are difficult to see with the naked eye. They are mainly microorganisms. The source of bait is mainly converted from water fertilizer.

First, we need to understand the water level, bait, fertilizer sources, fishing frequency and other conditions to determine the number of stocks. At the same time, it is best to stock large-sized fish, because large-sized fish grow significantly faster than small-sized fish. The fish should be at least 15 cm long and weigh more than 50 grams per fish. They should also be stocked in ponds that have been cleaned, disinfected and fertilized before the spring equinox. If they are stocked after spring, the fish will have a short stabilization period in the new pond and will have an extreme reaction to the environment and die. They are also easily infected with fish diseases, resulting in insufficient seedlings and affecting the production in the later stage.

It is a good choice to raise catfish alone, raise them together with the four major carps, or raise them together with any one or two of the four major carps. Because the four major carps are scattered in different water barriers, raising them together can save water space, expand the production of the company's river surface, and increase economic benefits. It can also make flexible use of nutrients, that is, the excrement of different fish becomes the bait of another fish, saving food and increasing economic benefits. It is not until the bait is converted into useless waste that the nutrients of the bait food are fully utilized, the conversion rate of the bait is improved, and the economic benefits are increased.

At least 150,000 fish should be released. Attention should be paid to density, cleaning the mud at the bottom of the pond, using quicklime for disinfection, using clean water, and keeping the environment clean.

150,000 silver carp should be released; pay attention to the temperature, the water area must be deeper, and the water hygiene must be good.

About 150,000. Be sure to consider the water quality, pay attention to the use of fertilizers, try to use some easily absorbed fertilizers, and also pay attention to regular water changes.