CATDOLL : CATDOLL: How many grass carps and black carps can be raised in one acre of fish pond?

How many grass carps and black carps can be raised in one acre of fish pond?

If you are breeding large grass carps weighing more than 1 jin, then it is more appropriate to raise 80-100 per acre. But if you are breeding smaller grass carps weighing about half a jin, you can raise about 300 per acre. In addition, you need to consider the issue of mixed breeding. If you want to raise grass carps with other fish, then the number of breeding can be appropriately reduced. 1. How many grass carps can be raised in one acre of fish pond? There are many fish that can be used as farmed fish in our country, and the scope of breeding them is very large. Grass carp is one of them. When breeding fish, the first problem that needs to be paid attention to is density. The breeding number cannot be too large, otherwise there may be insufficient space and food, and the growth state of the fish will be poor. The same is true when breeding grass carp.

When considering the density of farmed fish, one mu can be used as a unit. It is not certain how many grass carp can be farmed in one mu of fish pond, and it is related to many factors. One of the very important influencing factors is the size of the farmed grass carp. Some farmers choose to farm relatively large grass carp, and their weight can generally reach more than 1 catty. In this case, such grass carp cannot be too dense, and sufficient space must be provided for their growth and development. Generally speaking, 80-100 grass carp can be farmed. Some farmers choose small grass carp as the breeding object, and their weight is generally less than half a catty. At this time, about 300 grass carp can be raised. Some farmers will raise grass carp with other freshwater fish, so the number of grass carp must be reduced as appropriate.

2. How many black carps can be raised in one acre of fish pond? As mentioned above, you need to pay attention to the density when breeding grass carp, and the same is true when breeding black carp. The number of black carps farmed is also closely related to their body size. Under normal circumstances, the number of black carps farmed per acre can be controlled at around 500, depending on the size of the black carps. If the size of the black carps is very large, the number of black carps farmed must be reduced, and they must not be left in a state of very insufficient space. Black carps can also be raised together with other fish, and the number of fish that can be raised can be appropriately reduced when mixed breeding.

Stocking density in fishing grounds

Stocking density in fishing grounds:

The polyculture ratio and density of various fish can be determined based on the supply of fertilizers and baits, polyculture mode, pond conditions and fish species specifications.

In traditional fish farming, the ratio of "water-rich fish" to "food fish" is 6:4; the use of compound feeds can increase the number of "food fish" in mixed culture, and the ratio is generally 4:6. Grass carp is used as the main body to mix silver carp and bighead carp, and the mixed culture ratio is 2:1 or 2:2; grass carp and bighead bream are used as the main body to mix silver carp and bighead carp, and the ratio of grass carp to bighead bream is 1:3 or 1:4, the ratio of grass carp, bighead bream to silver carp and bighead carp is 1:1, and the ratio of silver carp to bighead carp is 4:1 or 5:1 at any time. Among them, the allowable amount of grass carp is 10-15 kg per square meter of water surface; the allowable amount of silver carp is 20-30 kg per 100 square meters of water surface; the maximum allowable amount of bighead carp is 4.5-6.0 kg per 100 square meters of water surface. The ratio of carp as the main fish to other fish is 6:4 or 7:3, and the allowable amount of carp is 90 to 180 per 100 square meters of water. Because carp is very competitive, in ponds where grass carp is the main fish, the carp should be controlled at 25 grams per carp, and the number should not exceed 15 per 100 square meters of water surface. In ponds where black carp is the main fish, the number of bream is generally 30 per 100 square meters of water surface. With crucian carp as the main fish, the allowable amount is 150 to 220; no matter which fish is the main fish, if silver crucian carp and white crucian carp are mixed and raised, the number of white crucian carp with a size of 40 to 50 grams per carp is 30 to 45 per 100 square meters of water surface, and the number of silver crucian carp with a size of 15 to 20 grams per carp is 60 to 90 per 100 square meters of water surface. In addition, tilapia is a very good companion fish species. It is a wintering fish species with a size of 5 to 10 grams, and the number of fish to be matched is generally 45 to 75 per 100 square meters of water surface.

3. Polyculture model

At present, there are mainly the following polyculture modes in pond fish farming in my country:

1. The polyculture model with herbivorous fish as the main fish is to feed herbivorous fish with grass, use the feces of grass carp and bream to fertilize the water, and raise silver carp, bighead carp, etc. This polyculture model is mainly based on aquatic plants and green bait, and some fine bait can be added in appropriate amounts. Since the source of bait is easier to solve, the output and economic benefits are better, this polyculture model is more common in my country.

2. The polyculture model with filter-feeding fish as the main fish is to take silver carp and bighead carp as the main fish, and appropriately mix other fish, especially fish with strong ability to feed on bait debris, such as non-carp and silver carp. This model is mainly based on fertilization, and grass is also fed. Due to the wide source of fertilizer and low cost, this model is the main model for pond fish farming in many areas of my country.

3. The polyculture model with omnivorous fish as the main fish is based on carp or crucian carp. The former is more common in the north, and the latter is more common in the south. The breeding type with carp as the main fish is mainly concentrated feed, and the breeding cost is relatively high; the breeding type with crucian carp as the main fish is mainly fertilized, and the breeding cost is relatively low.

4. Polyculture model with carnivorous fish as the main fish. The main fish in this polyculture model is black carp. Due to the limited natural resources of snails and clams, and the lack of black carp pellet bait, this breeding model is rare.

Stocking density in fishing grounds:

The proportion, state and density of various fish species can be determined according to the supply of fertilizers and baits, polyculture mode, pond conditions and fish species specifications.

In traditional fish farming, the ratio of "water-rich fish" to "food fish" is 6:4; the use of compound feeds can increase the number of "food fish" in mixed culture, and the ratio is generally 4:6. Grass carp is used as the main body to mix silver carp and bighead carp, and the mixed culture ratio is 2:1 or 2:2; grass carp and bighead bream are used as the main body to mix silver carp and bighead carp, and the ratio of grass carp to bighead bream is 1:3 or 1:4, the ratio of grass carp, bighead bream to silver carp and bighead carp is 1:1, and the ratio of silver carp to bighead carp is 4:1 or 5:1 at any time. Among them, the allowable amount of grass carp is 10-15 kg per square meter of water surface; the allowable amount of silver carp is 20-30 kg per 100 square meters of water surface; the maximum allowable amount of bighead carp is 4.5-6.0 kg per 100 square meters of water surface. The ratio of carp as the main fish to other fish is 6:4 or 7:3, and the allowable amount of carp is 90 to 180 per 100 square meters of water. Because carp is very competitive, in ponds where grass carp is the main fish, the carp size should be controlled at 25 grams per tail, and the number per 100 square meters of water surface should not exceed 15. In ponds where black carp is the main fish, the number of bream is generally 30 per 100 square meters of water surface. Sun Kuirang takes crucian carp as the main fish, and the allowable amount is 150 to 220; no matter which fish is the main fish, if silver crucian carp and white crucian carp are mixed and cultured, per 100 square meters of water surface, the number of white crucian carp with a size of 40 to 50 grams per tail is 30 to 45, and the number of silver crucian carp with a size of 15 to 20 grams per tail is 60 to 90. In addition, tilapia is a good matching fish species. It is a wintering fish species weighing 5 to 10 grams, and the matching number is generally 45 to 75 per 100 square meters of water surface.

Now I would like to introduce a fishing spot, Dingtangxing in Jiadai Mountain. It has been stocked with fish for about 3 years. Grass carp and crucian carp are the main species. The grass carp is about 8 jin. The density is relatively high. It has not been opened yet. I just tried fishing. I caught three grass carps, more than a dozen crucian carps, and a small one of 2 large and half a jin with a hand rod for 2 hours.

The fish in the pond are artificially raised, and the species and size can be controlled artificially, and the fish density is much higher than that in natural waters. When there is only one kind of fish in the pond, anglers can completely ignore the interference of other fish, and fishing becomes a simple game of teasing fish with bait. In a high-density pond, anglers do not have to worry about no fish in the nest, and can save...